[
https://issues.apache.org/jira/browse/LUCENE-4638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538632#comment-13538632
]
Mark Miller commented on LUCENE-4638:
-------------------------------------
bq. I think a new forceUnluck method in IndexWriter is too dangerous
It's the same as the current static unlock method and javadocd the same.
I'm okay with it not being in Lucene though - I figure users would like to
avoid this bug as well, but simply making the lock factory protected exposes it
in an advanced enough way that it couldnt be considered dangerous. That would
let me gid rid of this bug as well.
bq. Let's see if rollback would have fixed it
I'll try that.
> If IndexWriter is interrupted on close and is using a channel (mmap/nio), it
> can throw a ClosedByInterruptException and prevent you from opening a new
> IndexWriter in the same proceses if you are using Native locks.
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-4638
> URL: https://issues.apache.org/jira/browse/LUCENE-4638
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Mark Miller
> Priority: Minor
> Fix For: 4.1, 5.0
>
> Attachments: LUCENE-4638.patch
>
>
> The ClosedByInterruptException will prevent the index from being unlocked in
> close. If you try and close again, the call will hang. If you are using
> native locks and try to open a new IndexWriter, it will fail to get the lock.
> If you try IW#forceUnlock, it wont work because the not fully closed IW will
> still have the lock.
> ideas:
> * On ClosedByInterruptException, IW should continue trying to close what it
> can and unlock the index? Generally I have see the exception trigger in
> commitInternal.
> * We should add a non static forceUnlock to IW that lets you remove the lock
> and start a new IW?
> * We should make the lock protected so IW sub classes could unlock the index
> in advanced use cases?
> * others?
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
