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https://issues.apache.org/jira/browse/SOLR-2654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398874#comment-13398874
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Ronny Karallus commented on SOLR-2654:
--------------------------------------
We just occured this problem using the spellchecking component. We got Solr 3.5
running.
Our configuration is:
...
<indexDefaults>
...
<lockType>simple</lockType>
</indexDefaults>
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
<str name="queryAnalyzerFieldType">textSpell</str>
<lst name="spellchecker">
<str name="name">default</str>
<str name="field">_spell</str>
<str name="spellcheckIndexDir">./spellchecker1</str>
<str name="buildOnCommit">true</str>
</lst>
...
</searchComponent>
That results in:
Caused by: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed
out: NativeFSLock@.../data/spellchecker1/write.lock
at org.apache.lucene.store.Lock.obtain(Lock.java:84)
at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1108)
at
org.apache.lucene.search.spell.SpellChecker.setSpellIndex(SpellChecker.java:169)
at
org.apache.lucene.search.spell.SpellChecker.<init>(SpellChecker.java:149)
at
org.apache.solr.spelling.AbstractLuceneSpellChecker.init(AbstractLuceneSpellChecker.java:127)
... 22 more
Our FS doesnt support native locking. That's why we configured locktype to
simple. However, the Spellchecker code doesn't use this setting ...
> <lockType/> not used consistently in all places Directory objects are
> instantiated
> ----------------------------------------------------------------------------------
>
> Key: SOLR-2654
> URL: https://issues.apache.org/jira/browse/SOLR-2654
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Mark Miller
> Fix For: 4.0
>
> Attachments: SOLR-2654.patch, SOLR-2654.patch, SOLR-2654.patch,
> SOLR-2654.patch, SOLR-2654.patch, SOLR-2654.patch, SOLR-2654.patch,
> SOLR-2654.patch, SOLR-2698.patch
>
>
> nipunb noted on the mailing list then when configuring solr to use an
> alternate <lockType/> (ie: simple) the stats for the SolrIndexSearcher list
> NativeFSLockFactory being used by the Directory.
> The problem seems to be that SolrIndexConfig is not consulted when
> constructing Directory objects used for IndexReader (it's only used by
> SolrIndexWriter)
> I don't _think_ this is a problem in most cases since the IndexReaders should
> all be readOnly in the core solr code) but plugins could attempt to use them
> in other ways. In general it seems like a really bad bug waiting to happen.
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