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[Feature][Registry] Support etcd as registry (#10981)

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23
dolphinscheduler-bom/pom.xml
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@ -38,6 +38,9 @@
<zookeeper.version>3.4.14</zookeeper.version>
<curator.version>4.3.0</curator.version>
<curator-test.version>2.12.0</curator-test.version>
<jetcd.version>0.5.11</jetcd.version>
<jetcd.test.version>0.7.1</jetcd.test.version>
<io.grpc.version>1.41.0</io.grpc.version>
<commons-codec.version>1.11</commons-codec.version>
<commons-logging.version>1.1.1</commons-logging.version>
<commons-lang3.version>3.12.0</commons-lang3.version>
@ -243,6 +246,26 @@
<version>${curator-test.version}</version>
</dependency>
<!-- Etcd -->
<dependency>
<groupId>io.etcd</groupId>
<artifactId>jetcd-core</artifactId>
<version>${jetcd.version}</version>
</dependency>
<dependency>
<groupId>io.etcd</groupId>
<artifactId>jetcd-test</artifactId>
<version>${jetcd.test.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-bom</artifactId>
<version>${io.grpc.version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>

17
dolphinscheduler-dist/release-docs/LICENSE
View File

@ -445,6 +445,21 @@ The text of each license is also included at licenses/LICENSE-[project].txt.
websocket-common 9.4.48.v20220622: https://mvnrepository.com/artifact/org.eclipse.jetty.websocket/websocket-common/9.4.48.v20220622, Apache 2.0
zeppelin-client 0.10.1: https://mvnrepository.com/artifact/org.apache.zeppelin/zeppelin-client/0.10.1, Apache 2.0
zeppelin-common 0.10.1: https://mvnrepository.com/artifact/org.apache.zeppelin/zeppelin-common/0.10.1, Apache 2.0
jetcd-common 0.5.11: https://mvnrepository.com/artifact/io.etcd/jetcd-common/0.5.11, Apache 2.0
jetcd-core 0.5.11: https://mvnrepository.com/artifact/io.etcd/jetcd-core/0.5.11, Apache 2.0
grpc-api 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-api/1.41.0 Apache 2.0
grpc-context 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-context/1.41.0 Apache 2.0
grpc-core 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-core/1.41.0 Apache 2.0
grpc-grpclb 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-grpclb/1.41.0 Apache 2.0
grpc-netty 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-netty/1.41.0 Apache 2.0
grpc-protobuf 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-protobuf/1.41.0 Apache 2.0
grpc-protobuf-lite 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-protobuf-lite/1.41.0 Apache 2.0
grpc-stub 1.41.0: https://mvnrepository.com/artifact/io.grpc/grpc-stub/1.41.0 Apache 2.0
failsafe 2.4.4: https://mvnrepository.com/artifact/net.jodah/failsafe/2.4.4 Apache 2.0
auto-service-annotations 1.0.1: https://mvnrepository.com/artifact/com.google.auto.service/auto-service-annotations/1.0.1 Apache 2.0
annotations 4.1.1.4: https://mvnrepository.com/artifact/com.google.android/annotations/4.1.1.4 Apache 2.0
perfmark-api 0.23.0: https://mvnrepository.com/artifact/io.perfmark/perfmark-api/0.23.0 Apache 2.0
proto-google-common-protos 2.0.1: https://mvnrepository.com/artifact/com.google.api.grpc/proto-google-common-protos/2.0.1 Apache 2.0
kotlin 1.6.21: https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-stdlib, Apache 2.0
JetBrains annotations: https://mvnrepository.com/artifact/org.jetbrains/annotations, Apache 2.0
@ -471,6 +486,8 @@ The text of each license is also included at licenses/LICENSE-[project].txt.
janino 3.1.7: https://mvnrepository.com/artifact/org.codehaus.janino/janino/3.1.7, BSD 3-clause
commons-compiler 3.1.7: https://mvnrepository.com/artifact/org.codehaus.janino/janino/3.1.7, BSD 3-clause
automaton 1.11-8 https://mvnrepository.com/artifact/dk.brics.automaton/automaton/1.11-8, BSD 2-clause
protobuf-java 3.17.2: https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java/3.17.2 BSD 3-clause
protobuf-java-util 3.17.2: https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java-util/3.17.2 BSD 3-clause
========================================================================
CDDL licenses

