FAQ
Hi Guys,

I built a small storm cluster in our colo, it includes 1 nimbus, 1 zk, and
3 workers. They are fine for about one month, and today I saw that the
cluster was down. I log in the machines, and I found that daemontools(the
supervise process) is busy restarting the workers. However, the workers
process starts and exits immediately. I had to kill the daemontools, and
restart daemontools made everything back to normal.

I got a bunch of error files hs_err_pid*****.log, with top of the content
as follows:

An unexpected error has been detected by Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f224f10175c, pid=719, tid=1115601216
#
# Java VM: OpenJDK 64-Bit Server VM (1.6.0-b09 mixed mode linux-amd64)
# Problematic frame:
# V [libjvm.so+0x1f375c]
#
# If you would like to submit a bug report, please visit:
# http://icedtea.classpath.org/bugzilla
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

--------------- T H R E A D ---------------

Current thread (0x000000000072a800): JavaThread "CompilerThread1" daemon
[_thread_in_native, id=750, stack(0x00000000426eb000,0x00000000427ec000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR),
si_addr=0x0000000000000000

Did anyone see this before? I searched but didn't see any related.

Thanks for any input.
Rui

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