AW: locking with tuxedo

From: Petr Novak <Petr.Novak_at_trivadis.com>
Date: Wed, 5 Jan 2011 13:49:09 +0000
Message-ID: <09011014EB621E4CBC2536B62A1B640701E513_at_SMXC001.trivadis.com>



Hallo Remigiusz,

I cannot answer your question, but may be you could look on these documents:

http://www.oracle.com/technetwork/database/enterprise-edition/bestpracticesforxaandrac-128676.pdf http://www.oracle.com/technetwork/database/clustering/overview/distributed-transactions-and-xa-163941.pdf

Best Regards,
Petr



Von: oracle-l-bounce_at_freelists.org [oracle-l-bounce_at_freelists.org]&quot; im Auftrag von &quot;Remigiusz Sokolowski [remigiusz.sokolowski_at_nordea.com] Gesendet: Mittwoch, 5. Januar 2011 10:46 Bis: oracle-l
Betreff: locking with tuxedo

hi,

we hit from time to time the following issue: - some rows from a table are locked
- there is no blocking session information and the session, which tries to acquire lock has blocking_session_status set to NO HOLDER

The rows are locked by Tuxedo transaction. We suppose we hit the situation, when Tuxedo's TRAN_TIME is longer than distributed_lock_timeout and it seems setting those values to order TRAN_TIME<distributed_lock_timeout will solve this issue.

Question is how/where to search for more information about the "thing" holding lock and if it is possible to release such lock for example by forcing a local rollback?

Regards
Remigiusz

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Remigiusz Sokolowski <remigiusz.sokolowski_at_nordea.com>
pos   : DBA at DIiUSI
addr  : Nordea Bank Polska SA, Luzycka 6A Street, 81-537 Gdynia, Poland
phone : +48 58 667 17 43
mobile: +48 602 42 42 77

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http://www.freelists.org/webpage/oracle-l Received on Wed Jan 05 2011 - 07:49:09 CST

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