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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-3424) PhoneticFilterFactory threadsafety bug
Date Tue, 01 May 2012 08:03:46 GMT

     [ https://issues.apache.org/jira/browse/SOLR-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated SOLR-3424:
--------------------------------

    Attachment: SOLR-3424_PhoneticFilterFactory_threadsafety_bug.patch

Updated patch, I added a testcase for the reflection without package name:
- I use "Caverphone2" as package less name, which is not in the REGISTRY. The returned class
should be Caverphone2
- I cross-check with the REGISTRY name "Caverphone", which should also return the new Caverphone2
encoder, but without reflection
                
> 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, SOLR-3424_PhoneticFilterFactory_threadsafety_bug.patch,
SOLR-3424_PhoneticFilterFactory_threadsafety_bug.patch, 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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