128
dolphinscheduler-dist/release-docs/NOTICE
View File

@ -1990,3 +1990,131 @@ Xmlbeans NOTICE
- W3C XML Schema documents Copyright 2001-2003 (c) World Wide Web
Consortium (Massachusetts Institute of Technology, European Research
Consortium for Informatics and Mathematics, Keio University)
=========================================================================
jetcd NOTICE
=========================================================================
CoreOS Project
Copyright 2018 CoreOS, Inc
This product includes software developed at CoreOS, Inc.
(http://www.coreos.com/).
=========================================================================
grpc NOTICE
=========================================================================
Copyright 2014 The gRPC Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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-----------------------------------------------------------------------
This product contains a modified portion of 'OkHttp', an open source
HTTP & SPDY client for Android and Java applications, which can be obtained
at:
* LICENSE:
* okhttp/third_party/okhttp/LICENSE (Apache License 2.0)
* HOMEPAGE:
* https://github.com/square/okhttp
* LOCATION_IN_GRPC:
* okhttp/third_party/okhttp
This product contains a modified portion of 'Envoy', an open source
cloud-native high-performance edge/middle/service proxy, which can be
obtained at:
* LICENSE:
* xds/third_party/envoy/LICENSE (Apache License 2.0)
* NOTICE:
* xds/third_party/envoy/NOTICE
* HOMEPAGE:
* https://www.envoyproxy.io
* LOCATION_IN_GRPC:
* xds/third_party/envoy
This product contains a modified portion of 'protoc-gen-validate (PGV)',
an open source protoc plugin to generate polyglot message validators,
which can be obtained at:
* LICENSE:
* xds/third_party/protoc-gen-validate/LICENSE (Apache License 2.0)
* NOTICE:
* xds/third_party/protoc-gen-validate/NOTICE
* HOMEPAGE:
* https://github.com/envoyproxy/protoc-gen-validate
* LOCATION_IN_GRPC:
* xds/third_party/protoc-gen-validate
This product contains a modified portion of 'udpa',
an open source universal data plane API, which can be obtained at:
* LICENSE:
* xds/third_party/udpa/LICENSE (Apache License 2.0)
* HOMEPAGE:
* https://github.com/cncf/udpa
* LOCATION_IN_GRPC:
* xds/third_party/udpa
=========================================================================
perfmark NOTICE
=========================================================================
Copyright 2019 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-----------------------------------------------------------------------
This product contains a modified portion of 'Catapult', an open source
Trace Event viewer for Chome, Linux, and Android applications, which can
be obtained at:
* LICENSE:
* traceviewer/src/main/resources/io/perfmark/traceviewer/third_party/catapult/LICENSE (New BSD License)
* HOMEPAGE:
* https://github.com/catapult-project/catapult
This product contains a modified portion of 'Polymer', a library for Web
Components, which can be obtained at:
* LICENSE:
* traceviewer/src/main/resources/io/perfmark/traceviewer/third_party/polymer/LICENSE (New BSD License)
* HOMEPAGE:
* https://github.com/Polymer/polymer
This product contains a modified portion of 'ASM', an open source
Java Bytecode library, which can be obtained at:
* LICENSE:
* agent/src/main/resources/io/perfmark/agent/third_party/asm/LICENSE (BSD style License)
* HOMEPAGE:
* https://asm.ow2.io/

13
dolphinscheduler-dist/release-docs/licenses/LICENSE-auto-service-annotations.txt Normal file
View File

@ -0,0 +1,13 @@
Copyright 2013 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

177
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@ -0,0 +1,177 @@
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outstanding shares, or (iii) beneficial ownership of such entity.
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exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

201
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

42
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@ -0,0 +1,42 @@
This license applies to all parts of Protocol Buffers except the following:
- Atomicops support for generic gcc, located in
src/google/protobuf/stubs/atomicops_internals_generic_gcc.h.
This file is copyrighted by Red Hat Inc.
- Atomicops support for AIX/POWER, located in
src/google/protobuf/stubs/atomicops_internals_power.h.
This file is copyrighted by Bloomberg Finance LP.
Copyright 2014, Google Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Code generated by the Protocol Buffer compiler is owned by the owner
of the input file used when generating it. This code is not
standalone and requires a support library to be linked with it. This
support library is itself covered by the above license.

