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https://issues.apache.org/jira/browse/HBASE-13170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14384847#comment-14384847
 ] 

Hudson commented on HBASE-13170:
--------------------------------

FAILURE: Integrated in HBase-TRUNK #6312 (See 
[https://builds.apache.org/job/HBase-TRUNK/6312/])
HBASE-13170 Allow block cache to be external (eclark: rev 
a4a235b8d131a04b7ba6e411271ef8f519f4a6c6)
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheConfig.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CombinedBlockCache.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.java
* hbase-server/pom.xml
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheConfig.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/InclusiveCombinedBlockCache.java
* 
hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/BlockCacheTmpl.jamon
* pom.xml
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java


> 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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