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Problems in replication

From: <Shreepad.Vaidya_at_alltel.com>
Date: Wed, 09 Jan 2002 05:42:24 -0800
Message-ID: <F001.003EAE33.20020109051023@fatcity.com>

Hi,
We have a replication between production and reporting database.

Prodn  Server                 Reporting server

HP-UX 10.2                    HP-UX 10.2
oracle 7.3.4.4.1                   oracle 7.3.4.4.1

The os and oracle patches on the production server and reporting server are in sync.

Problem:-------------- The replication goes fine. On the reporting database .
1) But sometimes a query hangs. Dropping and recreating a snapshot seems to solve the problem and the query executes properly after that. 2) This has happened on different tables . We have reorged the database on different disks .

3) Hp and EMC  have confirmed that the problem does not lie with the disk.
4) The export for that particular table (snapshot) hangs.
5) We have dumped the related logical volume to a filesystem and did a
dbverify . That is ok.
6) We have async io on both prod and reporting database and raw devices .

          Has anyone encountered such a problem . Any tips would be appreciated .

7) We have logged a tar on metalink , the responses obtained have been implemented , but the problem of a query hanging and working properly after a recreation of snapshot still continues.

                    shreepad

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  INET: Shreepad.Vaidya_at_alltel.com

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