nv-l

RE: [nv-l] nvtecia still hanging or falling behind processing TEC _ITS.rs

2004-09-15 14:40:51
Subject: RE: [nv-l] nvtecia still hanging or falling behind processing TEC _ITS.rs
From: "Edwards, JT - ESM" <JEdwards3 AT wm DOT com>
To: "'nv-l AT lists.us.ibm DOT com'" <nv-l AT lists.us.ibm DOT com>
Date: Wed, 15 Sep 2004 13:19:56 -0500
Ok I am going to switch to the non TME adapter. Second, we have no events caching in /etc/Tivoli/tec.
 
I am going to try the things both James and Jane suggested (you guys rock and have been my Netview savior for years hehe!).
 
I will report back my findings.
 
Many thanks!
 
JT
-----Original Message-----
From: owner-nv-l AT lists.us.ibm DOT com [mailto:owner-nv-l AT lists.us.ibm DOT com]On Behalf Of James Shanks
Sent: Wednesday, September 15, 2004 12:07 PM
To: nv-l AT lists.us.ibm DOT com
Subject: RE: [nv-l] nvtecia still hanging or falling behind processing TEC _ITS.rs


To figure out what is wrong you have to answer the question, "How far do we get?"

Is nvserverd is running?  ovstatus nvserverd.    Are events going to your cache file?  The default location is /etc/Tivoli/tec/cache.  If it's growing with new events, then the adapter cannot has lost contact with the server.

You aren't getting an nvserverd.log file?   Never seen that before if you are running the executable which came with IY60528.
But you could look for TEC adapter errors in nettl.  You have to format it first.
To do that you would have use "netfmt -f  nettl.LOG00 > formatted.nettl.LOG00" and then do the same for LOG01, and go looking for nvserverd entries.  Some of them will be cryptic, but the one you would want would say something about a tec_create_handle failure.  Prior to 7.1.4, that was the only place you could find adapter errors.

Another thing you should do is try running the nvcorrd trace and see whether he has a forwardall.rs ruleset registered for nvserverd. Issue "nvcdebug -n" and then "nvcdebug -d all" and go look at the nvcorrd logs.  You should see the current list of ruleset being run (nvcdebug -n) and then incoming events being processed for forwardall.rs.    When he processes them he writes a message to the log which says he is forwarding the notification to appl <pid>.  Check the <pid>.  It should be the process id (pid) for nvserverd.

Finally, you might try using the non-TME adapter just as a test and see whether that works.  But remember, they use different executables.  So for that you'd have to go back through serversetup and reconfigure the adapter so that the right daemon gets registered in ovsuf, and then you'd have to stop it and modify the tecint.conf file to enable the tracing again, because the reconfigure will wipe it out.

HTH

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group



"Edwards, JT - ESM" <JEdwards3 AT wm DOT com>
Sent by: owner-nv-l AT lists.us.ibm DOT com

09/15/2004 12:04 PM
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RE: [nv-l] nvtecia still hanging or falling behind processing TEC        _ITS.rs





Well we here at Waste Management are still hanging issues getting events to flow to TEC.
 
We are at 7.1.4 FP 01 with IY60528 patch installed.
 
I have no tracing and no signs that the nvtecia process (or subprocess) is even working. Our rules (forwardall.rs) is set on pass. We have stopped and restarted the nvserverd process several times.
 
The tecint.conf file reads as follows
 
[email protected]
TecRuleName=forwardall.rs
ServerPort=0
DefaultEventClass=TEC_ITS_BASE
Type=LCF
BufferEvents=YES
UseStateCorrelation=YES
StateCorrelationConfigURL=file:///usr/OV/conf/nvsbcrule.xml
## The following four lines are for debugging the state correlation engine
LogLevel=ALL
TraceLevel=ALL
LogFileName=/usr/OV/log/adptlog.out
TraceFileName=/usr/OV/log/adpttrc.out
## The following three lines alter nvserverd default behavior
NvserverdTraceTecEvents=YES
NvserverdPrimeTecEvents=NO
NvserverdSendSeverityTecEvents=YES
LCFINSTANCE=1

The two logfiles are not being created.
 
ummmm HELP?!
 
JT
-----Original Message-----
From:
owner-nv-l AT lists.us.ibm DOT com [mailto:owner-nv-l AT lists.us.ibm DOT com]On Behalf Of James Shanks
Sent:
Tuesday, September 14, 2004 10:11 AM
To:
nv-l AT lists.us.ibm DOT com
Subject:
Re: [nv-l] nvtecia still hanging or falling behind processing TEC_ITS.rs


I'm not aware of anyone else reporting a similar problem.    Historically, however, the adapter has always been load sensitive.

But let's clarify the issue a bit, shall we?  Are you saying that the adapter slows down  or that it hangs?  Does the heartbeat event get there eventually?  How slow is it?  Do things ever recover without your taking everything down or not?  How long does that take?  How big is this trap surge you are talking about?


There is no simple way to diagnose this issue because there is the ZCE engine in the middle, as well as the fact that nvserverd has no idea what's going on after he does tec_put_event.  As far as NetView is concerned, once that occurs, the event has been sent.  Whether it gets to the server or not is the responsibility of the code in the TEC EEIF library. You can use the conf file entry NvserverdTraceTecEvents=YES, or the corresponding environment variable, to get an nvserverd.log, to see whether nvserverd has given the event to the adapter in a timely fashion.  Then you would have to check the  adapter's cache file, by default /etc/Tivoli/tec/cache, and see whether it is caching events.  It will do that if communications with the server hiccup.    But it should recover from that automatically.  When communication is lost, it tries again on every subsequent event.   If the cache isn't growing, and nvserverd has logged the event, then the problem is internal to the TEC code.  To go deeper,  you'd have to get the TEC folks involved.  


They might want you to get the java adapter traces mentioned in the conf file, or they might want a trace of the internals of the adapter library.  For that you'd have to obtain  a special diagnosis file from them, called ".ed_diag_conf"  to hook that in by a special entry in the conf file.   But  then they'd have to read the traces.   And all that would require that  you open a call to Support.  


James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group


"Van Order, Drew \(US - Hermitage\)" <dvanorder AT deloitte DOT com>
Sent by: owner-nv-l AT lists.us.ibm DOT com

09/14/2004 10:22 AM
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[nv-l] nvtecia still hanging or falling behind processing TEC_ITS.rs







Hi all,

 

After patching 7.1.4 FP01 with the latest efix to fix nvcorrd/nvtecia hanging or stalling, we find it's still happening. It mainly starts when we get a surge of Cisco syslog traps from devices. The only piece not keeping up is the NV to TEC integration; demandpolls are fine and events are moving in the Event Browser. TEC_ITS only passes traps on, we do no other processing in the ruleset. TEC events from sources outside NV are not impacted. We send an hourly Interface Down trap via cron to serve as a heartbeat. When it misses the second one in a row (as seen at TEC), we cycle NV and it's OK again. MLM is not an option for our environment. Is anyone else struggling with this?

 

Thanks--Drew

 
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