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https://issues.apache.org/jira/browse/HBASE-4422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Gray resolved HBASE-4422.
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Resolution: Fixed
Release Note: Relocates all cache configuration options and constants into
a new CacheConfig class. Modifies lots of constructors from Store/StoreFile
down to HFile.
Hadoop Flags: Reviewed
Committed to trunk and branch. Thanks everyone for all the reviews. Thanks
Mikhail for all the back and forth!
> Move block cache parameters and references into single CacheConf class
> ----------------------------------------------------------------------
>
> Key: HBASE-4422
> URL: https://issues.apache.org/jira/browse/HBASE-4422
> Project: HBase
> Issue Type: Improvement
> Components: io
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
> Fix For: 0.92.0
>
> Attachments: CacheConfig92-v8.patch, HBASE-4422-FINAL-branch92.patch,
> HBASE-4422-FINAL-trunk.patch
>
>
> From StoreFile down to HFile, we currently use a boolean argument for each of
> the various block cache configuration parameters that exist. The number of
> parameters is going to continue to increase as we look at compressed cache,
> delta encoding, and more specific L1/L2 configuration. Every new config
> currently requires changing many constructors because it introduces a new
> boolean.
> We should move everything into a single class so that modifications are much
> less disruptive.
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