TAF

From: BERNHARD Nora <nora.bernhard_at_STGKK.sozvers.at>
Date: Thu, 14 Jul 2005 08:37:00 +0200
Message-ID: <2EA4E8C52519454BADADEC21AADC79F8012046D9@maila.stgkk.sozvers.at>

Hello all,

I just set up a new database on a 2-node 10g RAC. There are already some other databases installed and running, with working failover. For the new db the TAF does not work. As far as I understand (newbie :( ), the following entries in tnsnames.ora should suffice:

GWIT =
  (DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = o1.stgkk.sozvers.at)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = o2.stgkk.sozvers.at)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =

      (SERVER = DEDICATED)
      (SERVICE_NAME = gwit.stgkk.sozvers.at)
      (FAILOVER_MODE =
        (TYPE = SELECT)
        (METHOD = BASIC)
        (RETRIES = 180)
        (DELAY = 5)
      )

    )
  )

GWIT1 =
  (DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = o1.stgkk.sozvers.at)(PORT = 1521))
(CONNECT_DATA =

      (SERVER = DEDICATED)
      (SERVICE_NAME = gwit.stgkk.sozvers.at)
      (INSTANCE_NAME = gwit1)

    )
  )

GWIT2 =
  (DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = o2.stgkk.sozvers.at)(PORT = 1521))
(CONNECT_DATA =

      (SERVER = DEDICATED)
      (SERVICE_NAME = gwit.stgkk.sozvers.at)
      (INSTANCE_NAME = gwit2)

    )
  )

LISTENERS_GWIT =
  (ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = o1.stgkk.sozvers.at)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = o2.stgkk.sozvers.at)(PORT = 1521))
  )

My testing procedure (instructions from an Oracle support employee) is as follows: I open two separate sqlplus sessions to the same instance, in either of them I execute a long select, followed by a shutdown abort in the other session. The expected result is the select to continue running and finish gracefully on the second instance - but instead I receive "ORA-03113: end-of-file on communication channel".

What am I missing? Any hints highly appreciated!

Thanks,

Steiermärkische Gebietskrankenkasse
A-8011 Graz, Josef-Pongratz-Platz 1, http://www.stgkk.at

Nora Bernhard
OE Informationstechnologie - Systemadministration Tel: +43 (0) 316 8035 - 1349
Fax: +43 (0) 316 8035 - 661349
mailto:nora.bernhard_at_stgkk.sozvers.at

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Received on Thu Jul 14 2005 - 01:38:59 CDT