在 Java zookeeper api 中禁用日志消息答案

【问题标题】：Disable log messages in Java zookeeper api在 Java zookeeper api 中禁用日志消息
【发布时间】：2015-11-23 15:05:23
【问题描述】：

我反复收到这些日志消息..

12:31:39.085 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000bc after 0ms

12:31:39.142 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000be after 0ms

12:31:39.142 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000bd after 0ms

12:31:39.183 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000bf after 0ms

12:31:39.183 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000c0 after 0ms

12:31:39.256 [localhost-startStop-1-SendThread(localhost:2182)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x14f7213a94000c1 after 0ms

我也将 log4j2.xml 更改为 root level = "OFF"。

如何关闭此日志记录功能？

【问题讨论】：

标签： java apache-zookeeper

【解决方案1】：

您可以在 log4j2.xml 中添加另一个记录器来更改 zookeeper 的日志级别。假设您已经定义了名为 file 的 Appender，您可以添加 Logger 部分，如下所示

<Appenders>
  <RollingFile name="file" ...
   ...
  </RollingFile>
</Appenders>
<Loggers>
  ...
  <Logger name="org.apache.zookeeper" level="warn" additivity="false">
    <AppenderRef ref="file"/>
  </Logger>
  ...
</Loggers>

【讨论】：

【解决方案2】：

您的日志级别是 DEBUG，确实非常冗长，不适合在生产系统中使用。我会在 log4j.properties 文件（conf 导向器）中将日志级别增加到 WARN 甚至 ERROR。有关更完整的说明，请参见此处：

Why does zookeeper not use my log4j.properties file log directory

【讨论】：