2020-11-30 14:43:16 +08:00
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<!--
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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-->
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# 摘要
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- [**定义**](#定义)
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- [**属性列表**](#属性列表)
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- [**如何开启和禁用**](#如何开启和禁用)
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- [**如何更新**](#如何更新)
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## 定义
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`error-log-logger` 是用于按用户设定的 log 级别对 APISIX 的 error.log 进行筛选，继而将筛选的数据发送到 TCP 服务的插件。
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以实现将 error.log 中的数据进行筛选并发送到监控工具或其它 TCP 服务的能力。
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该插件提供了将日志数据作为批处理推送到外部 TCP 服务器的功能。如果您没有收到日志数据，请放心一些时间，它会在我们的批处理处理器中的计时器功能到期后自动发送日志。
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有关 Apache APISIX 中 Batch-Processor 的更多信息，请参考。
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[Batch-Processor](../batch-processor.md)
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## 属性列表
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| 名称 | 类型 | 必选项 | 默认值 | 有效值 | 描述 |
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| ---------------- | ------- | ------ | ------ | ------- | ------------------------------------------------ |
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| host | string | 必须 | | | TCP 服务的IP地址或主机名 |
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| port | integer | 必须 | | [0,...] | 目标端口 |
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| timeout | integer | 可选 | 3 | [1,...] | 连接和发送数据超时间（以秒为单位） |
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| keepalive | integer | 可选 | 30 | [1,...] | 复用连接时，连接保持的时间（以秒为单位） |
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| level | string | 可选 | WARN | | 进行错误日志筛选的级别，缺省WARN，取值["STDERR", "EMERG", "ALERT", "CRIT", "ERR", "ERROR", "WARN", "NOTICE", "INFO", "DEBUG"]，其中 ERR 与 ERROR 级别一致 |
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| tls | boolean | 可选 | false | | 用于控制是否执行SSL验证 |
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| tls_server_name | string | 可选 | | | TLS 服务名称标记 |
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| inactive_timeout | integer | 可选 | 3 | [1,...] | 刷新缓冲区的最大时间（以秒为单位） |
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| batch_max_size | integer | 可选 | 1000 | [1,...] | 每批的最大大小 |
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| buffer_duration | integer | 可选 | 60 | [1,...] | 必须先处理批次中最旧条目的最长期限（以秒为单位） |
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| max_retry_count | integer | 可选 | 0 | [0,...] | 从处理管道中移除之前的最大重试次数 |
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| retry_delay | integer | 可选 | 1 | [0,...] | 如果执行失败，则应延迟执行流程的秒数 |
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## 如何开启和禁用
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本插件属于 APISIX 全局性插件。
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### 开启插件
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在 `conf/config.yaml` 中启用插件 `error-log-logger` 即可，不需要在任何 route 或 service 中绑定。
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下面是一个在`conf/config.yaml` 中添加插件信息的例子：
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```yaml
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plugins: # plugin list
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... ...
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- request-id
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- hmac-auth
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- api-breaker
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- error-log-logger # enable plugin `error-log-logger
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```
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### 禁用插件
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在 `conf/config.yaml` 中删除或注释掉插件 `error-log-logger`即可。
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```yaml
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plugins: # plugin list
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... ...
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- request-id
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- hmac-auth
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- api-breaker
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#- error-log-logger # enable plugin `error-log-logger
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```
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## 如何设置接收日志的 TCP 服务器
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步骤：更新插件属性
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```shell
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2021-02-09 09:19:49 +08:00
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curl http://127.0.0.1:9080/apisix/admin/plugin_metadata/error-log-logger -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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2020-11-30 14:43:16 +08:00
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{
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"host": "127.0.0.1",
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"port": 1999,
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"inactive_timeout": 1
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}'
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```
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