https://issues.apache.org/bugzilla/show_bug.cgi?id=56296
Bug ID: 56296
Summary: AjpNioProcessor throws
java.nio.BufferOverflowException
Product: Tomcat 7
Version: 7.0.52
Hardware: All
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
We are seeing the following sporadic exceptions in catalina.out:
Mar 21, 2014 2:42:13 AM org.apache.coyote.ajp.AjpNioProcessor process
SEVERE: Error processing request
java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:183)
at
org.apache.coyote.ajp.AjpNioProcessor.output(AjpNioProcessor.java:296)
at
org.apache.coyote.ajp.AbstractAjpProcessor$SocketOutputBuffer.doWrite(AbstractAjpProcessor.java:1195)
at org.apache.coyote.Response.doWrite(Response.java:520)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:408)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
at
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:359)
at
org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:309)
at
org.apache.catalina.connector.Response.finishResponse(Response.java:510)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:435)
at
org.apache.coyote.ajp.AjpNioProcessor.process(AjpNioProcessor.java:177)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1721)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1679)
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:744
We have correlated these with the following error in our application log:
2014-03-21 02:42:13,753 (tomcat-exec-13) ERROR [xxxxx.StreamingManagerImpl]
Error streaming document [/xxxxxxx/responsible-investment-report-2011.pdf]
ClientAbortException: java.io.IOException: Broken pipe
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:413)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:366)
at
org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:438)
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:426)
at
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:91)
at
org.apache.catalina.servlets.DefaultServlet.copyRange(DefaultServlet.java:2032)
at
org.apache.catalina.servlets.DefaultServlet.copy(DefaultServlet.java:1871)
at
org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.java:959)
at
org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:409)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
We want to understand whether the error is benign and simply caused by a client
dropping connection mid-download. Or if it's the other way round - for example
a slow network download speed to the client causes the buffer overflow and the
connection drop.
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