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18a3e9f265
milvus/internal/datacoord
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XuanYang-cn a77dd1034c
Adopt the extended state in DataCoord (#16200) 
ChannelWatchInfo with ToWatch, ToRelease will trigger a timer.
ChannelManager now reacts to different ChannelWatch states.

- WatchSuccess > log this info

- WatchFailure/WatchTimeout > ToRelease

- ReleaseSuccess > Delete, reassign if not from DropCollection

- ReleaseFailure/ReleaseTimeout > Cleanup subscription and Delete,
  reassgin if not from DropCollection.

Some Notes:
1. Reassignment will add this channel to buffer if there's only one node.

See also: #15846

Signed-off-by: yangxuan <xuan.yang@zilliz.com>
2022-03-28 22:33:27 +08:00
..
allocator_test.go [skip ci]Update license for dc channel manager (#10591) 2021-10-25 20:19:25 +08:00
allocator.go Update codecov.yml (#15639) 2022-02-18 18:29:50 +08:00
channel_checker_test.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
channel_checker.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
channel_manager_factory.go Update some comments for data coord with some minor code refactoring. (#15686) 2022-02-22 13:15:51 +08:00
channel_manager_test.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
channel_manager.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
channel_store_test.go Split watch operations to many transactions (#10655) 2021-10-26 19:38:20 +08:00
channel_store.go Update some comments for data coord with some minor code refactoring. (#15686) 2022-02-22 13:15:51 +08:00
cluster_test.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
cluster.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
compaction_policy_test.go [skip e2e]Fix license missing issue in datacoord (#14426) 2021-12-28 16:16:04 +08:00
compaction_policy.go [skip e2e]Fix license missing issue in datacoord (#14425) 2021-12-28 15:41:50 +08:00
compaction_test.go [skip e2e]Fix license missing issue in datacoord (#14427) 2021-12-28 15:43:51 +08:00
compaction_trigger_test.go Implement mix compaction logic (#15542) 2022-02-18 14:51:49 +08:00
compaction_trigger.go Refine log level in data (#15821) 2022-03-02 15:35:55 +08:00
compaction.go Implement mix compaction logic (#15542) 2022-02-18 14:51:49 +08:00
errors_test.go Improve import statement (#13725) 2021-12-20 15:46:03 +08:00
errors.go [skip e2e] Modify code comments according to naming conventions (#13709) 2021-12-20 11:20:43 +08:00
garbage_collector_test.go Add MinioConfig in GlobalParams for all components (#15099) 2022-01-10 17:29:34 +08:00
garbage_collector.go Refine log level in data (#15821) 2022-03-02 15:35:55 +08:00
handler.go Reduce the number of metrics (#16030) 2022-03-15 21:51:21 +08:00
meta_test.go Make compaction not generate empty segment (#15707) 2022-02-28 10:17:54 +08:00
meta.go Reduce the number of metrics (#16030) 2022-03-15 21:51:21 +08:00
metrics_info_test.go [skip ci]Fix datacoord package name missing (#10608) 2021-10-25 21:21:40 +08:00
metrics_info.go [skip e2e]Sort imports (#14811) 2022-01-05 17:17:26 +08:00
mock_test.go Prepare for import (#16083) 2022-03-21 15:47:23 +08:00
OWNERS [skip ci]Update OWNERS files (#11898) 2021-11-16 15:41:11 +08:00
policy_test.go Update some comments for data coord with some minor code refactoring. (#15686) 2022-02-22 13:15:51 +08:00
policy.go Extend watch/release channel logic in DataNode (#15925) 2022-03-09 15:39:58 +08:00
README.md
segment_allocation_policy_test.go Use GlobalParamTable for all components (#13885) 2021-12-23 18:39:11 +08:00
segment_allocation_policy.go Use GlobalParamTable for all components (#13885) 2021-12-23 18:39:11 +08:00
segment_info.go [skip e2e]Sort imports (#14809) 2022-01-05 14:06:48 +08:00
segment_manager_test.go [skip e2e]Fix segment manager typo (#13644) 2021-12-17 22:34:42 +08:00
segment_manager.go Refine log level in data (#15821) 2022-03-02 15:35:55 +08:00
server_test.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
server.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
services.go Adopt the extended state in DataCoord (#16200) 2022-03-28 22:33:27 +08:00
session_manager.go Refine log level in data (#15821) 2022-03-02 15:35:55 +08:00
session.go [skip e2e] Refine datacoord session comment (#13796) 2021-12-20 19:48:53 +08:00
util_test.go Use CommonConfig in GlobalParams for all components (#15106) 2022-01-10 19:03:35 +08:00
util.go Use CommonConfig in GlobalParams for all components (#15106) 2022-01-10 19:03:35 +08:00

README.md

Data Coordinator

Data cooridnator(datacoord for short) is the component to organize DataNodes and segments allocations.

Dependency

  • KV store: a kv store has all the meta info datacoord needs to operate. (etcd)
  • Message stream: a message stream to communicate statistics information with data nodes. (Pulsar)
  • Root Coordinator: timestamp, id and meta source.
  • Data Node(s): could be an instance or a cluster, actual worker group handles data modification operations.