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https://issues.apache.org/jira/browse/LUCENE-1885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler reassigned LUCENE-1885:
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Assignee: Uwe Schindler
I will solve this together with LUCENE-1877.
To test, if lock is obtained, you have to try locking and release the lock
after that (if the lock was obtained):
{code}
public synchronized boolean isLocked() {
// the test for is isLocked is not directly possible with native file locks:
// if we have a lock instance in this class, it is for sure locked:
if (lockExists()) return true;
// else try to obtain and release (if was locked) the lock to test
try {
boolean obtained = obtain();
if (obtained) release();
return !obtained;
} catch (IOException ioe) {
return false;
}
}
{code}
The method lockExists contains the same like isLocked contained before and is
used instead to check if a local lock instance is available (as quick
break-out).
There is no patch as it is included in my work for 1877 and hard to unwire.
> NativeFSLockFactory.makeLock(...).isLocked() does not work
> ----------------------------------------------------------
>
> Key: LUCENE-1885
> URL: https://issues.apache.org/jira/browse/LUCENE-1885
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Priority: Blocker
> Fix For: 2.9
>
>
> IndexWriter.isLocked() or IndexReader.isLocked() do not work with
> NativeFSLockFactory.
> The problem is, that the method NativeFSLock.isLocked() just checks if the
> same lock instance was locked before (lock != null). If the LockFactory
> created a new lock instance, this always returns false, even if its locked.
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