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From "Knut Anders Hatlen (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 20:44:26 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12504903
] 

Knut Anders Hatlen commented on DERBY-2432:
-------------------------------------------

Thanks for investigating this Julo. It also seems like many of the same questions were asked
and answered under DERBY-2508 as well. There weren't any objections to the approach as far
as I could see, so I guess it is uncontroversial to go for that solution. If there are no
objections, I will commit the patch tomorrow.

Just one final question about the changes in the v4 patch:
> changes:
> XATransactionState:
> - Added a timeout task cancellation to xa_prepare() method.

Will the locks mentioned in the description be released after xa_prepare()? If they are, this
sounds fine.

> 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, d2432_v4.diff, d2432_v4.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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