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Date: Wed, 16 Nov 2016 21:08:58 +0000 (UTC)
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Subject: [jira] [Resolved] (HBASE-5024) A thread named
 LruBlockCache.EvictionThread remains after the shutdown of a cluster
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archived-at: Wed, 16 Nov 2016 21:09:02 -0000


     [ https://issues.apache.org/jira/browse/HBASE-5024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-5024.
--------------------------
    Resolution: Cannot Reproduce

Don't seem to see this in more modern hbase's. Resolving (Matteo traced code and we should be doing right thing).

> A thread named LruBlockCache.EvictionThread remains after the shutdown of a cluster
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-5024
>                 URL: https://issues.apache.org/jira/browse/HBASE-5024
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.0
>            Reporter: Nicolas Liochon
>            Priority: Minor
>
> There is no cleanup function in hbase.io.hfile.CacheConfig. The cache is a singleton, shared by all cluster if we launch more than one cluster on a test.
> Related code is:
> {noformat}
>   /**
>    * Static reference to the block cache, or null if no caching should be used
>    * at all.
>    */
>   private static BlockCache globalBlockCache;
>   /** Boolean whether we have disabled the block cache entirely. */
>   private static boolean blockCacheDisabled = false;
>   /**
>    * Returns the block cache or <code>null</code> in case none should be used.
>    *
>    * @param conf  The current configuration.
>    * @return The block cache or <code>null</code>.
>    */
>   private static synchronized BlockCache instantiateBlockCache(){
>      // initiate globalBlockCache
> {noformat}



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