[infinispan-issues] [JBoss JIRA] (ISPN-3592) Regression in Lucene Directory: NPE during SegmentInfos.getLastCommitGeneration

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12823169#comment-12823169 ] 

RH Bugzilla Integration commented on ISPN-3592:
-----------------------------------------------

Sanne Grinovero <sanne at redhat.com> made a comment on [bug 1018097|https://bugzilla.redhat.com/show_bug.cgi?id=1018097]

I'm wondering if QA actually already had tests which could highlight this?

In Infinispan running the functional testsuite is not enough, you need to run a load or performance test to trigger the failure.

I'm pretty confident that it will pass QA now but it would be good to verify that the version without the fix was actually causing some failure.
                
> Regression in Lucene Directory: NPE during SegmentInfos.getLastCommitGeneration
> -------------------------------------------------------------------------------
>
>                 Key: ISPN-3592
>                 URL: https://issues.jboss.org/browse/ISPN-3592
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Lucene Directory
>    Affects Versions: 6.0.0.CR1
>            Reporter: Sanne Grinovero
>            Assignee: Sanne Grinovero
>            Priority: Blocker
>             Fix For: 6.0.0.Final
>
>
> The problem is a very recent regression, so relative to 6.0.0.CR1 only.
> {noformat}
> java.lang.NullPointerException
> 	at org.apache.lucene.index.SegmentInfos.getLastCommitGeneration(SegmentInfos.java:160)
> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:605)
> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:554)
> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:359)
> 	at org.apache.lucene.index.SegmentInfos.readCurrentVersion(SegmentInfos.java:483)
> 	at org.apache.lucene.index.DirectoryReader.isCurrent(DirectoryReader.java:891)
> 	at org.apache.lucene.index.DirectoryReader.doOpenNoWriter(DirectoryReader.java:455)
> 	at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:434)
> 	at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:375)
> 	at org.apache.lucene.index.IndexReader.openIfChanged(IndexReader.java:508)
> 	at org.apache.lucene.index.IndexReader.reopen(IndexReader.java:695)
> 	at org.infinispan.lucene.profiling.LuceneReaderThread.refreshIndexReader(LuceneReaderThread.java:58)
> {noformat}

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