Java zeromq-从Tomcat登录时处理IOException

抱歉，我对Java还比较陌生。 我正在编写一个库，使用zeromq jeromq将日志从Java应用程序发送到Logstash

我的一个测试服务器是运行在Tomcat中的忙碌的Jenkins master。 我的库Logit将其JSON格式的日志JUL喷洒在配置好的Logstash端点列表上，以便使用PUSHPULL套接字进行一些基本的负载平衡，以提高速度

不幸的是，几天后它遇到了一个异常。Tomcat/Jenkins继续工作并将日志写入其正常文件，但Logit停止通过网络发送消息

18-Nov-2013 14:45:24 hudson.model.Run execute
INFO: EmployeeManagementSystems » Project Phase 2 branch » Int Tests » Sync Int Tests (Project - Prl) #326 aborted
java.lang.InterruptedException
        at java.lang.Object.wait(Native Method)
        at hudson.remoting.Request.call(Request.java:146)
        at hudson.remoting.Channel.call(Channel.java:714)
        at hudson.maven.ProcessCache$MavenProcess.call(ProcessCache.java:156)
        at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:815)
        at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:565)
        at hudson.model.Run.execute(Run.java:1592)
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:508)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:237)
logit:WARN IOException thrown, will try sending log again shortly.
zmq.ZError$IOException: java.nio.channels.ClosedByInterruptException
        at zmq.Signaler.send(Signaler.java:108)
        at zmq.Mailbox.send(Mailbox.java:90)
        at zmq.Ctx.send_command(Ctx.java:351)
        at zmq.ZObject.send_command(ZObject.java:364)
        at zmq.ZObject.send_activate_read(ZObject.java:217)
        at zmq.Pipe.flush(Pipe.java:284)
        at zmq.LB.send(LB.java:120)
        at zmq.Push.xsend(Push.java:64)
        at zmq.SocketBase.send(SocketBase.java:598)
        at org.jeromq.ZMQ$Socket.send(ZMQ.java:932)
        at com.stuartwarren.logit.zmq.ZmqTransport.appendString(ZmqTransport.java:115)
        at com.stuartwarren.logit.jul.ZmqAppender.publish(ZmqAppender.java:77)
        at java.util.logging.Logger.log(Logger.java:481)
        at java.util.logging.Logger.doLog(Logger.java:503)
        at java.util.logging.Logger.log(Logger.java:592)
        at hudson.model.Run.execute(Run.java:1610)
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:508)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:237)
Caused by: java.nio.channels.ClosedByInterruptException
        at java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:184)
        at sun.nio.ch.SinkChannelImpl.write(SinkChannelImpl.java:154)
        at zmq.Signaler.send(Signaler.java:106)
        ... 18 more
logit:ERROR Logit got interrupted while waiting to send failed message again.
java.lang.InterruptedException: sleep interrupted
        at java.lang.Thread.sleep(Native Method)
        at com.stuartwarren.logit.zmq.ZmqTransport.appendString(ZmqTransport.java:121)
        at com.stuartwarren.logit.jul.ZmqAppender.publish(ZmqAppender.java:77)
        at java.util.logging.Logger.log(Logger.java:481)
        at java.util.logging.Logger.doLog(Logger.java:503)
        at java.util.logging.Logger.log(Logger.java:592)
        at hudson.model.Run.execute(Run.java:1610)
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:508)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:237)
18-Nov-2013 14:45:35 hudson.model.Run execute

我使用的是来自测试6节点Cassandra集群的同一版本的库日志记录，没有问题log4j，但我想这可能只是运气好吧

我的问题是，在发送消息时，应该如何处理上述异常

我应该关闭并重新打开套接字/上下文，还是应该在Jeromq库中进行处理？也许Tomcat更有可能扔这些东西，应该在我的7月appender中处理

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谢谢。

看起来您的答案可以在这个帖子中找到。cafebabe在下面的评论中为他们的答案添加了更多信息，更直接地回答了您的问题：

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如果应用程序是多线程的，则应查找可能中断线程在通道上执行IO操作的中断调用。如果这是一个web应用程序或其他类型的托管环境，其中线程管理不像Servlet/EJB容器那样取决于应用程序，那么您应该查找线程安全冲突。另一个需要注意的地方是应用程序关闭时或使用线程池时Servlet/EJB容器！。然后注意池大小的动态管理

谢谢，但是如何检查线程安全违规？我不相信我自己在做任何多线程的事情。。。

public void appendString(final String line) {
    final String log = line.substring(0, line.length() - 1);
    if (LogitLog.isTraceEnabled()) {
        LogitLog.trace("Sending log: [" + log + "].");
    }
    try {
        socket.send(log, ZMQ.NOBLOCK);
        // Has occasionally been known to throw a java.nio.channels.ClosedByInterruptException
    } catch (IOException e) {
        LogitLog.warn("IOException thrown, will try sending log again shortly.", e);
        // Try again after sleeping for a second
        try {
            Thread.sleep(1000);
            socket.send(log, ZMQ.NOBLOCK);
        } catch (InterruptedException i) {
            LogitLog.error("Logit got interrupted while waiting to send failed message again.", i);
        } catch (IOException e2) {
            LogitLog.error("Could not send following log on the second attempt: [" + log + "].", e2);
        }
    } catch (Exception g) {
        LogitLog.error("Something threw an exception that wasn't IOException.", g);
    }
}