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Re: Database connection lost

To: nv-l@lists.tivoli.com
Subject: Re: Database connection lost
From: James_Shanks@tivoli.com
Date: Mon, 3 Jul 2000 09:40:02 -0400

You are in a world of hurt now and you need to call Support immediately.   The
proper thing would have been to do a compress with ovwdbdmap before you ran
nvTurboDb.   It may be that there is now  a corrupt object that can be found and
deleted -- I would try ovtopofix (either -a if you have only one map, -A if you
have more than one) and see if that helps.  If it does not, then Support  will
need to assist you.  And you will also have to put on 5.1.3 is you have not done
so already.

I hope you kept  a backup of /usr/OV/databases/openview before you started all
this, else you may have to delete your entire data base and start over.

The issue  of a 2 GB database in a 1 GB filesystem is misleading.
Unfortunately, you have misinterpreted what is really going on.  The NetView
databases are what are called "sparse" file systems, which means that they use a
pointer mechanism which may make it look like they are using much more space
than they actually are,  because not all the system tools (ls, for example) are
built to deal with these unique structures.

James Shanks
Team Leader, Level 3 Support
 Tivoli NetView for UNIX and NT

zuffranieri@IT.IBM.COM on 07/03/2000 08:55:25 AM

Please respond to IBM NetView Discussion <nv-l@tkg.com>

To:   NV-L@UCSBVM.ucsb.edu
cc:    (bcc: James Shanks/Tivoli Systems)
Subject:  [NV-L] Database connection lost

Hi all,

I have a problem with Netview 5.1 on AIX 4.2.1
The file /usr/OV/databases/openview/ovwdb/current/value_info has become 2
GB large, in a filesystem of 1 GB !
I used nvTurboDb speed (and space) but after syncronize the file grows
Then I used ovwdbdmap -c and now the file remains of 70 MB.
Some day after I received the error

Fatal ovw error
Database connection lost
ipmapBailout called from nl_callbacks.C(2732)

and ovwdb abends.

Do you know anything about?

Thanks Fabio

Fabio Zuffranieri
IBM Global Services-ITS
Via Sciangai 53-Rome 00144-ITALY

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