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https://issues.apache.org/jira/browse/HBASE-12071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14270246#comment-14270246
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Hudson commented on HBASE-12071:
--------------------------------
SUCCESS: Integrated in HBase-1.0 #643 (See
[https://builds.apache.org/job/HBase-1.0/643/])
HBASE-12071 Separate out thread pool for Master <-> RegionServer communication
(Stephen Yuan Jiang) (ndimiduk: rev bfc0c74cbabb97955b1355fb921f2f05a9fe972b)
* hbase-protocol/src/main/protobuf/RPC.proto
* hbase-client/src/main/java/org/apache/hadoop/hbase/HRegionInfo.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestPriorityRpc.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SimpleRpcSchedulerFactory.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/AnnotationReadingPriorityFunction.java
*
hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/RPCProtos.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestQosFunction.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/PayloadCarryingRpcController.java
> Separate out thread pool for Master <-> RegionServer communication
> ------------------------------------------------------------------
>
> Key: HBASE-12071
> URL: https://issues.apache.org/jira/browse/HBASE-12071
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 1.1.0
> Reporter: Sudarshan Kadambi
> Assignee: Stephen Yuan Jiang
> Labels: reliablity
> Fix For: 1.0.0, 2.0.0, 1.1.0
>
> Attachments:
> 0001-HBASE-12071-Separate-out-thread-pool-for-Master-Regi.patch,
> HBASE-12071.v1-branch-1.patch, HBASE-12071.v2-master.patch,
> HBASE-12071.v2-master.patch, HBASE-12071.v3-master.patch,
> HBASE-12071.v4-master.patch, HBASE-12071.v5-master.patch
>
>
> Over in HBASE-12028, there is a discussion about the case of a RegionServer
> still being alive despite all its handler threads being dead. One outcome of
> this is that the Master is left hanging on the RS for completion of various
> operations - such as region un-assignment when a table is disabled. Does it
> make sense to create a separate thread pool for communication between the
> Master and the RS? This addresses not just the case of the RPC handler
> threads terminating but also long-running queries or co-processor executions
> holding up master operations.
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