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https://issues.apache.org/jira/browse/HBASE-2451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-2451:
-------------------------
Attachment: meta3.txt
Patch that enables IN_MEMORY and BLOCKCACHE on catalog tables on bootstrap.
Includes script that will fixup catalog tables when run (though subsequently
requires cluster restart or redeploy of the .META. for the change to take
effect).
> .META. by-passes cache; BLOCKCACHE=>'false'
> -------------------------------------------
>
> Key: HBASE-2451
> URL: https://issues.apache.org/jira/browse/HBASE-2451
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Priority: Blocker
> Fix For: 0.20.4, 0.20.5, 0.21.0
>
> Attachments: meta.txt, meta3.txt
>
>
> In a new install, if I describe '.META.', it says:
> {code}
> DESCRIPTION
> ENABLED
> {NAME => '.META.', IS_META => 'true', MEMSTORE_FLUSHSIZE => '16384', F true
>
> AMILIES => [{NAME => 'historian', COMPRESSION => 'NONE', VERSIONS => '
>
> 2147483647', TTL => '604800', BLOCKSIZE => '8192', IN_MEMORY => 'false
>
> ', BLOCKCACHE => 'false'}, {NAME => 'info', COMPRESSION => 'NONE', VER
>
> SIONS => '10', TTL => '2147483647', BLOCKSIZE => '8192', IN_MEMORY =>
>
> 'false', BLOCKCACHE => 'true'}]}
> {code}
> BLOCKCACHE is 'true' for the 'info' family (Yes historian is still in 0.20
> branch).
> But, if I add logging to hfile and storefile and store, blockcache is 'false'
> -- there is no cache constructed for use by the hfile.
> This is killing cluster performance.
> It looks like a problem parsing the 'true' value in columnfamily. I'll put
> up a patch in the morning. Meantime, marking as blocker on 0.20.4.
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