DEVMON stops working every now and then

[thorsten.erdmann (at) daimler.com]

Hello

some time ago I already talked about devmon stops working when a monitored 
device ist not responding. Now I saw it has nothing to do with non 
responsive devices.
Devmon stops working at irregular intervals. I set Devmon to verbose and 
looked at the devmon log. I saw that there are simply no more messages 
when it stops working (see below). No error messages - nothing. None in 
the devmon log nor in the syslog.

If I do a "ps -ef" I see all devmon processes running:

[root (at) s068a300 devmon]# ps -ef |grep devmon
hobbit   10211     1  0 Nov09 ?        00:10:07 devmon[master]
hobbit   10214 10211  0 Nov09 ?        00:00:22 devmon
hobbit   10215 10211  0 Nov09 ?        00:00:21 devmon
hobbit   10217 10211  0 Nov09 ?        00:00:22 devmon
hobbit   10218 10211  0 Nov09 ?        00:01:52 devmon
hobbit   10219 10211  0 Nov09 ?        00:00:21 devmon
hobbit   10220 10211  0 Nov09 ?        00:01:51 devmon
hobbit   10221 10211  0 Nov09 ?        00:01:52 devmon
hobbit   10222 10211  0 Nov09 ?        00:00:00 devmon
hobbit   10223 10211  0 Nov09 ?        00:00:00 devmon
root     20447  3611  0 14:47 pts/1    00:00:00 grep devmon

Any idea how I can find out why devmon stops working and what the 
processes do when they are stuck. If I send a SIGTERM to the devmon master 
process, it stops all other processe, so it looks it is responding to 
signals as it should.

BTW.: has anyone a devmon startup/shutdown script which works on SuSE EL.

Thorsten Erdmann

Attachement:
Here are the last few lines of the devmon log

[09-11-10 (at) 10:52:21] Performing test logic
[09-11-10 (at) 10:52:21] Done with test logic
[09-11-10 (at) 10:52:21] Sending messages to display server
[09-11-10 (at) 10:52:21] Done sending messages
[09-11-10 (at) 10:52:21] Sleeping for 59 seconds.
[09-11-10 (at) 10:53:20] Starting snmp queries
[09-11-10 (at) 10:53:20] Getting device status from hobbit at localhost:1984
[09-11-10 (at) 10:53:20] Querying u068usv020a1 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:53:20] Querying u068usv020a2 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:53:20] Querying u068usv020b1 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:53:20] Querying u068usv020b2 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:53:20] Querying u068usv110111 for tests power,temperature
[09-11-10 (at) 10:53:20] Querying u068usvnw1111 for tests power,temperature
[09-11-10 (at) 10:53:20] Querying u068usvnw1112 for tests power,temperature
[09-11-10 (at) 10:53:20] Querying u068usvnw1211 for tests power,temperature
[09-11-10 (at) 10:53:21] Performing test logic
[09-11-10 (at) 10:53:21] Done with test logic
[09-11-10 (at) 10:53:21] Sending messages to display server
[09-11-10 (at) 10:53:21] Done sending messages
[09-11-10 (at) 10:53:21] Sleeping for 59 seconds.
[09-11-10 (at) 10:54:20] Starting snmp queries
[09-11-10 (at) 10:54:20] Getting device status from hobbit at localhost:1984
[09-11-10 (at) 10:54:20] Querying u068usv020a1 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:54:21] Querying u068usv020a2 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:54:21] Querying u068usv020b1 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:54:21] Querying u068usv020b2 for tests 
battery,powerin,power,diag,temperature,msgs
[09-11-10 (at) 10:54:21] Querying u068usv110111 for tests power,temperature
[09-11-10 (at) 10:54:21] Querying u068usvnw1111 for tests power,temperature
[09-11-10 (at) 10:54:21] Querying u068usvnw1112 for tests power,temperature
[09-11-10 (at) 10:54:21] Querying u068usvnw1211 for tests power,temperature

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