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From "Julius Stroffek (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2432) Unimplemented transaction time out for XA transactions may cause that locks will not be released when client terminates outside a unit of work.
Date Thu, 14 Jun 2007 12:58:26 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12504707
] 

Julius Stroffek commented on DERBY-2432:
----------------------------------------

I found some small piece about the xa transaction timeout behaviour in DRDA  V4 - Vol 3: Distributed
Data Management Architecture.

Page 964:
The TIMEOUT parameter is a 64-bit binary number which measures time in milliseconds. It
represents the elapsed time before the transaction is rolled back. The timer is started at
the
beginning of the transaction SYNCCTL(New UOW).
If the request SYNCCTL(Prepare to Commit) is not received during this time period, the
transaction will be implicitly rolled back.


> Unimplemented transaction time out for XA transactions may cause that locks will not
be released when client terminates outside a unit of work.
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2432
>                 URL: https://issues.apache.org/jira/browse/DERBY-2432
>             Project: Derby
>          Issue Type: New Feature
>          Components: JDBC
>            Reporter: Julius Stroffek
>            Assignee: Julius Stroffek
>             Fix For: 10.3.0.0
>
>         Attachments: d2432.diff, d2432.stat, d2432_v2.diff, d2432_v2.stat, d2432_v3.diff,
d2432_v3.stat, description.txt
>
>
> The XAResource interface provides function setTransactionTimeout which is currently not
supported in derby.
> When client application uses client driver to connect to derby database and the application
crashes outside the unit of work of XA transaction and the transaction is not committed or
rolled back yet the locks held by the transaction will not be released.

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