informix 会down， log 如下：

cz_dd

08:02:00  Checkpoint Completed:  duration was 1 seconds.
08:02:17  listener-thread: err = -25582: Network connection is broken.
System error = 9.
08:02:20  listener-thread: err = -27001: Read error occurred during connection a
ttempt.

08:02:33  mt.c, line 5977, thread 10, proc id 489, Invalid Mutex Type.
08:02:33  invoke_alarm(): /bin/sh -c '/usr/informix/log_full.sh 5 6 "Internal Su
bsystem failure: 'MT'" "mt.c, line 5977, thread 10, proc id 489, Invalid Mutex T
ype." '
08:02:33  invoke_alarm(): mt_exec failed, status -1, errno 0
08:02:33    PANIC: Attempting to bring system down