Environment
Vibe 4.0.x
Situation
When upgrading a large Vibe system from 3.4 to 4hp4, during the full reindex a problem can happen with the kernel memory being all used up.
Interestingly enough the java memory where the reindex was running was fine.
Interestingly enough the java memory where the reindex was running was fine.
Resolution
Recommended corrective action is to run the following command at a terminal prompt logged in as root.
sync && echo 1 > /proc/sys/vm/drop_caches
sync && echo 1 > /proc/sys/vm/drop_caches
Cause
We are aware of this system characteristic, however there is no work (software changes) needed for this phenomena.