[
https://issues.apache.org/jira/browse/LUCENE-3193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13048374#comment-13048374
]
Shai Erera commented on LUCENE-3193:
------------------------------------
{quote}
But: perhaps a different exception should be thrown if there is a problem in
the commit() loop vs the prepareCommit() loop? This way caller can
differentiate this case?
{quote}
Good idea. So instead of throwing IOE, we'll throw (Prepare)CommitFailException
which takes a Throwable 'cause' and TPC 'obj'. We can make the two sub-class
IOE for convenience (in case someone does not want to differentiate the two,
it's easier to handle both cases in one catch block).
I'll add these and upload a new patch by tomorrow.
> TwoPhaseCommit interface
> ------------------------
>
> Key: LUCENE-3193
> URL: https://issues.apache.org/jira/browse/LUCENE-3193
> Project: Lucene - Java
> Issue Type: New Feature
> Components: core/index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Fix For: 3.3, 4.0
>
> Attachments: LUCENE-3193.patch
>
>
> I would like to propose a TwoPhaseCommit interface which declares the methods
> necessary to implement a 2-phase commit algorithm:
> * prepareCommit()
> * commit()
> * rollback()
> The prepare/commit ones have variants that take a (Map<String,String>
> commitData) following the ones we have in IndexWriter.
> In addition, a TwoPhaseCommitTool which implements a 2-phase commit amongst
> several TPCs.
> Having IndexWriter implement that interface will allow running the 2-phase
> commit algorithm on multiple IWs or IW + any other object that implements the
> interface.
> We should mark the interface @lucene.internal so as to not block ourselves in
> the future. This is pretty advanced stuff anyway.
> Will post a patch soon
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
