Re: [NV-L] Netview Event Browser Hangs

[James Shanks <jshanks@us.ibm.com>]

I would undo your last change, turning off the traps from Openwave, and see whether things return to normal.
As I said in my last post, it sounds to me like you have flooded the box.

As for the rest, I am very PUZZLED by this description:
>>I can see lot of events in my trapd.log file, but nvevents show blank. If i do ovstop and ovstart i can see the events through nvevents, but itz not getting refreshed when i see through display events of Event History.

(1) nvevents starts working if you restart which daemons? All of them? Just trapd? That would be proof to me that the daemons get overloaded. By restarting trapd, you cause him to throw away all the events in his queue and start over.

(2) Events History is a completely different animal from Events. It does not refresh automatically. You must pull down the Query button periodically and manually cause it to refresh. It is not meant to be dynamic but rather a short-term analysis tool for the most recent events.

If you want to test nvevents, I would try using the event command from the command line,
event -h test1
This will generate three events,
(1) netmon-related application connected to trapd (APUP_EV)
(2) a dummy Node Up event for a nonexistent host called "test1"
(3) netmon-related application has disconnected from trapd (APDN_EV)

You will want to issue the command twice because trapd buffers his output and does not write the last event to his log until the next one arrives. That can be changed in 7.1.5 using an environment variable but not in 7.1.4.

The basic NetView events you are looking for are generated by netmon. If you want to see what he is doing you should turn on the netmon trace (netmon -M -1) and examine the netmon.trace in /usr/OV/log. Or issue one of the dozen or more netmon action commands (netmon -a <number>) which get written to the same place. See the man pages for suggestions.

The Layer 2 events are generated by ITSA and I know nothing about troubleshooting that. I do know that it keeps topology in memory only and must rediscover your Layer 2 network afresh every time you restart it, and in some networks that can take a very long time. Poor performance by ITSA in large networks is one reason why IBM went to Precision IP for the future direction.

HTH,


James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Network Availability Management
Network Management - Development
Tivoli Software, IBM Corp
"sudha g" <sudha.unix@gmail.com>

"sudha g" <sudha.unix@gmail.com>
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05/28/2007 06:19 AM

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Subject	Re: [NV-L] Netview Event Browser Hangs

James,
 
I have installed Netview Server 7.1.4 and no patches installed in Aix 5.2.
I'm using the forwardall.rs as the default ruleset.
 
I can see lot of events in my trapd.log file, but nvevents show blank. If i do ovstop and ovstart i can see the events through nvevents, but itz not getting refreshed when i see through display events of Event History. 
 
bash-2.05b# cat /usr/OV/log/trapd.log | grep node
bash-2.05b# cat /usr/OV/log/trapd.log | grep network
bash-2.05b# cat /usr/OV/log/trapd.log | grep interface
 
I didn't get no results for the above commands from trapd.log, but lot of events i can see from my Openwave Messaging Application

1180346657 3  Mon May 28 15:34:17 2007 10.18.12.12                A popEvent 6 3 2 args:  [1] private.enterprises.2415.1.1.1.2.2.1 (Integer): 1
1180346657 3  Mon May 28 15:34:17 2007 10.18.12.13               A popEvent 6 3 2 args:  [1] private.enterprises.2415.1.1.1.2.2.1 (Integer): 1
1180346657 3  Mon May 28 15:34:17 2007 10.17.12.28               A popEvent 6 3 2 args:  [1] private.enterprises.2415.1.1.1.2.2.1 (Integer): 1 
1180346657 3  Mon May 28 15:34:17 2007 10.17.12.29               A popEvent 6 3 2 args:  [1] private.enterprises.2415.1.1.1.2.2.1 (Integer): 1

I don't have any problem in my name resolution. The events i saw above can be seen in the TEC console only after restarting ovstop and ovstart daemons. There will be no events in TEC fo longtime unless i do a next restart. 
 
This problem happens only after configuring our other Openwave Messaging Servers to send traps to Netview and we also applied a patch for Tivoli Business Systems Manager Event Enablement.3.1.0-FP0002
 
Thanks & Regards,
Sudhakar Gandhi

 
On 5/26/07, James Shanks <jshanks@us.ibm.com> wrote:

OK, so this is UNIX. What platform, and what version of NetView? If not 7.1.5, what fixes are installed?

Are you using the forwardall.rs ruleset as the default? You can try turning on tracing in nvcorrd to see what is happening to your events, with the command
nvcdebug -d all

Then you can tell in the nvcorrd logs whether events are being processed.

But really these kinds of things are very difficult to diagnose remotely. Is this a new system? When did you start having the problem? Could your name resolution be a problem? All events get resolved three times, once by trapd for the trapd.log, once by nvcorrd if the ruleset requires it (though forwardall usually does not), and again by nvserverd for display by nvevents.

HTH,

James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Network Availability Management
Network Management - Development
Tivoli Software, IBM Corp
"sudha g" <sudha.unix@gmail.com>


"sudha g" <sudha.unix@gmail.com>
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05/24/2007 03:43 PM
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Subject	[NV-L] Netview Event Browser Hangs


Hi,

My Netview Event Browser suddenly hangs and i have restarted nvcorrd,nvserverd and actionsvr .
I did ovstop and ovstart too, but no luck. I cannot see any events in the Event browser and it is blank, when i click the Event History icon, it got hanged!

Please help me out in fixing this issue.

Thanks,
Sudhakar Gandhi_______________________________________________
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