201
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

33
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## Function
DS use registry to do the below three things:
1. Store the metadata of master/worker so that it can get notify when nodes up and down.
2. Store the metadata of worker to do load balance.
3. Acquire a global lock when do failover.
So for DS, the registry need to notify the server when the server subscribe data have added/deleted/updated, support a way to create/release a global lock,
delete the server's metadata when server down.
## How to use
At present, we have implements three registry: Zookeeper(Default),Etcd,Mysql. If you
want to use them, you should config it at resource/application.yaml. The configuration details
can be viewed in the README of plugin under Module dolphinscheduler-registry-plugins
## Module
### dolphinscheduler-registry-all
This module is used for exporting the implemention of registry.
If you want to add new registry,you should add the dependency in the pom.xml
### dolphinscheduler-registry-api
This module contains the relevant interfaces involved in the use of the registry.
The following are several important interfaces
1. Registry Interface: If you want to implement your own registry, you just need to implement this interface
2. ConnectionListener Interface: This interface is responsible for the connection status between the client and the registry,
The connection state can be viewed in ConnectionState.java
3. SubscribeListener Interface: This interface is responsible for monitoring the state changes of child nodes under the specified prefix.
Event content can be viewed in event.java
### dolphinscheduler-registry-plugins
This module contains all registry implementations in DS

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dolphinscheduler-registry/dolphinscheduler-registry-all/pom.xml
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@ -38,5 +38,10 @@
<artifactId>dolphinscheduler-registry-mysql</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.apache.dolphinscheduler</groupId>
<artifactId>dolphinscheduler-registry-etcd</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>

4
dolphinscheduler-registry/dolphinscheduler-registry-api/src/main/java/org/apache/dolphinscheduler/registry/api/ConnectionListener.java
View File

@ -19,6 +19,10 @@
package org.apache.dolphinscheduler.registry.api;
/**
* when the connect state between client and registry center changed,
* the {@code onUpdate} function is triggered
*/
@FunctionalInterface
public interface ConnectionListener {
void onUpdate(ConnectionState newState);

3
dolphinscheduler-registry/dolphinscheduler-registry-api/src/main/java/org/apache/dolphinscheduler/registry/api/ConnectionState.java
View File

@ -19,6 +19,9 @@
package org.apache.dolphinscheduler.registry.api;
/**
* Connection state between client and registry center(Etcd, MySql, Zookeeper)
*/
public enum ConnectionState {
CONNECTED,
RECONNECTED,

4
dolphinscheduler-registry/dolphinscheduler-registry-api/src/main/java/org/apache/dolphinscheduler/registry/api/Event.java
View File

@ -20,9 +20,13 @@
package org.apache.dolphinscheduler.registry.api;
public class Event {
// The prefix which is watched
private String key;
// The full path where the event was generated
private String path;
// The value corresponding to the path
private String data;
// The event type {ADD, REMOVE, UPDATE}
private Type type;
public Event(String key, String path, String data, Type type) {

42
dolphinscheduler-registry/dolphinscheduler-registry-api/src/main/java/org/apache/dolphinscheduler/registry/api/Registry.java
View File

@ -19,12 +19,15 @@
package org.apache.dolphinscheduler.registry.api;
import lombok.NonNull;
import java.io.Closeable;
import java.time.Duration;
import java.util.Collection;
import lombok.NonNull;
/**
* Registry
*/
public interface Registry extends Closeable {
/**
@ -37,21 +40,56 @@ public interface Registry extends Closeable {
boolean subscribe(String path, SubscribeListener listener);
/**
* Remove the path from the subscribe list.
*/
void unsubscribe(String path);
/**
* Add a connection listener to collection.
*/
void addConnectionStateListener(ConnectionListener listener);
/**
* @return the value
*/
String get(String key);
/**
*
* @param key
* @param value
* @param deleteOnDisconnect if true, when the connection state is disconnected, the key will be deleted
*/
void put(String key, String value, boolean deleteOnDisconnect);
/**
* This function will delete the keys whose prefix is {@param key}
* @param key the prefix of deleted key
* @throws if the key not exists, there is a registryException
*/
void delete(String key);
/**
* @return {@code true} if key exists.
* E.g: registry contains the following keys:[/test/test1/test2,]
* if the key: /test
* Return: test1
*/
Collection<String> children(String key);
/**
* @return if key exists,return true
*/
boolean exists(String key);
/**
* Acquire the lock of the prefix {@param key}
*/
boolean acquireLock(String key);
/**
* Release the lock of the prefix {@param key}
*/
boolean releaseLock(String key);
}

27
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/README.md Normal file
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@ -0,0 +1,27 @@
# Introduction
This module is the etcd registry plugin module, this plugin will use etcd as the registry center.
# How to use
If you want to set the registry center as etcd, you need to set the registry properties in master/worker/api's appplication.yml
```yaml
registry:
type: etcd
endpoints: "http://etcd0:2379, http://etcd1:2379, http://etcd2:2379"
# The options below have default values
namespace: dolphinscheduler
connectionTimeout: 9s
# The unit is milliseconds
retryDelay: 60ms
retryMaxDelay: 300ms
retryMaxDuration: 1500ms
# The following options are set according to personal needs
user: ""
password: ""
authority: ""
loadBalancerPolicy: ""
```
After do this config, you can start your DolphinScheduler cluster, your cluster will use etcd as registry center to
store server metadata.

