session timeout is not in time

[nimo22]

In web.xml I declared a session timeout of 1 minute:

<session-config>

   <session-timeout>1</session-timeout>

</session-config>

When logging my session creation and my destruction by a @WebListener (ServletListener), I get this log:

11:22:18,105 INFO  [bean.MyServletListener] (http--0.0.0.0-8080-1) HttpSessionEvent: session created !

11:22:18,106 INFO  [bean.MyServletListener] (http--0.0.0.0-8080-1) session org.apache.catalina.session.StandardSessionFacade@32584a30

11:22:18,106 INFO  [bean.MyServletListener] (http--0.0.0.0-8080-1) session.getMaxInactiveInterval 60

11:22:18,107 INFO  [bean.MyServletListener] (http--0.0.0.0-8080-1) session.isNew true

11:22:18,108 INFO  [bean.MyServletListener] (http--0.0.0.0-8080-1) session.getCreationTime():11:22:18 a.m.

11:22:18,111 INFO  [bean.Test] (http--0.0.0.0-8080-1) session org.apache.catalina.session.StandardSessionFacade@32584a30

11:23:36,438 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) HttpSessionEvent: session destroyed !

11:23:36,440 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) session org.apache.catalina.session.StandardSessionFacade@32584a30

11:23:36,442 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) session.getMaxInactiveInterval 60

11:23:36,443 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) session.isNew false

11:23:36,444 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) session.getCreationTime(): 11:22:18 a.m.

11:23:36,446 INFO  [bean.MyServletListener] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) session destroyTime: 11:23:36 a.m.

You see, it is not exactly one minute (It is not matter what time I set - the session timeout occurs always later than my defined timeout.)

Between the logs, there is absolutely no user interaction, so getMaxInactiveInterval is appropriate.

Is that normal, that the session timeout happend a while after one minute?

I do not know, if jboss does set any other timeouts in background. (However, I setup hornetq, I do not know, if this is the reason.)

Does anyone know why such things can occur?

I did remeber in jboss 6 the session timeout is occured exactly at time!

[nickarls]

I think there is a cleanup thread that runs every now and then and picks up the expired ones.

[nimo22]

Where is the settings for the cleanup thread? I cannot find it in standalone.xml.

Maybe, there is a way to set up the time intervall of the cleanup thread?

[nickarls]

http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html speaks of a processExpiresFrequency , haven't checked if it applies for jbossweb

[nimo22]

Yes, you are right!! I guess this is the setting:

checkInterval (which defaults to 60 seconds).

But the big question is:

How can I set this tomcat-specific-property in jboss 7?

Would this be enough in standalone.xml? :

<system-properties>

        <property name="checkInterval" value="30"/>

</system-properties>

[nickarls]

You could of course check out the JBossWeb sources and see who calls the expire and isValid methods on the session implementation. Checking with the  guys on the JBossWeb forum is another option

[nimo22]

yes, I guess you are right. I have to use jboss-web-options as such things are not directly configuarble by jboss-as.