Hi JM,
We experienced similar issues with FST services silently failing on Cent6 last December with a 2.6.32-696 kernel on Cent6.
The FST had been stable for many months, was under no significant load, and resource contention was not applicable, but suddenly began failing - often within minutes of a restart, leading to the thread:
In our case, a kernel change at the time caused the havoc. Reverting to an older kernel immediately resolved the issue, and rebooting to the problematic kernel reproduced the issue immediately.
We subsequently moved to a newer kernel and the issue did not return.
The kernel we were experiencing the issue on (2.6.32-696.30.1.el6.x86_64) appears roughly similar vintage to the one you reported (2.6.32-696.10.3.el6.x86_64)
We reverted at the time to kernel-2.6.32-696.16.1.
Currently running 2.6.32-754.17.1.el6.x86_64 on that system since Aug
Pete