67
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/pom.xml Normal file
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@ -0,0 +1,67 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
~ Licensed to the Apache Software Foundation (ASF) under one or more
~ contributor license agreements. See the NOTICE file distributed with
~ this work for additional information regarding copyright ownership.
~ The ASF licenses this file to You under the Apache License, Version 2.0
~ (the "License"); you may not use this file except in compliance with
~ the License. You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>dolphinscheduler-registry-plugins</artifactId>
<groupId>org.apache.dolphinscheduler</groupId>
<version>dev-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dolphinscheduler-registry-etcd</artifactId>
<dependencies>
<dependency>
<groupId>org.apache.dolphinscheduler</groupId>
<artifactId>dolphinscheduler-registry-api</artifactId>
</dependency>
<dependency>
<groupId>io.etcd</groupId>
<artifactId>jetcd-core</artifactId>
<exclusions>
<exclusion>
<groupId>io.netty</groupId>
<artifactId>netty-codec-http2</artifactId>
</exclusion>
<exclusion>
<groupId>io.netty</groupId>
<artifactId>netty-handler</artifactId>
</exclusion>
<exclusion>
<groupId>io.netty</groupId>
<artifactId>netty-handler-proxy</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.etcd</groupId>
<artifactId>jetcd-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
</dependencies>
</project>

115
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/src/main/java/org/apache/dolphinscheduler/plugin/registry/etcd/EtcdConnectionStateListener.java Normal file
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@ -0,0 +1,115 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dolphinscheduler.plugin.registry.etcd;
import org.apache.dolphinscheduler.registry.api.ConnectionListener;
import org.apache.dolphinscheduler.registry.api.ConnectionState;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import io.etcd.jetcd.Client;
public class EtcdConnectionStateListener implements AutoCloseable {
private final List<ConnectionListener> connectionListeners = Collections.synchronizedList(new ArrayList<>());
// A thread pool that periodically obtains connection status
private final ScheduledExecutorService scheduledExecutorService;
// monitored client
private final Client client;
// The state of the last monitor
private volatile ConnectionState connectionState;
public EtcdConnectionStateListener(Client client) {
this.client = client;
this.scheduledExecutorService = Executors.newScheduledThreadPool(
1,
new ThreadFactoryBuilder().setNameFormat("EtcdConnectionStateListenerThread").setDaemon(true).build());
}
public void addConnectionListener(ConnectionListener connectionListener) {
connectionListeners.add(connectionListener);
}
@Override
public void close() throws Exception {
connectionListeners.clear();
scheduledExecutorService.shutdownNow();
}
/**
* Apply for a lease through the client, if there is no exception, the connection is normal
* @return the current connection state
* @throws if there is an exception, return is DISCONNECTED
*/
private ConnectionState currentConnectivityState() {
try {
client.getLeaseClient().grant(1).get().getID();
return ConnectionState.CONNECTED;
} catch (ExecutionException e) {
return ConnectionState.DISCONNECTED;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
return ConnectionState.DISCONNECTED;
}
}
/**
* Periodically execute thread to get connection status
*/
public void start() {
long initialDelay = 500L;
long delay = 500L;
this.scheduledExecutorService.scheduleWithFixedDelay(() -> {
ConnectionState currentConnectionState = currentConnectivityState();
if (currentConnectionState == connectionState) {
return;
}
if (connectionState == ConnectionState.CONNECTED) {
if (currentConnectionState == ConnectionState.DISCONNECTED) {
connectionState = ConnectionState.DISCONNECTED;
triggerListener(ConnectionState.DISCONNECTED);
}
} else if (connectionState == ConnectionState.DISCONNECTED) {
if (currentConnectionState == ConnectionState.CONNECTED) {
connectionState = ConnectionState.CONNECTED;
triggerListener(ConnectionState.RECONNECTED);
}
} else if (connectionState == null) {
connectionState = currentConnectionState;
triggerListener(connectionState);
}
},
initialDelay,
delay,
TimeUnit.MILLISECONDS);
}
// notify all listeners
private void triggerListener(ConnectionState connectionState) {
for (ConnectionListener connectionListener : connectionListeners) {
connectionListener.onUpdate(connectionState);
}
}
}

