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From "Jan Eerdekens (JIRA)" <>
Subject [jira] [Commented] (LUCENE-6725) Reindex crashes the JVM
Date Thu, 06 Aug 2015 09:59:04 GMT


Jan Eerdekens commented on LUCENE-6725:

Currently reproducing this behaviour is difficult as we're seeing the following:

- the problem seemed to occur consistently on our production environment (but we can't tried
it a lot there for obvious reasons)
  - after installing a monitoring tool today (a Java agent) the next reindex didn't crash
the JVM
- the problem (at first) didn't happen on our pre-production environment (which is the most
similar with regards to CPU/memory/... to production)
  - in the weeks after discovering the problem, it also happened once on the pre-production
environment, but on retrying the reindex afterwards it didn't happen again
- the problem isn't reproducible on our test environment or local machines (Apple MacBook

We also created a small standalone Java tool that is also able to do the IndexWriter.deleteAll()
call on a copy of the index, but that doesn't trigger the same JVM crash on our production
and pre-production environments (using in the same JVM version).

> Reindex crashes the JVM
> -----------------------
>                 Key: LUCENE-6725
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/index
>    Affects Versions: 3.5
>         Environment: Solaris 10 1/13 (Update 11) Patchset applied.
> Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC
> CPU:total 64 v9, popc, vis1, vis2, vis3, blk_init, cbcond, sun4v, niagara_plus
> Memory: 8k page, physical 25165824k(3240848k free)
> vm_info: Java HotSpot(TM) 64-Bit Server VM (24.75-b04) for solaris-sparc JRE (1.7.0_75-b13)
>            Reporter: Jan Eerdekens
>            Priority: Minor
>         Attachments: hs_err_pid18938.log
> We're using Liferay which uses Lucene behind the screens to index things like documents,
web content, users, etc... . When we trigger a full reindex via the Liferay Control Panel,
which uses IndexWriter.deleteAll(), the JVM crashes and generates a dump with the following
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  SIGSEGV (0xb) at pc=0xffffffff78de94a8, pid=18938, tid=2478
> #
> # JRE version: Java(TM) SE Runtime Environment (7.0_75-b13) (build 1.7.0_75-b13)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.75-b04 mixed mode solaris-sparc compressed
> # Problematic frame:
> # J 5227 C2 org.apache.lucene.index.IndexFileNames.segmentFileName(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
(44 bytes) @ 0xffffffff78de94a8 [0xffffffff78de9480+0x28]

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