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Apache/Jboss issue

vjy chin
Ranch Hand

Joined: Feb 17, 2005
Posts: 279
If this is not the appropriate forum, please move it to the right one.

We have an application. The architecture is as below

1 load balancer (apache), which redirects to 2 app servers (jboss). The site is working fine and I am able to access it fine. But sometimes, randomly the homepage takes a while (like 30-40 secs)
to load. I tried checking the logs but could not figure out why.

I used the httptraffic analyzer, fiddler to see the traffic, but it just says the request/response took 30 secs or so.

I checked the apache access logs, mod_jk.log.

My configurations are below


mod-jk.conf
-----------



-----------------------------
-------------------------------


uriworkermap.properties
------------------------

# Simple worker configuration file
#

# Mount the Servlet context to the ajp13 worker
/=loadbalancer
/*=loadbalancer


-----------------------------
-------------------------------

workers.properties
-----------------



-----------------------------
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my jboss server.xml - $JBOSS_HOME/server/default/deploy/jbossweb.sar/server.xml
-------------------


<Connector protocol="AJP/1.3" port="8009" address="${jboss.bind.address}"
redirectPort="8443" />


---------------------------------
---------------------------------


The logs from access log is below

The issue where it took time - look at the seconds column



The one after the issue


---------------------------------


Would it be a cache or timeout issue?

Any help is appreciated. Thanks.
Koen Aerts
Ranch Hand

Joined: Feb 07, 2012
Posts: 344

In the past I've had weird HTTP related performance issues and with a similar setup (Apache http, mod_jk, JBoss AS). Downloading and compiling the latest version of mod_jk fixed that for me. Not sure if that would fix your particular issue, but it might be worth the try.
vjy chin
Ranch Hand

Joined: Feb 17, 2005
Posts: 279
Thanks for the reply. I will check with the team to see if it is possible, but I dont think it would be. I am kind of stuck with the versions.

I also see this happen only when the server is not hit for sometime, so it kind of times out and re-establishes connections or atleast that is what I am thinking.

Any other suggestions. Thanks.

 
 
subject: Apache/Jboss issue