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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2476) Constructor of IndexWriter let's runtime exceptions pop up, while keeping the writeLock obtained
Date Tue, 25 May 2010 16:20:26 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12871230#action_12871230
] 

Shai Erera commented on LUCENE-2476:
------------------------------------

This exception shows a LockObtainFailed exception - can you post the one that resulted in
NegativeArraySize -- curious to know where you hit it, and what sort of corruption yields
to that :).

> Constructor of IndexWriter let's runtime exceptions pop up, while keeping the writeLock
obtained
> ------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2476
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2476
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 3.0.1
>            Reporter: Cservenak, Tamas
>            Assignee: Michael McCandless
>            Priority: Blocker
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2476.patch
>
>
> Constructor of IndexWriter let's runtime exceptions pop up, while keeping the writeLock
obtained.
> The init method in IndexWriter catches IOException only (I got NegativeArraySize by reading
up a _corrupt_ index), and now, there is no way to recover, since the writeLock will be kept
obtained. Moreover, I don't have IndexWriter instance either, to "grab" the lock somehow,
since the init() method is called from IndexWriter constructor.
> Either broaden the catch to all exceptions, or at least provide some circumvention to
clear up. In my case, I'd like to "fallback", just delete the corrupted index from disk and
recreate it, but it is impossible, since the LOCK_HELD NativeFSLockFactory's entry about obtained
WriteLock is _never_ cleaned out and is no (at least apparent) way to clean it out forcibly.
I can't create new IndexWriter, since it will always fail with LockObtainFailedException.

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