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Posted to dev@tomcat.apache.org by bu...@apache.org on 2009/04/24 04:32:54 UTC
DO NOT REPLY [Bug 47088] New: Default conf/server.xml needs addition
to fix constant cpu usage with isapi_redirect.dll
https://issues.apache.org/bugzilla/show_bug.cgi?id=47088
Summary: Default conf/server.xml needs addition to fix constant
cpu usage with isapi_redirect.dll
Product: Tomcat 5
Version: 5.0.23
Platform: PC
URL: http://www.coderanch.com/t/86515/Tomcat/Tomcat-Connect
or-high-cpu-usage
OS/Version: Windows Server 2003
Status: NEW
Severity: blocker
Priority: P2
Component: Catalina
AssignedTo: dev@tomcat.apache.org
ReportedBy: jwexler@mail.usa.com
CC: jwexler@mail.usa.com
See the following bbs page posted by Martin Thorpe:
http://www.coderanch.com/t/86515/Tomcat/Tomcat-Connector-high-cpu-usage
Tomcat results in massive unrelease cpu usage (100% on my machine and 25% on
Martin's machine).
This happens with the latest isapi_redirect-1.2.28.dll as well as older ones.
The following should be changed in the server.xml file that ships with Tomcat
(I would guess that this applies to Tomcat 6.x as well).
[Martin] changed this line, which was the default Tomcat shipped with:
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3"/>
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3"/>
To be this:
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3"
maxThreads="50" minSpareThreads="5" maxSpareThreads="20"
acceptCount="100" connectionTimeout="2000"/>
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DO NOT REPLY [Bug 47088] Default conf/server.xml needs addition to
fix constant cpu usage with isapi_redirect.dll
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47088
--- Comment #2 from Rainer Jung <ra...@kippdata.de> 2009-05-18 10:24:29 PST ---
Could you please check, if you have the native Tomcat connector running (aka
known as tcnative or APR connector)?
If so, which version of Tomcat and tcnative are you using, and can you please
try once, whether the problem also goes away by disabling tcnative?
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DO NOT REPLY [Bug 47088] Default conf/server.xml needs addition to
fix constant cpu usage with isapi_redirect.dll
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47088
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|Catalina |isapi
Version|5.0.23 |1.2.28
Product|Tomcat 5 |Tomcat Connectors
--- Comment #1 from Mark Thomas <ma...@apache.org> 2009-05-16 12:55:44 PST ---
The root cause is an issue with the connector and this should be addressed
there. Moving to the right product.
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DO NOT REPLY [Bug 47088] Default conf/server.xml needs addition to
fix constant cpu usage with isapi_redirect.dll
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47088
Rainer Jung <ra...@kippdata.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #3 from Rainer Jung <ra...@kippdata.de> 2009-05-18 10:38:10 PST ---
Closing ticket as the problem was originally reported against Tomcat 5.0.
I can't reproduce the problem, there's no other such report (all others have
been associated with tcnative) and 5.0 is no longer under support.
Please reopen if you can reproduce with a recent 5.5.x or 6.0.x version of
Tomcat.
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DO NOT REPLY [Bug 47088] Default conf/server.xml needs addition to
fix constant cpu usage with isapi_redirect.dll
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47088
Rainer Jung <ra...@kippdata.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|blocker |normal
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