344
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/src/main/java/org/apache/dolphinscheduler/plugin/registry/etcd/EtcdRegistry.java Normal file
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@ -0,0 +1,344 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dolphinscheduler.plugin.registry.etcd;
import org.apache.dolphinscheduler.registry.api.ConnectionListener;
import org.apache.dolphinscheduler.registry.api.Event;
import org.apache.dolphinscheduler.registry.api.Registry;
import org.apache.dolphinscheduler.registry.api.RegistryException;
import org.apache.dolphinscheduler.registry.api.SubscribeListener;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.time.Duration;
import java.time.temporal.ChronoUnit;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import javax.annotation.PostConstruct;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import com.google.common.base.Splitter;
import io.etcd.jetcd.ByteSequence;
import io.etcd.jetcd.Client;
import io.etcd.jetcd.ClientBuilder;
import io.etcd.jetcd.KeyValue;
import io.etcd.jetcd.Lease;
import io.etcd.jetcd.Lock;
import io.etcd.jetcd.Util;
import io.etcd.jetcd.Watch;
import io.etcd.jetcd.options.DeleteOption;
import io.etcd.jetcd.options.GetOption;
import io.etcd.jetcd.options.PutOption;
import io.etcd.jetcd.options.WatchOption;
import io.etcd.jetcd.support.Observers;
import io.etcd.jetcd.watch.WatchEvent;
import lombok.NonNull;
/**
* This is one of the implementation of {@link Registry}, with this implementation, you need to rely on Etcd cluster to
* store the DolphinScheduler master/worker's metadata and do the server registry/unRegistry.
*/
@Component
@ConditionalOnProperty(prefix = "registry", name = "type", havingValue = "etcd")
public class EtcdRegistry implements Registry {
private static Logger LOGGER = LoggerFactory.getLogger(EtcdRegistry.class);
private final Client client;
private EtcdConnectionStateListener etcdConnectionStateListener;
public static final String FOLDER_SEPARATOR = "/";
// save the lock info for thread
// key:lockKey Value:leaseId
private static final ThreadLocal<Map<String, Long>> threadLocalLockMap = new ThreadLocal<>();
private final Map<String, Watch.Watcher> watcherMap = new ConcurrentHashMap<>();
private static final long TIME_TO_LIVE_SECONDS = 30L;
public EtcdRegistry(EtcdRegistryProperties registryProperties) {
ClientBuilder clientBuilder = Client.builder()
.endpoints(Util.toURIs(Splitter.on(",").trimResults().splitToList(registryProperties.getEndpoints())))
.namespace(byteSequence(registryProperties.getNamespace()))
.connectTimeout(registryProperties.getConnectionTimeout())
.retryChronoUnit(ChronoUnit.MILLIS)
.retryDelay(registryProperties.getRetryDelay().toMillis())
.retryMaxDelay(registryProperties.getRetryMaxDelay().toMillis())
.retryMaxDuration(registryProperties.getRetryMaxDuration());
if (StringUtils.hasLength(registryProperties.getUser()) && StringUtils.hasLength(registryProperties.getPassword())) {
clientBuilder.user(byteSequence(registryProperties.getUser()));
clientBuilder.password(byteSequence(registryProperties.getPassword()));
}
if (StringUtils.hasLength(registryProperties.getLoadBalancerPolicy())) {
clientBuilder.loadBalancerPolicy(registryProperties.getLoadBalancerPolicy());
}
if (StringUtils.hasLength(registryProperties.getAuthority())) {
clientBuilder.authority(registryProperties.getAuthority());
}
client = clientBuilder.build();
LOGGER.info("Started Etcd Registry...");
etcdConnectionStateListener = new EtcdConnectionStateListener(client);
}
/**
* Start the etcd Connection stateListeer
*/
@PostConstruct
public void start() {
LOGGER.info("Starting Etcd ConnectionListener...");
etcdConnectionStateListener.start();
LOGGER.info("Started Etcd ConnectionListener...");
}
@Override
public void connectUntilTimeout(@NonNull Duration timeout) throws RegistryException {
// The connectTimeout has been set in the constructor
}
/**
*
* @param path The prefix of the key being listened to
* @param listener
* @return if subcribe Returns true if no exception was thrown
*/
@Override
public boolean subscribe(String path, SubscribeListener listener) {
try {
ByteSequence watchKey = byteSequence(path);
WatchOption watchOption = WatchOption.newBuilder().isPrefix(true).build();
watcherMap.computeIfAbsent(path, $ -> client.getWatchClient().watch(watchKey, watchOption,watchResponse -> {
for (WatchEvent event : watchResponse.getEvents()) {
listener.notify(new EventAdaptor(event, path));
}
}));
} catch (Exception e) {
throw new RegistryException("Failed to subscribe listener for key: " + path, e);
}
return true;
}
/**
* @throws throws an exception if the unsubscribe path does not exist
* @param path The prefix of the key being listened to
*/
@Override
public void unsubscribe(String path) {
try {
watcherMap.get(path).close();
watcherMap.remove(path);
} catch (Exception e) {
throw new RegistryException("Failed to unsubscribe listener for key: " + path, e);
}
}
@Override
public void addConnectionStateListener(ConnectionListener listener) {
etcdConnectionStateListener.addConnectionListener(listener);
}
/**
*
* @return Returns the value corresponding to the key
* @throws throws an exception if the key does not exist
*/
@Override
public String get(String key) {
try {
