json - 将 JsonLayout 与 SOLR 日志一起使用

Question

我正在尝试使用 JSONLayout 以 JSON 格式记录来自 SOLR 的所有事件。我正在使用 SOLR 的官方 docker 映像，但我无法让它工作。这是我的设置：

Dockerfile

FROM solr:7
COPY log4j2-json.xml /opt/solr/server/resources/log4j2.xml

USER root
RUN chmod 644 /opt/solr/server/resources/log4j2.xml
RUN chown solr:solr /opt/solr/server/resources/log4j2.xml

USER solr
EXPOSE 8983
CMD ["solr-precreate", "gettingstarted"]

log4j2.xml 原始文件（没有 JsonLayout），它确实创建了 solr.log 文件（使用 PatternLayout）：

<?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.
  -->

<Configuration>
  <Appenders>

    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout>
        <Pattern>
          %d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
        </Pattern>
      </PatternLayout>
    </Console>

    <RollingFile
        name="RollingFile"
        fileName="${sys:solr.log.dir}/solr.log"
        filePattern="${sys:solr.log.dir}/solr.log.%i" >
      <PatternLayout>
        <Pattern>
          %d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
        </Pattern>
      </PatternLayout>
      <Policies>
        <OnStartupTriggeringPolicy />
        <SizeBasedTriggeringPolicy size="32 MB"/>
      </Policies>
      <DefaultRolloverStrategy max="10"/>
    </RollingFile>

    <RollingFile
        name="SlowFile"
        fileName="${sys:solr.log.dir}/solr_slow_requests.log"
        filePattern="${sys:solr.log.dir}/solr_slow_requests.log.%i" >
      <PatternLayout>
        <Pattern>
          %d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
        </Pattern>
      </PatternLayout>
      <Policies>
        <OnStartupTriggeringPolicy />
        <SizeBasedTriggeringPolicy size="32 MB"/>
      </Policies>
      <DefaultRolloverStrategy max="10"/>
    </RollingFile>

  </Appenders>
  <Loggers>
    <Logger name="org.apache.hadoop" level="warn"/>
    <Logger name="org.apache.solr.update.LoggingInfoStream" level="off"/>
    <Logger name="org.apache.zookeeper" level="warn"/>
    <Logger name="org.apache.solr.core.SolrCore.SlowRequest" level="info" additivity="false">
      <AppenderRef ref="SlowFile"/>
    </Logger>

    <Root level="info">
      <AppenderRef ref="RollingFile"/>
      <AppenderRef ref="STDOUT"/>
    </Root>
  </Loggers>
</Configuration>

在 RollingFile appender 中带有 JsonLayout 的 log4j2.xml 会破坏它。没有创建 solr.log 文件：

<?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.
  -->

<Configuration>
  <Appenders>

    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout>
        <Pattern>
          %d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
        </Pattern>
      </PatternLayout>
    </Console>

    <RollingFile
        name="RollingFile"
        fileName="${sys:solr.log.dir}/solr.log"
        filePattern="${sys:solr.log.dir}/solr.log.%i" >
      <JsonLayout complete="false" compact="true" eventEol="true" />
      <Policies>
        <OnStartupTriggeringPolicy />
        <SizeBasedTriggeringPolicy size="32 MB"/>
      </Policies>
      <DefaultRolloverStrategy max="10"/>
    </RollingFile>

    <RollingFile
        name="SlowFile"
        fileName="${sys:solr.log.dir}/solr_slow_requests.log"
        filePattern="${sys:solr.log.dir}/solr_slow_requests.log.%i" >
      <PatternLayout>
        <Pattern>
          %d{yyyy-MM-dd HH:mm:ss.SSS} %-5p (%t) [%X{collection} %X{shard} %X{replica} %X{core}] %c{1.} %m%n
        </Pattern>
      </PatternLayout>
      <Policies>
        <OnStartupTriggeringPolicy />
        <SizeBasedTriggeringPolicy size="32 MB"/>
      </Policies>
      <DefaultRolloverStrategy max="10"/>
    </RollingFile>

  </Appenders>
  <Loggers>
    <Logger name="org.apache.hadoop" level="warn"/>
    <Logger name="org.apache.solr.update.LoggingInfoStream" level="off"/>
    <Logger name="org.apache.zookeeper" level="warn"/>
    <Logger name="org.apache.solr.core.SolrCore.SlowRequest" level="info" additivity="false">
      <AppenderRef ref="SlowFile"/>
    </Logger>

    <Root level="debug">
      <AppenderRef ref="RollingFile"/>
      <AppenderRef ref="STDOUT"/>
    </Root>
  </Loggers>
</Configuration>

我希望看到在 logdir 中创建的 solr.log 文件并以 json 格式查看事件。但是甚至没有创建 solr.log 文件。但是 SOLR 确实开始了。

我错过了什么？

谢谢你的帮助。

PS。我发现这个线程描述了同样的问题但没有解决方案：见这里

标签： jsonlog4j2