Rainer,

We upgraded mod_jk to 1.2.19 and we are still getting the same error in
mod_jk.

[Tue Dec 19 11:35:36 2006] [31691:0000] [warn]
ajp_get_endpoint::jk_ajp_common.c (2258): Unable to get the free endpoint
for worker myWorker from 1 slots
[Tue Dec 19 11:35:36 2006] [31691:0000] [info]
ajp_get_endpoint::jk_ajp_common.c (2272): can't find free endpoint
[Tue Dec 19 11:35:36 2006] myWorker gorgon 0.000099
[Tue Dec 19 11:35:36 2006] [31691:0000] [info] jk_handler::mod_jk.c (1986):
Service error=0 for worker=myWorker

I would really apperciate if anyone could help me on this.

Shekar

On 12/17/06, Shekar Tippur <ctippur@(protected):
>
> Hello,
>
> Thanks for replying back.
>
> I cannot see any specal requests but there maybe high load. I can see 193
> active threads.
>
> We are in the process of upgrading mod_jk version to 1.2.19.
>
> Here is some of the information you wanted. Please let me know if you need
> more information.
>
> cat /proc/version
>
> Linux version 2.6.9-34.ELsmp (bhcompile@(protected)
> version 3.4.5 20051201 (Red Hat 3.4.5-2 ))
>
>
> worker.properties
>
> worker.list=jkstatus,consWorker,myWorker
>
> # Configure Load Balancer status manager.
>
> worker.jkstatus.type=status
>
> worker.consWorker.port=8009
> worker.consWorker.host=localhost
> worker.consWorker.type=ajp13
> worker.consWorker.socket_timeout=120
>
> # Define first worker for failover
> worker.myWorker.port=8010
> worker.myWorker.host=localhost
> worker.myWorker.type=ajp13
> worker.myWorker.socket_timeout=120
>
>
>
> apache_mod_jk.conf file
>
>
> # conf/include/apache_mod_jk.conf
> # global settings files for the mod jk connector
>
> LoadModule jk_module libexec/apache_mod_jk.so
>
> # Where to find workers.properties
> JkWorkersFile /home/apache/conf/apache/mod_include/worker.properties
>
> # Where to put jk logs
> JkLogFile logs/apache/mod_jk.log
>
> # Set the jk log level [debug/error/info]
> JkLogLevel info
>
> # Select the log format
> JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
>
> # JkRequestLogFormat set the request format
> JkRequestLogFormat "%w %V %T"
>
> # JkOptions indicate to send SSL KEY SIZE,
> JkOptions +ForwardURICompat -ForwardDirectories
>
> # Configure Load Balancer status manager.
>
> #JkWorkerProperties worker.jkstatus.type=status
>
> # status for later load balancing
>
> <Location /jkmanager/>
>      JkMount /jkstatus/*
>      Order deny,allow
>      Deny from all
>      Allow from 127.0.0.1
> </Location>
>
> JkMount /jkmanager/* jkstatus
>
> On 12/16/06, Rainer Jung <rainer.jung@(protected):
> >
> > Hi,
> >
> > this looks strange. Could you please post your config and give a couple
> > of details about your environment (OS+Version). Is there any pattern
> > related to the problem (special requests, high load, ...)?
> >
> > It would be really good, if you could update mod_jk to 1.2.19 or 1.2.20
> > which will most likely be available middle of next week.
> >
> > Regards,
> >
> > Rainer
> >
> > Shekar Tippur schrieb:
> > > Hello
> > >
> > > We are getting unable to get the free endpoint and eventually
> > resulting
> > > in a 500 (internal server error).
> > >
> > > We are using apache 1.3.37 and mod_jk version is 1.2.15. Due to many
> > > reasons,
> > > we are not in a position to upgrade wither of these packages.
> > >
> > > [Fri Dec 08 01:34:09 2006] [18477:0000] [warn]
> > > ajp_get_endpoint::jk_ajp_common.c (2138): Unable to get the free
> > > endpoint for worker myWorker from 1 slots [Fri Dec 08 01:34:09 2006]
> > > [18477:0000] [info] ajp_get_endpoint::jk_ajp_common.c (2152): can't
> > > find free endpoint [Fri Dec 08 01:34:09 2006] [18477:0000] myWorker
> > > 0.000088
> > >
> > > Under these situations, we also see that either jboss threads are
> > > processing
> > > for a long time OR a particular thread is idle for a relatively long
> > time.
> > >
> > > I would really appreciate if someone can explain why this particular
> > error
> > > occurs and how to remediate the problem. Currently we are restarting
> > both
> > > jboss and apache but we are not able to get to the root cause of the
> > > problem.
> > >
> > > People who have got the same error earlier have suggested that we need
> > > to increase the cachesize OR the connection_pool_size of the worker.
> > >
> > > but mod_jk documentation says that it is not recommended to use
> > > cachesize more than 1 for apache version 1.3.x.
> > >
> > > I would really appreciate if anyone can suggest a remediation for this
> > > issue.
> > >
> > > Shekar
> > >
> > > -----------------
> > > cachesize
> > >
> > > This directive has been deprecated since 1.2.16.
> > > Cachesize defines the number of connections made to the AJP backend
> > > that are maintained as a connection pool. It will limit the number of
> > > those connection that each web server child process can make.
> > >
> > > Cachesize property is used only for multi threaded web servers such as
> > > Apache 2.0 (worker), IIS and Netscape. The cachesize property should
> > > reflect the number of threads per child process. JK will discover the
> > > number of threads per child process on Apache 2 web server with
> > > worker-mpm and set its default value to match the ThreadsPerChild
> > > Apache directive. For IIS the default value is 10. For other web
> > > servers this value has to be set manually.
> > >
> > > Do not use cachesize with values higher then 1 on Apache 2.x prefork
> > or
> > > Apache 1.3.x!
> > >
> > > ---------------
> > >
> > > Shekar
> > >
> >
> > ---------------------------------------------------------------------
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> >
> >
>