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https://issues.apache.org/jira/browse/LOG4J2-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13658771#comment-13658771
]
Edward Sargisson commented on LOG4J2-196:
-----------------------------------------
Verified - can be closed.
> log4j2 blocks on logging calls if the FlumeAppender loses its connection to
> the remote flume agent
> --------------------------------------------------------------------------------------------------
>
> Key: LOG4J2-196
> URL: https://issues.apache.org/jira/browse/LOG4J2-196
> Project: Log4j 2
> Issue Type: Bug
> Components: Flume Appender
> Affects Versions: 2.0-beta5
> Reporter: offbynull
> Assignee: Ralph Goers
> Fix For: 2.0-beta5
>
> Attachments: zzzzzzzzzzzzzzzzzTest.tar.gz
>
>
> Steps to reproduce (use attached Maven project):
> 1. Start your remote flume agent
> 2. Run the Maven project
> 3. Kill your remote flume agent
> 4. Press enter
> Each time you press Enter, a bunch of stacktraces should show up in your
> console, along with a line that says *log message tookXXXX* (where XXXX is
> the number of milliseconds it took for the log message to return). Notice how
> the call to log something blocks for 2 seconds in the sample output below:
> {quote}
> sent initial error message.
> kill your flume agent now and enter any key to log another message.
> ---
> sending msg
> ERROR StatusLogger Unable to create transceiver java.io.IOException: Error
> connecting to /127.0.0.1:36892
> at
> org.apache.avro.ipc.NettyTransceiver.getChannel(NettyTransceiver.java:261)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:203)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:152)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:120)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:107)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.connect(FlumeAvroManager.java:301)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.send(FlumeAvroManager.java:241)
> at
> org.apache.logging.log4j.flume.appender.FlumeAppender.append(FlumeAppender.java:90)
> at
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:102)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:402)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:383)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:386)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:344)
> at org.apache.logging.log4j.core.Logger.log(Logger.java:108)
> at
> org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:559)
> at com.globalrelay.apps.zzzzzzzzzzzzzzzzztest.App.main(App.java:26)
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:396)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:358)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:274)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> ERROR StatusLogger Unable to create transceiver java.io.IOException: Error
> connecting to /127.0.0.1:36892
> at
> org.apache.avro.ipc.NettyTransceiver.getChannel(NettyTransceiver.java:261)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:203)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:152)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:120)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:107)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.connect(FlumeAvroManager.java:301)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.send(FlumeAvroManager.java:241)
> at
> org.apache.logging.log4j.flume.appender.FlumeAppender.append(FlumeAppender.java:90)
> at
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:102)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:402)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:383)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:386)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:344)
> at org.apache.logging.log4j.core.Logger.log(Logger.java:108)
> at
> org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:559)
> at com.globalrelay.apps.zzzzzzzzzzzzzzzzztest.App.main(App.java:26)
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:396)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:358)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:274)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> ERROR StatusLogger Unable to create transceiver java.io.IOException: Error
> connecting to /127.0.0.1:36892
> at
> org.apache.avro.ipc.NettyTransceiver.getChannel(NettyTransceiver.java:261)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:203)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:152)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:120)
> at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:107)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.connect(FlumeAvroManager.java:301)
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.send(FlumeAvroManager.java:241)
> at
> org.apache.logging.log4j.flume.appender.FlumeAppender.append(FlumeAppender.java:90)
> at
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:102)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:402)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:383)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:386)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:344)
> at org.apache.logging.log4j.core.Logger.log(Logger.java:108)
> at
> org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:559)
> at com.globalrelay.apps.zzzzzzzzzzzzzzzzztest.App.main(App.java:26)
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:396)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:358)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:274)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> ERROR StatusLogger An exception occurred processing Appender
> FlumeAvroAppender
> org.apache.logging.log4j.core.appender.AppenderRuntimeException: Unable to
> write to FlumeAvro[127.0.0.1:36892,127.0.0.1:36892] at 127.0.0.1:36892
> at
> org.apache.logging.log4j.flume.appender.FlumeAvroManager.send(FlumeAvroManager.java:267)
> at
> org.apache.logging.log4j.flume.appender.FlumeAppender.append(FlumeAppender.java:90)
> at
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:102)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:402)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:383)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:386)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:344)
> at org.apache.logging.log4j.core.Logger.log(Logger.java:108)
> at
> org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:559)
> at com.globalrelay.apps.zzzzzzzzzzzzzzzzztest.App.main(App.java:26)
> log message took2079
> {quote}
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