List<KeyValue> keyValues = client.getKVClient().get(byteSequence(key)).get().getKvs();
return keyValues.iterator().next().getValue().toString(StandardCharsets.UTF_8);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("etcd get data error", e);
} catch (ExecutionException e) {
throw new RegistryException("etcd get data error, key = " + key, e);
}
}
/**
*
* @param deleteOnDisconnect Does the put data disappear when the client disconnects
*/
@Override
public void put(String key, String value, boolean deleteOnDisconnect) {
try {
if (deleteOnDisconnect) {
// keep the key by lease, if disconnected, the lease will expire and the key will delete
long leaseId = client.getLeaseClient().grant(TIME_TO_LIVE_SECONDS).get().getID();
client.getLeaseClient().keepAlive(leaseId, Observers.observer(response -> {
}));
PutOption putOption = PutOption.newBuilder().withLeaseId(leaseId).build();
client.getKVClient().put(byteSequence(key), byteSequence(value),putOption).get();
} else {
client.getKVClient().put(byteSequence(key), byteSequence(value)).get();
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("Failed to put registry key: " + key, e);
} catch (ExecutionException e) {
throw new RegistryException("Failed to put registry key: " + key, e);
}
}
/**
* delete all keys that contain the prefix {@Code key}
*/
@Override
public void delete(String key) {
try {
DeleteOption deleteOption = DeleteOption.newBuilder().isPrefix(true).build();
client.getKVClient().delete(byteSequence(key), deleteOption).get();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("Failed to delete registry key: " + key, e);
} catch (ExecutionException e) {
throw new RegistryException("Failed to delete registry key: " + key, e);
}
}
/**
* Get all child objects, split by "/"
*/
@Override
public Collection<String> children(String key) {
// Make sure the string end with '/'
// eg:change key = /nodes to /nodes/
String prefix = key.endsWith(FOLDER_SEPARATOR) ? key : key + FOLDER_SEPARATOR;
GetOption getOption = GetOption.newBuilder().isPrefix(true).withSortField(GetOption.SortTarget.KEY).withSortOrder(GetOption.SortOrder.ASCEND).build();
try {
List<KeyValue> keyValues = client.getKVClient().get(byteSequence(prefix),getOption).get().getKvs();
return keyValues.stream().map(e -> getSubNodeKeyName(prefix, e.getKey().toString(StandardCharsets.UTF_8))).distinct().collect(Collectors.toList());
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("etcd get children error", e);
} catch (ExecutionException e) {
throw new RegistryException("etcd get children error, key: " + key, e);
}
}
/**
* If "/" exists in the child object, get the string prefixed with "/"
*/
private String getSubNodeKeyName(final String prefix, final String fullPath) {
String pathWithoutPrefix = fullPath.substring(prefix.length());
return pathWithoutPrefix.contains(FOLDER_SEPARATOR) ? pathWithoutPrefix.substring(0, pathWithoutPrefix.indexOf(FOLDER_SEPARATOR)) : pathWithoutPrefix;
}
@Override
public boolean exists(String key) {
GetOption getOption = GetOption.newBuilder().withCountOnly(true).build();
try {
if (client.getKVClient().get(byteSequence(key),getOption).get().getCount() >= 1) {
return true;
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("etcd check key is existed error", e);
} catch (ExecutionException e) {
throw new RegistryException("etcd check key is existed error, key: " + key, e);
}
return false;
}
/**
* get the lock with a lease
*/
@Override
public boolean acquireLock(String key) {
Lock lockClient = client.getLockClient();
Lease leaseClient = client.getLeaseClient();
// get the lock with a lease
try {
long leaseId = leaseClient.grant(TIME_TO_LIVE_SECONDS).get().getID();
// keep the lease
client.getLeaseClient().keepAlive(leaseId, Observers.observer(response -> {
}));
lockClient.lock(byteSequence(key),leaseId).get();
// save the leaseId for release Lock
if (null == threadLocalLockMap.get()) {
threadLocalLockMap.set(new HashMap<>());
}
threadLocalLockMap.get().put(key,leaseId);
return true;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RegistryException("etcd get lock error", e);
} catch (ExecutionException e) {
throw new RegistryException("etcd get lock error, lockKey: " + key, e);
}
}
/**
* release the lock by revoking the leaseId
*/
@Override
public boolean releaseLock(String key) {
try {
Long leaseId = threadLocalLockMap.get().get(key);
client.getLeaseClient().revoke(leaseId);
threadLocalLockMap.get().remove(key);
if (threadLocalLockMap.get().isEmpty()) {
threadLocalLockMap.remove();
}
} catch (Exception e) {
throw new RegistryException("etcd release lock error, lockKey: " + key, e);
}
return true;
}
@Override
public void close() throws IOException {
// When the client closes, the watch also closes.
client.close();
}
private static ByteSequence byteSequence(String val) {
return ByteSequence.from(val, StandardCharsets.UTF_8);
}
static final class EventAdaptor extends Event {
public EventAdaptor(WatchEvent event, String key) {
key(key);
switch (event.getEventType()) {
case PUT:
type(Type.ADD);
break;
case DELETE:
type(Type.REMOVE);
break;
default:
break;
}
KeyValue keyValue = event.getKeyValue();
if (keyValue != null) {
path(keyValue.getKey().toString(StandardCharsets.UTF_8));
data(keyValue.getValue().toString(StandardCharsets.UTF_8));
}
}
}
}

