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From "David Smiley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-3424) PhoneticFilterFactory threadsafety bug
Date Mon, 30 Apr 2012 06:32:53 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13264688#comment-13264688
] 

David Smiley commented on SOLR-3424:
------------------------------------

And I also noticed that Commons-Codec's Caverphone.class was deprecated for Caverphone2.class
so I made that simple change.  The docs say the deprecated one simply forwards calls, so there
should be no side-effects of this change.
                
> PhoneticFilterFactory threadsafety bug
> --------------------------------------
>
>                 Key: SOLR-3424
>                 URL: https://issues.apache.org/jira/browse/SOLR-3424
>             Project: Solr
>          Issue Type: Bug
>          Components: Schema and Analysis
>    Affects Versions: 3.6, 4.0
>            Reporter: David Smiley
>            Assignee: David Smiley
>            Priority: Minor
>             Fix For: 4.0
>
>         Attachments: SOLR-3424_PhoneticFilterFactory_threadsafety_bug.patch
>
>
> PhoneticFilterFactory has a static HashMap registry mapping an encoder name to an implementation.
There is a ReentrantLock used when the map is modified (when the encoder config specifies
a class name).  However, this map, which can be accessed by multiple indexing threads, isn't
guarded on any of the reads, which isn't just the common path but also the error messages
which dump the registry into the error message.
> I realize the likelihood of a problem is extremely slim, but a bug's a bug.

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