Hello all,
Setting up a new nagios 3.2.3 install and occasionally (once in 24
hours) I'm seeing a child deadlock when calling localtime() like so:
(gdb) bt
#0 0x00000033d5edfade in __lll_lock_wait_private () from /lib64/libc.so.6
#1 0x00000033d5e8d1cd in _L_lock_1685 () from /lib64/libc.so.6
#2 0x00000033d5e8cf17 in __tz_convert () from /lib64/libc.so.6
#3 0x000000000043e23e in get_datetime_string (raw_time=, buffer=0x2aaab014feb0 ,
buffer_length=48, type=0) at utils.c:1696
#4 0x0000000000430990 in grab_datetime_macro (macro_type=7, arg1=0x0,
arg2=0x0, output=0x6998f8) at ../common/macros.c:1533
#5 0x0000000000432cbf in grab_macrox_value (macro_type=-4, arg1=0x0,
arg2=0x0, output=0x6998f8, free_macro=0x2) at ../common/macros.c:1089
#6 0x0000000000433586 in set_macrox_environment_vars (set=1) at
../common/macros.c:3166
#7 0x00000000004335bb in set_all_macro_environment_vars (set=1) at
../common/macros.c:3134
#8 0x000000000041b4c3 in run_async_service_check (svc=0x8d62560,
check_options=, latency=,
scheduled_check=1, reschedule_check=1,
time_is_valid=, preferred_time=) at checks.c:658
#9 0x000000000041d56d in run_scheduled_service_check (svc=0x8d62560,
check_options=0, latency=0.68999999999999995) at checks.c:260
#10 0x000000000042a45a in handle_timed_event (event=0x2aaab011af30) at
events.c:1257
#11 0x000000000042abe6 in event_execution_loop () at events.c:1143
#12 0x0000000000413055 in main (argc=,
argv=, env=0x7fffa0670758) at nagios.c:850
this leads to Nagios being completely frozen until I manually kill the child.
Some light Googling tells me this can happen with localtime in certain
cases, but I see no indication of other people with this issue in
Nagios.
It's a pretty standard Nagios install on CentOS 5.5 - except for the
fact I'm using the mk-livestatus event broker. We have a couple
thousand checks configured on a pretty aggressive interval.
Anyone seen this before?
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