nv-l
[Top] [All Lists]

Re: [NV-L] Netview Event Browser Hangs

To: Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>
Subject: Re: [NV-L] Netview Event Browser Hangs
From: Leslie Clark <lclark@us.ibm.com>
Date: Wed, 30 May 2007 09:09:27 -0400
Delivery-date: Wed, 30 May 2007 14:15:04 +0100
Envelope-to: nv-l-archive@lists.skills-1st.co.uk
In-reply-to: <9b33e50c0705300521j1d8bee4oa874bbe0e63bc083@mail.gmail.com>
List-help: <mailto:nv-l-request@lists.ca.ibm.com?subject=help>
List-id: Tivoli NetView Discussions <nv-l.lists.ca.ibm.com>
List-post: <mailto:nv-l@lists.ca.ibm.com>
List-subscribe: <http://lists.ca.ibm.com/mailman/listinfo/nv-l>, <mailto:nv-l-request@lists.ca.ibm.com?subject=subscribe>
List-unsubscribe: <http://lists.ca.ibm.com/mailman/listinfo/nv-l>, <mailto:nv-l-request@lists.ca.ibm.com?subject=unsubscribe>
Reply-to: Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>
Sender: nv-l-bounces@lists.ca.ibm.com

You are close, but you need to turn on discovery in the nmpolling dialog. And you need to put the seedfile into effect BEFORE you restart automatic map generation.
The ranges do not force discovery, they control discovery. In order to consider a node for discovery, Netview has to hear about it first. This can happen in one of several ways.

1) Seeds. Put a couple of SNMP-enabled routers, like your core devices, in the seedfile. Netmon will work through their ARP cache and routing tables and find out about devices, and work outwards from there, checking everything it finds out about against those ranges. If any address on a device matches any range, it is allowed. Discovery must be enabled.

2) Or you can ping a few things from the Netview commandline. Netmon hears about them when the responses come back, and considers them for addition. Then it checks their ARP cache, etc, and works out from there. Discovery must be enabled.

3) Put all devices in the seedfile (one address per device is preferable). You can leave Discovery disabled in this case, but it is nuisance to administer, and can get quite large.

How you go about this depends on your mission.  But a seedfile of just ranges, on a new discovery, could take a long time. I like to see a discovery just zoom along until it is done.

Cordially,

Leslie A. Clark
IT Services Specialist, Network Mgmt
Information Technology Services Americas
IBM Global Services
(248) 552-4968 Voicemail, Fax, Pager



"sudha g" <sudha.unix@gmail.com>
Sent by: nv-l-bounces@lists.ca.ibm.com

05/30/2007 08:21 AM
Please respond to
Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>

To
"Tivoli NetView Discussions" <nv-l@lists.ca.ibm.com>
cc
Subject
Re: [NV-L] Netview Event Browser Hangs





(1)No i restarted all of them using ovstop & ovstart commands.
(2) Event History--Query--->Display events is not working since it hangs when i clicked Event History itself (showing busy icon)
(3) event -h hostname command send nodeup events, but didn't received in trapd.log file. It was fine when i checked the same command in another test machine and there i cans ee the event in trapd.log file.
(4) Finally, we are in the process of stopping traps from Openwave Messaging Server and need to check the other events like Node up and Node down. Also i want netview to stop discovering the network range, but it's not working through the seed file i created. Please check the steps i followed and the seed file and advice me.
 
Steps:
1.run this command  "smit nv6000"
2. Maintain-->Clear Object/topology/map databases, remove customizations
3. Control-->Restart Automatic Map Generation

4. run this command "nmpolling"
5. uncheck "Discover new nodes" & "Discover new services"
6. run this command "launch_seededit"
    Limit by IP Address
    In Include, i added the following IP range (can be seen below from the output of seedfile)
    In Exclude list i added the IP range which is not to be discovered.
   
@limit_discovery   # Limit discovery to the contents of this seed file.
10.16.51.*
10.16.14.*
10.16.15.*
10.16.45.*
10.16.16.*
10.16.52.*
10.16.53.*
10.16.54.*
10.17.14.*
10.17.16.*
10.17.51.*
10.17.17.*
10.18.17.*
10.18.14.*
10.18.16.*
10.18.51.*
10.19.17.*
10.19.16.*
10.19.51.*
10.19.52.*
10.19.53.*
10.19.54.*
192.168.*.*
172.*.*.*
!10.16.12.10-40
!10.17.12.10-40
!10.18.12.10-40
!10.19.12.10-40

Is this right?
Will netview identify all the devices in 10.16.*.* ,10.17.*.*,10.18.*.*,10.19.*.* and
If discovered i need this to arrange in 4 locations.
Like if i click location A, it should list all devices discovered under 10.16.*.* and if location B. it should show 10.17.*.*
 
Kindly advice me on the same.


On 5/29/07, James Shanks <jshanks@us.ibm.com> wrote:
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
Inactive hide details for "sudha g" <sudha.unix@gmail.com>"sudha g" < sudha.unix@gmail.com>

"sudha g" <sudha.unix@gmail.com>
Sent by:
nv-l-bounces@lists.ca.ibm.com

05/28/2007 06:19 AM
Please respond to
Tivoli NetView Discussions <
nv-l@lists.ca.ibm.com >



To

"Tivoli NetView Discussions" <
nv-l@lists.ca.ibm.com>

cc

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

Inactive hide details for "sudha g" <sudha.unix@gmail.com>"sudha g" <sudha.unix@gmail.com >
"sudha g" <sudha.unix@gmail.com>
Sent by:
nv-l-bounces@lists.ca.ibm.com

05/24/2007 03:43 PM


Please respond to
Tivoli NetView Discussions <
nv-l@lists.ca.ibm.com >


To

nv-l@lists.ca.ibm.com

cc

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
_______________________________________________
NV-L mailing list

NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l  (Browser access limited to internal IBM'ers only)


_______________________________________________
NV-L mailing list

NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access limited to internal IBM'ers only)

_______________________________________________
NV-L mailing list

NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l  (Browser access limited to internal IBM'ers only)


_______________________________________________
NV-L mailing list

NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access limited to internal IBM'ers only)


_______________________________________________
NV-L mailing list
NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access limited to internal IBM'ers only)

_______________________________________________
NV-L mailing list
NV-L@lists.ca.ibm.com
Unsubscribe:NV-L-leave@lists.ca.ibm.com
http://lists.ca.ibm.com/mailman/listinfo/nv-l (Browser access limited to 
internal IBM'ers only)
<Prev in Thread] Current Thread [Next in Thread>

Archive operated by Skills 1st Ltd

See also: The NetView Web