There is no damage if that is what you mean. But stopping nvcorrd means that
his in-memory cache of recent events is destroyed. If you left the event
windows up while you did this, then you perhaps won't notice anything. But if
you start a new window after that it won't even show the last event you had
before the restart. Just something to be aware of. Each restart of nvcorrd
means that the event cache gets rebuilt and old ones are gone as far as the
display is concerned. Also, if you were running any pass-on-match or
reset-on-match rulesets then they no longer have any old events to match with.
It all starts over.
I would do a netstat -a, and a netstat -an, before you restart nvcorrd next time
since Support will want to see if there is a socket holdup. And I would turn on
the nvcorrd trace, nvcdebug -d all, while you wait, so there is some record of
what nvcorrd was doing when he hung. And finally, I think Level 2 will probably
recommend a dbxprof (a utility they provide) to get a call stack of nvcorrd when
it is hung. That's assuming that nvcorrd is the real problem. Notice that when
you stopped him, both nvserverd and actionsvr stopped as well. That's why
someone has to look at this.
And it may still turn out to be an AIX socket problem.
James Shanks
Tivoli (NetView for UNIX) L3 Support
Gord Michaels <gord_michaels AT HOTMAIL DOT COM> on 08/06/99 09:37:17 AM
Please respond to Discussion of IBM NetView and POLYCENTER Manager on NetView
<NV-L AT UCSBVM.UCSB DOT EDU>
To: NV-L AT UCSBVM.UCSB DOT EDU
cc: (bcc: James Shanks/Tivoli Systems)
Subject: Re: Events stop coming into Events Display...
Hello James.
I am using AIX 4.2.1 and Netview 5.1.1.
I will contact support.
Right now, when the problem occurs, I do the following:
1. ovstop nvcorrd - this will also stop actionsvr and nvserverd.
2. ovstart nvcorrd - will start nvcorrd but may not restart actionsvr
and nvserverd.
3. ovstart - this will restart actionsvr and nvserverd.
This seems to temporarily solve the problem without shutting down the
Netview Server completely.
Do you see any potential problems with this temporary procedure?
Sincerely,
Gord Michaels.
>From: James Shanks <James_Shanks AT TIVOLI DOT COM>
>Reply-To: Discussion of IBM NetView and POLYCENTER Manager on NetView
> <NV-L AT UCSBVM.ucsb DOT edu>
>To: NV-L AT UCSBVM.ucsb DOT edu
>Subject: Re: Events stop coming into Events Display...
>Date: Fri, 6 Aug 1999 09:20:55 -0400
>
>Folks -
>
>What operating system are we talking about here? AIX? Solaris? NT? Let's
>make
>sure we are comparing apples to apples.
>
>The only bug I know of in this area was on Solaris 2.5.1 and we fixed that.
> It
>was easier than waiting for SUN to fix it, because it really is there
>problem,
>and they fixed it in 2.6. If you are on Solaris 2.5.1 and cannot go to
>Solaris
>2.6, where SUN has fixed a host of their other problems, then I urge you
>to
>call Support and get a new copy of trapd for Solaris if you cannot wait for
>5.1.2.
>
>But otherwise, having the events display stop updating is not normal
>behavior
>and you need to call Support and get some help in diagnosing the problem.
>Otherwise, whatever is wrong in your environment will likely stay wrong and
>this
>problem will surface over and over again until it is fixed. We cannot even
>tell
>if it is a code bug until someone looks at it in detail.
>
>Restarting the daemons may work, until you hit the condition again. But
>the
>size of the trap log should have nothing to do with it.
>
>James Shanks
>Tivoli (NetView for UNIX) L3 Support
>
>
>
>"Desai, Aditya" <DesaiA AT USA.REDCROSS DOT ORG> on 08/05/99 03:15:42 PM
>
>Please respond to Discussion of IBM NetView and POLYCENTER Manager on
>NetView
> <NV-L AT UCSBVM.UCSB DOT EDU>
>
>To: NV-L AT UCSBVM.UCSB DOT EDU
>cc: (bcc: James Shanks/Tivoli Systems)
>Subject: Re: Events stop coming into Evenst Display...
>
>
>
>
>
>We are experiencing the same problem, It was not bad before the patch, but
>after the patch the control desk events stop updating, some time twice in
>one day.
>
>-----Original Message-----
>From: Gord Michaels [mailto:NV-L AT UCSBVM.ucsb DOT edu]
>Sent: Thursday, August 05, 1999 12:35 PM
>To: gord_michaels AT HOTMAIL DOT COM; NV-L AT UCSBVM.ucsb DOT edu
>Subject: Events stop coming into Evenst Display...
>
>
>Hello All.
>
>We have recently migrated to Netview 5.1.1.
>
>After the migration, I noticed that the size of my trapd.log file was set
>to
>26MB. I reduced this to 10MB because I felt that 26 MB was too much to surf
>through with vi.
>
>To be honest, I cannot recall what it was set to prior to migration.
>
>Shortly after I did this, I noticed a strange problem. My events would stop
>coming into my Events Display. Even though my trapd.log was still receiving
>them! The only way to fix this was to perform a "ovstop and ovstart". After
>that, all would be fine for a week or more, and now it has happened again!
>
>Has anyone ever experienced this problem before? Could it be related to
>changing the trapd.log size to 10Mb from 26Mb??
>
>Also, I only have one rulset in the foreground and none in the background.
>My maps still work fine and all else seems to be working fine, I am just
>suddenly stop reeiving events in my Events Display.
>
>Any help appreciated.
>
>Sincerely,
>
>Gord Michaels.
>
>
>
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