all,
We are running tomcat 6.0.14 (jdk 1.6.03) on Windows server with NIO
connector. After some time, one of the thread starts using 50% of the cpu and
that thread never stops serving.I was able to match the thread id from process
explorer with nid of jstack thread dump and this is the jstack thread dump
taken at different intervals. any ideas on whats hapeping will be helpful.
thanks
dan
dump 1 at 0 mintues
http-8080-exec-5" daemon prio=6 tid=0x308d2400 nid=0x167c runnable
[0x323ef000..0x323efb18]
java.lang.Thread.State: RUNNABLE
at
org.apache.coyote.http11.InternalNioOutputBuffer$SocketOutputBuffer.doWrite(InternalNioOutputBuffer.java:794)
at
org.apache.coyote.http11.filters.ChunkedOutputFilter.doWrite(ChunkedOutputFilter.java:126)
at
org.apache.coyote.http11.filters.GzipOutputFilter$FakeOutputStream.write(GzipOutputFilter.java:164)
at java.util.zip.GZIPOutputStream.finish(GZIPOutputStream.java:95)
at
org.apache.coyote.http11.filters.GzipOutputFilter.end(GzipOutputFilter.java:122)
at
org.apache.coyote.http11.InternalNioOutputBuffer.endRequest(InternalNioOutputBuffer.java:396)
at
org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:1080)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.finish(Response.java:305)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:276)
at
org.apache.catalina.connector.Response.finishResponse(Response.java:486)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:287)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:887)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:696)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2009)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
dump 2 at 5 minutes
"http-8080-exec-5" daemon prio=6 tid=0x308d2400 nid=0x167c runnable
[0x323ef000..0x323efb18]
java.lang.Thread.State: RUNNABLE
at
org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(InternalNioOutputBuffer.java:612)
- locked <0x178afd28> (a org.apache.coyote.http11.InternalNioOutputBuffer)
at
org.apache.coyote.http11.InternalNioOutputBuffer.access$000(InternalNioOutputBuffer.java:44)
at
org.apache.coyote.http11.InternalNioOutputBuffer$SocketOutputBuffer.doWrite(InternalNioOutputBuffer.java:794)
at
org.apache.coyote.http11.filters.ChunkedOutputFilter.doWrite(ChunkedOutputFilter.java:126)
at
org.apache.coyote.http11.filters.GzipOutputFilter$FakeOutputStream.write(GzipOutputFilter.java:164)
at java.util.zip.GZIPOutputStream.finish(GZIPOutputStream.java:95)
at
org.apache.coyote.http11.filters.GzipOutputFilter.end(GzipOutputFilter.java:122)
at
org.apache.coyote.http11.InternalNioOutputBuffer.endRequest(InternalNioOutputBuffer.java:396)
at
org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:1080)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.finish(Response.java:305)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:276)
at
org.apache.catalina.connector.Response.finishResponse(Response.java:486)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:287)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:887)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:696)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2009)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
dump 3 at 10 minutes
"http-8080-exec-5" daemon prio=6 tid=0x308d2400 nid=0x167c runnable
[0x323ef000..0x323efb18]
java.lang.Thread.State: RUNNABLE
at
org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(InternalNioOutputBuffer.java:612)
- locked <0x178afd28> (a org.apache.coyote.http11.InternalNioOutputBuffer)
at
org.apache.coyote.http11.InternalNioOutputBuffer.access$000(InternalNioOutputBuffer.java:44)
at
org.apache.coyote.http11.InternalNioOutputBuffer$SocketOutputBuffer.doWrite(InternalNioOutputBuffer.java:794)
at
org.apache.coyote.http11.filters.ChunkedOutputFilter.doWrite(ChunkedOutputFilter.java:126)
at
org.apache.coyote.http11.filters.GzipOutputFilter$FakeOutputStream.write(GzipOutputFilter.java:164)
at java.util.zip.GZIPOutputStream.finish(GZIPOutputStream.java:95)
at
org.apache.coyote.http11.filters.GzipOutputFilter.end(GzipOutputFilter.java:122)
at
org.apache.coyote.http11.InternalNioOutputBuffer.endRequest(InternalNioOutputBuffer.java:396)
at
org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:1080)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.finish(Response.java:305)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:276)
at
org.apache.catalina.connector.Response.finishResponse(Response.java:486)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:287)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:887)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:696)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2009)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
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