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Posted to dev@tomcat.apache.org by bu...@apache.org on 2003/10/15 05:02:25 UTC
DO NOT REPLY [Bug 21763] -
Tomcat 4.1.24 hangs under heavy load using http connector.
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21763
Tomcat 4.1.24 hangs under heavy load using http connector.
jswap@yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
------- Additional Comments From jswap@yahoo.com 2003-10-15 03:02 -------
I am running Tomcat v4.1.28 (which supposedly contains the fix to this bug,
according to the previous comment), and am still getting this hanging
problem. I have tried configuring my connector two different ways, but get
the hanging problem using both. When I set the connector's maxProcessors to "-
1", during heavy load I see this in cataline.out:
"SEVERE: All threads are busy, waiting. Please increase maxThreads or check
the servlet status200 200"
Once this error occurs, the server begins hanging and does not seem to recover
until I restart tomcat. A side note is that the number in the error message
is 200. This concerns me because I believe a value of -1 is supposed to
mean "unlimited".
I also tried setting the maxProcessors to 1000. Under heavy load, I saw this
error in catalina.out:
"SEVERE: All threads are busy, waiting. Please increase maxThreads or check
the servlet status1000 1000"
Again, I had to restart Tomcat to recover from the hanging problem.
BTW, when I say "heavy load", I mean about 10 pages per second. However,
since we run on a dual Xeon, uptime reports a load of only about 0.5 so the
CPU is definitely not the limiting factor.
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