在 Jetty 中嵌入 Apache ZooKeeper 生成调试日志消息答案

【问题标题】：Embed Apache ZooKeeper in Jetty generates Debug log message在 Jetty 中嵌入 Apache ZooKeeper 生成调试日志消息
【发布时间】：2013-04-06 03:44:41
【问题描述】：

我正在使用 Jetty 8 和 ZooKeeper 3.4.5。当我连接到 ZooKeeper 时，码头不断生成 DEBUG 级别的消息。如何抑制？

16:54:56.757 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:56.758 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:56.758 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:56.759 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:56.760 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:56.760 [main-SendThread(127.0.0.1:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x13ddc6e9a2b000c after 3ms
16:54:56.760 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.424 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.425 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.425 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.426 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.427 [main-SendThread(127.0.0.1:2181)] DEBUG o.a.z.client.ZooKeeperSaslClient - Could not retrieve login configuration: java.lang.SecurityException: Unable to locate a login configuration
16:54:58.427 [main-SendThread(127.0.0.1:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x13ddc6e9a2b000c after 2ms

我在 src 文件夹下添加了 log4j.properties：

# Set root logger level to DEBUG and its only appender to A1.
log4j.rootLogger=DEBUG, A1

# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender

# A1 uses PatternLayout.
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%-4r - [%t] %-5p %c %x - %m%n

log4j.logger.org.apache.zookeeper.ZooKeeper=INFO

还是没有运气。

【问题讨论】：

标签： log4j jetty apache-zookeeper

【解决方案1】：

我再次检查了我包含的库，发现 LogBack 已包含在内。我认为 JVM 加载 logback 而不是 log4j。一旦我提供 logback.xml，问题就解决了。

【讨论】：

【解决方案2】：

配置中的类似内容应该会有所帮助：

<logger name="com.apache.zookeeper" level="info">
   <!-- appenders -->
</logger>

【讨论】：

谢谢，我应该修改哪个文件？这个文件在哪里？
你应该修改log4j配置，有很多方法可以做到logging.apache.org/log4j/2.x/manual/configuration.html
我的意思是，文件的位置在哪里？在动物园管理员文件夹中？或在码头文件夹中？或在 eclipse 文件夹中（我正在使用 eclipse 进行开发）？
你应该在你的项目中创建它
我已经添加了 log4j.properties。还是没有运气。