49
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/src/main/java/org/apache/dolphinscheduler/plugin/registry/etcd/EtcdRegistryProperties.java Normal file
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@ -0,0 +1,49 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dolphinscheduler.plugin.registry.etcd;
import java.time.Duration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import lombok.Data;
@Data
@Configuration
@ConditionalOnProperty(prefix = "registry", name = "type", havingValue = "etcd")
@ConfigurationProperties(prefix = "registry")
public class EtcdRegistryProperties {
private String endpoints;
private String namespace = "dolphinscheduler";
private Duration connectionTimeout = Duration.ofSeconds(9);
// auth
private String user;
private String password;
private String authority;
// RetryPolicy
private Duration retryDelay = Duration.ofMillis(60);
private Duration retryMaxDelay = Duration.ofMillis(300);
private Duration retryMaxDuration = Duration.ofMillis(1500);
// loadBalancerPolicy
private String loadBalancerPolicy;
}

142
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-etcd/src/test/java/org/apache/dolphinscheduler/plugin/registry/etcd/EtcdRegistryTest.java Normal file
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@ -0,0 +1,142 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dolphinscheduler.plugin.registry.etcd;
import org.apache.dolphinscheduler.registry.api.Event;
import org.apache.dolphinscheduler.registry.api.SubscribeListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.jupiter.api.extension.RegisterExtension;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.etcd.jetcd.test.EtcdClusterExtension;
public class EtcdRegistryTest {
private static final Logger logger = LoggerFactory.getLogger(EtcdRegistryTest.class);
@RegisterExtension
public static final EtcdClusterExtension server = EtcdClusterExtension.builder()
.withNodes(1)
.withImage("ibmcom/etcd:3.2.24")
.build();
public static EtcdRegistry registry;
@BeforeClass
public static void before() throws Exception {
EtcdRegistryProperties properties = new EtcdRegistryProperties();
server.restart();
properties.setEndpoints(String.valueOf(server.clientEndpoints().get(0)));
registry = new EtcdRegistry(properties);
registry.put("/sub", "sub", false);
}
@Test
public void persistTest() {
registry.put("/nodes/m1", "", false);
registry.put("/nodes/m2", "", false);
Assert.assertEquals(Arrays.asList("m1", "m2"), registry.children("/nodes"));
Assert.assertTrue(registry.exists("/nodes/m1"));
registry.delete("/nodes/m2");
Assert.assertFalse(registry.exists("/nodes/m2"));
registry.delete("/nodes");
Assert.assertFalse(registry.exists("/nodes/m1"));
}
@Test
public void lockTest() {
CountDownLatch preCountDownLatch = new CountDownLatch(1);
CountDownLatch allCountDownLatch = new CountDownLatch(2);
List<String> testData = new ArrayList<>();
new Thread(() -> {
registry.acquireLock("/lock");
preCountDownLatch.countDown();
logger.info(Thread.currentThread().getName() + " :I got the lock, but I don't want to work. I want to rest for a while");
try {
Thread.sleep(1000);
logger.info(Thread.currentThread().getName() + " :I'm going to start working");
testData.add("thread1");
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} finally {
logger.info(Thread.currentThread().getName() + " :I have finished my work, now I release the lock");
registry.releaseLock("/lock");
allCountDownLatch.countDown();
}
}).start();
try {
preCountDownLatch.await(5,TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
new Thread(() -> {
try {
logger.info(Thread.currentThread().getName() + " :I am trying to acquire the lock");
registry.acquireLock("/lock");
logger.info(Thread.currentThread().getName() + " :I got the lock and I started working");
testData.add("thread2");
} finally {
registry.releaseLock("/lock");
allCountDownLatch.countDown();
}
}).start();
try {
allCountDownLatch.await(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
Assert.assertEquals(testData, Arrays.asList("thread1", "thread2"));
}
@Test
public void subscribeTest() {
boolean status = registry.subscribe("/sub", new TestListener());
// The following add and delete operations are used for debugging
registry.put("/sub/m1", "tt", false);
registry.put("/sub/m2", "tt", false);
registry.delete("/sub/m2");
registry.delete("/sub");
Assert.assertTrue(status);
}
static class TestListener implements SubscribeListener {
@Override
public void notify(Event event) {
logger.info("I'm test listener");
}
}
@AfterClass
public static void after() throws IOException {
registry.close();
}
}

