0001053: servlet lock issue

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Category

Severity

Reproducibility

Date Submitted

Last Update

0001053

[Resin]

minor

always

04-17-06 07:34

06-27-06 10:07

Reporter

ferg

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.0.18

Summary

0001053: servlet lock issue

Description

(rep by Xu Guanyan)

   I have a very busy site run on resin-3.0.18, very very busy,about
600-700 hits per second. now i encounted a problem. the CPU's usage is
about 99% now, only 1% idle,i use jmx to dump all the threads, and see
something like this, about 200 threads are doing this thing. what are they
doing? what should i do to avoid this? i have no idea.

"resin-tcp-connection-172.18.16.32:80-152179" Id=2493 in BLOCKED on
lock=com.caucho.server.dispatch.ServletConfigImpl@1828374
     owned by resin-tcp-connection-172.18.16.32:80-151515 Id=1819
    at
com.caucho.server.dispatch.ServletConfigImpl.createServletChain(ServletConfigImpl.java)

    at
com.caucho.server.dispatch.ServletManager.createServletChain(ServletManager.java:175)

    at
com.caucho.server.dispatch.ServletMapper.mapServlet(ServletMapper.java:325)
    at
com.caucho.server.webapp.Application.buildDispatchInvocation(Application.java:1885)

    at
com.caucho.server.webapp.Application.buildForwardInvocation(Application.java:1828)

    at
com.caucho.server.webapp.ApplicationContainer.buildForwardInvocation(ApplicationContainer.java:780)

    at
com.caucho.server.webapp.Application.getRequestDispatcher(Application.java:1933)

    at
com.caucho.server.connection.AbstractHttpRequest.getRequestDispatcher(AbstractHttpRequest.java:2016)

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Issue History
Date Modified	Username	Field	Change
04-17-06 07:34	ferg	New Issue
06-27-06 10:07	ferg	Assigned To	=> ferg
06-27-06 10:07	ferg	Status	new => closed
06-27-06 10:07	ferg	Resolution	open => fixed
06-27-06 10:07	ferg	Fixed in Version	=> 3.0.20

Mantis 1.0.0rc3[^]

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