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https://issues.apache.org/jira/browse/HBASE-11970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134146#comment-14134146
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Ted Yu commented on HBASE-11970:
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The scenario this issue is concerned is not single node deployment.
> BlockCache would be instantiated when Master doesn't host regions
> -----------------------------------------------------------------
>
> Key: HBASE-11970
> URL: https://issues.apache.org/jira/browse/HBASE-11970
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.99.0
> Reporter: Ted Yu
>
> HMaster ctor calls HRegionServer ctor which calls CacheConfig ctor where
> CacheConfig.instantiateBlockCache() would create BlockCache.
> This happens even if Master is configured not to host regions.
> This was observed when I tried to answer question from the thread titled:
> 'The default hbase.regionserver.info.port doesn't work'
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