Problem In Process Operation - Samsung WEC8500 Maintenance Manual

WEC8500/8050 Maintenance Manual
1.4

Problem in Process Operation

If a problem occurs in the process operation of the APC system, the system may not
function correctly. Since every process keeps a log record of all problems, use the
respective log information to identify the problem.
Symptoms
The system does not function correctly or some of the commands do not work.
Possible Causes
The problem occurs in process operation for the following reasons.

Core dump signal

Control signal (displays back-trace log)

Thread failure due to dead-lock or endless-loop
Solutions
1) Execute the 'show process' command to check the process 'Status'.
WEC8500# show processes
Processes Info.
Status: D - usually IO, R - Running, S - Sleep
T - Stop, X - Dead, Z - Zombie
up - Active, down - Inactive
dis - Disable
id name
-- ------
0 swmmon
1 evm
2 evmlogd
3 db
4 license
...
2) If the process status is not normal, execute the 'show processes log' command to check
whether the log information exists. If the process log information exists, execute the
'show processes log id' command to check the problem and take necessary actions.
WEC8500# show processes log id 3
Id date
backtrace
----- --------------------- ------- -----
---------------
3. 2012-08-16 22:05:31
signal
Samsung Electronics America
pid activationTime
---- -------------------
6222 2012-08-31 14:38:21
1759 2012-08-31 13:47:08
1760 2012-08-31 13:47:08
1807 2012-08-31 13:47:14
1838 2012-08-31 13:47:34
name
reason
pm
status reStart
------ ------
up(S) 0
up(S) 0
up(S) 0
down(-) 2
up(S) 0
pid signal
--------------- -------
1357 SIGTERM(15)
Version 5.1
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