Is it safe to set java.io.tmpdir to <INSTANCE>/tmp in JBoss

Question

Hi

We have multiple instances of JBoss 5.1.0 running on the same physical server, using multiple instances of the same VM:

<JBOSS_HOME>/server/instance1
<JBOSS_HOME>/server/instance2

with the appropriate configuration to avoid port clashes etc.

For each instance there is the tmp folder:

<JBOSS_HOME>/server/instance1/tmp
<JBOSS_HOME>/server/instance2/tmp

To keep things separate, is it ok to set the java.io.tmpdir variable to <JBOSS_HOME>/server/<INSTANCE>/tmp?

Thanks in advance

Rich

Answer 1

Probably, but JBoss might be assuming it has full control over the contents of that directory. It might be a good idea to create a directory under <INSTANCE>/tmp, and set java.io.tmpdir to that, it would likely reduce the risk of any collisions.