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Date: Sun, 10 Jun 2012 11:44:42 +0000 (UTC)
From: "Shai Erera (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Reopened] (LUCENE-4061) Improvements to
 DirectoryTaxonomyWriter (synchronization and others)
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     [ https://issues.apache.org/jira/browse/LUCENE-4061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shai Erera reopened LUCENE-4061:
--------------------------------


TestDirectoryTaxonomyWriter.testConcurrency sometimes fails on mismatch number of categories.

This is not repeated easily, but if run with -Dtests.iters, it is.
                
> Improvements to DirectoryTaxonomyWriter (synchronization and others)
> --------------------------------------------------------------------
>
>                 Key: LUCENE-4061
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4061
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>             Fix For: 4.0
>
>         Attachments: LUCENE-4061.patch
>
>
> DirTaxoWriter synchronizes in too many places. For instance addCategory() is fully synchronized, while only a small part of it needs to be.
> Additionally, getCacheMemoryUsage looks bogus - it depends on the type of the TaxoWriterCache. No code uses it, so I'd like to remove it -- whoever is interested can query the specific cache impl it has. Currently, only Cl2oTaxoWriterCache supports it.
> If the changes will be simple, I'll port them to 3.6.1 as well.

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