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https://issues.apache.org/jira/browse/HBASE-16285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15415505#comment-15415505
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Hudson commented on HBASE-16285:
--------------------------------
FAILURE: Integrated in HBase-1.4 #347 (See
[https://builds.apache.org/job/HBase-1.4/347/])
HBASE-16285 Drop RPC requests if it must be considered as timeout at (zhangduo:
rev 38044ada3253f2606eee553405f9aeedd0f51e5d)
* hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestHCM.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RpcServer.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/CallRunner.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RpcServerInterface.java
> Drop RPC requests if it must be considered as timeout at client
> ---------------------------------------------------------------
>
> Key: HBASE-16285
> URL: https://issues.apache.org/jira/browse/HBASE-16285
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 1.3.0, 1.4.0
> Reporter: Phil Yang
> Assignee: Phil Yang
> Fix For: 2.0.0, 1.3.0, 1.4.0
>
> Attachments: HBASE-16285-branch-1-v1.patch,
> HBASE-16285-branch-1-v2.patch, HBASE-16285-branch-1-v3.patch,
> HBASE-16285-branch-1-v4.patch, HBASE-16285-branch-1-v5.patch,
> HBASE-16285-branch-1-v5.patch, HBASE-16285-branch-1-v6.patch,
> HBASE-16285-v1.patch, HBASE-16285-v2.patch, HBASE-16285-v3.patch,
> HBASE-16285-v4.patch, HBASE-16285-v5.patch, HBASE-16285-v6.patch,
> HBASE-16285-v7.patch, HBASE-16285-v7.patch, HBASE-16285-v8.patch,
> HBASE-16285-v9.patch
>
>
> After HBASE-15593, we have a timeout param in header of RPC requests. We can
> use it in more scenes.
> A straightforward scene is to drop requests if it has waited so long in RPC
> queue and has been dropped by client. Even if we handle this request and send
> the response back, it will not be used any more. And client may have sent a
> retry. In an extreme case, if the server is slow, all requests may be timeout
> or queue-full-exception because we should handle previous requests which have
> been dropped by client and many resources at server are wasted.
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