Good day tomcat team, Recently, we updated our tomcat version from 7.x to 8.5.x. Unfortunately, after the update, we noticed that an exception filled our log files quite fast. I am including the file, exception.txt, which includes a fragment of our console log displaying the mentioned exception.
After reading several documents related to this issue, we found that this usually happens when the backend loses a connection to the client side. So far, we haven't been able to find a proper solution. All we need is to prevent tomcat from generating this exception so many times that it fills the log files with the same exception. We tried changing the log level from WARN to SEVERE and it worked, our log files were no longer cluttered with this exception. But, we are using the tool newrelic <https://docs.newrelic.com/> which is registering the same exception. I am including the PNG file, new_relic_exception.png, which includes the evidence from New Relic. Is there a patched version that could resolve this issue? Or, is this problem generated by a missing configuration on our side? Any help will be greatly appreciated. Thank you for your time.
INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | Oct 21, 2020 1:31:25 PM org.apache.catalina.core.StandardHostValve throwable INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | WARNING: Exception Processing ErrorPage[exceptionType=java.lang.Throwable, location=/WEB-INF/common/pages/error/serverError.jsp] INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:364) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:833) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.realWriteChars(OutputBuffer.java:464) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.flushCharBuffer(OutputBuffer.java:838) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:246) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.Response.finishResponse(Response.java:443) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:325) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:166) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at java.lang.Thread.run(Thread.java:748) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | Caused by: java.io.IOException: Broken pipe INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at sun.nio.ch.FileDispatcherImpl.write0(Native Method) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at sun.nio.ch.IOUtil.write(IOUtil.java:65) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SecureNioChannel.flush(SecureNioChannel.java:144) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SecureNioChannel.write(SecureNioChannel.java:654) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1306) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:731) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SocketWrapperBase.writeBlocking(SocketWrapperBase.java:501) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.tomcat.util.net.SocketWrapperBase.write(SocketWrapperBase.java:439) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.doWrite(Http11OutputBuffer.java:623) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.http11.filters.ChunkedOutputFilter.doWrite(ChunkedOutputFilter.java:121) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.http11.Http11OutputBuffer.doWrite(Http11OutputBuffer.java:225) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.coyote.Response.doWrite(Response.java:602) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:352) INFO | jvm 1 | main | 2020/10/21 13:31:25.101 | ... 20 more
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