How to configure location of vfs nestedjar

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 5.x

Issue

  • I have to run two jboss application servers on a Linux container. I want to configure the location of the nestedjar-files for both jboss application server so that they are different are different. Instead of /var/tmp for both jboss server I want to have /var/tmp/jboss1 and /var/tmp/jboss2 for the nestedjar-files. How can I configue that?
  • Regarding nestedjarNNNN.tmp files appearing in /tmp directory, is it possible to configure JBoss to make it to create them in a specific location?
  • I have noticed a huge memory consumption in our Jboss instances which is related to a known Virtual File System (VFS) native memory leak . Having opted to use the JVM option -Djboss.vfs.forceVfsJar=true , JBoss is storing the “nestedjar*.tmp files in the /tmp server path. I would like to know if it is possible to change the path the files are stored?

Resolution

  • The location of nestedjar is determined by  the system property -Djava.io.tmpdir which is /tmp by default.

  • If an instance is started with a custom value for -Djava.io.tmpdir, then it should change the location of the nestedjar.

  • To use the location of jboss.server.temp.dir as the destination of the nestedjar* files, set the following system property :

 -Djboss.server.temp.dir.overrideJavaTmpDir=true

Root Cause

  • The location of the nestedjar*.tmp files defaults to java.io.tmpdir
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