1
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-mysql/src/main/java/org/apache/dolphinscheduler/plugin/registry/mysql/MysqlRegistry.java
View File

@ -26,6 +26,7 @@ import org.apache.dolphinscheduler.registry.api.ConnectionState;
import org.apache.dolphinscheduler.registry.api.Registry;
import org.apache.dolphinscheduler.registry.api.RegistryException;
import org.apache.dolphinscheduler.registry.api.SubscribeListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;

27
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-zookeeper/README.md Normal file
View File

@ -0,0 +1,27 @@
# Introduction
This module is the zookeeper registry plugin module, this plugin will use zookeeper as the registry center.
# How to use
If you want to set the registry center as zookeeper,you need to set the registry properties in master/worker/api's appplication.yml
```yaml
registry:
type: zookeeper
zookeeper:
namespace: dolphinscheduler
connect-string: localhost:2181
retry-policy:
base-sleep-time: 60ms
max-sleep: 300ms
max-retries: 5
session-timeout: 30s
connection-timeout: 9s
block-until-connected: 600ms
# The following options are set according to personal needs
digest: ~
```
After do this config, you can start your DolphinScheduler cluster, your cluster will use zookeeper as registry center to
store server metadata.

5
dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-zookeeper/src/test/java/org/apache/dolphinscheduler/plugin/registry/zookeeper/ZookeeperRegistryTest.java
View File

@ -27,6 +27,7 @@ import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.After;
import org.junit.Assert;
@ -86,7 +87,7 @@ public class ZookeeperRegistryTest {
allCountDownLatch.countDown();
}
}).start();
preCountDownLatch.await();
preCountDownLatch.await(5, TimeUnit.SECONDS);
new Thread(() -> {
try {
logger.info(Thread.currentThread().getName() + " :I am trying to acquire the lock");
@ -100,7 +101,7 @@ public class ZookeeperRegistryTest {
}
}).start();
allCountDownLatch.await();
allCountDownLatch.await(5, TimeUnit.SECONDS);
Assert.assertEquals(testData, Arrays.asList("thread1", "thread2"));
}

1
dolphinscheduler-registry/dolphinscheduler-registry-plugins/pom.xml
View File

@ -33,5 +33,6 @@
<modules>
<module>dolphinscheduler-registry-zookeeper</module>
<module>dolphinscheduler-registry-mysql</module>
<module>dolphinscheduler-registry-etcd</module>
</modules>
</project>

17
tools/dependencies/known-dependencies.txt
View File

@ -299,5 +299,22 @@ xmlbeans-3.1.0.jar
xmlenc-0.52.jar
zeppelin-client-0.10.1.jar
zeppelin-common-0.10.1.jar
jetcd-common-0.5.11.jar
jetcd-core-0.5.11.jar
grpc-api-1.41.0.jar
grpc-context-1.41.0.jar
grpc-core-1.41.0.jar
grpc-grpclb-1.41.0.jar
grpc-netty-1.41.0.jar
grpc-protobuf-1.41.0.jar
grpc-protobuf-lite-1.41.0.jar
grpc-stub-1.41.0.jar
failsafe-2.4.4.jar
auto-service-annotations-1.0.1.jar
annotations-4.1.1.4.jar
perfmark-api-0.23.0.jar
proto-google-common-protos-2.0.1.jar
protobuf-java-3.17.2.jar
protobuf-java-util-3.17.2.jar
zjsonpatch-0.3.0.jar
zookeeper-3.4.14.jar