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https://issues.apache.org/jira/browse/HBASE-13170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elliott Clark updated HBASE-13170:
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Resolution: Fixed
Fix Version/s: 2.0.0
Release Note: HBase can use memcached as an external block cache. To use
this change your config to set hbase.blockcache.use.external to true and
hbase.cache.memcached.servers to contain the list of memcached servers to use.
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
pushed to branch-1 and master. Thanks for the reviews everyone.
> Allow block cache to be external
> --------------------------------
>
> Key: HBASE-13170
> URL: https://issues.apache.org/jira/browse/HBASE-13170
> Project: HBase
> Issue Type: New Feature
> Components: io
> Affects Versions: 2.0.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 2.0.0, 1.1.0
>
> Attachments: HBASE-13170-v1.patch, HBASE-13170-v2.patch,
> HBASE-13170-v3.patch, HBASE-13170-v4.patch, HBASE-13170-v5.patch,
> HBASE-13170.patch
>
>
> Allow an external service to provide the block cache. This has the nice
> property of allowing failover/upgrades to happen without causing a fully cold
> cache.
> Additionally this allows read replicas to share some of the same memory.
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