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

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

3.0.20

Product Version

3.0.18

Product Build

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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