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https://issues.apache.org/jira/browse/HBASE-17251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15731465#comment-15731465
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Hudson commented on HBASE-17251:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #2093 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/2093/])
HBASE-17251 Add a timeout parameter when locating region (zhangduo: rev
b3ae87bd7dd539fd8d5409076933d4528ff6b14c)
* (add)
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncRegionLocatorTimeout.java
* (edit)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncSingleRequestRpcRetryingCaller.java
* (edit)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncRegionLocator.java
* (edit)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncTableRegionLocatorImpl.java
* (edit)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncConnectionImpl.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncRegionLocator.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncSingleRequestRpcRetryingCaller.java
> Add a timeout parameter when locating region
> --------------------------------------------
>
> Key: HBASE-17251
> URL: https://issues.apache.org/jira/browse/HBASE-17251
> Project: HBase
> Issue Type: Sub-task
> Components: asyncclient, Client
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: HBASE-17251-v1.patch, HBASE-17251.patch
>
>
> Now we always use the default timeout configured for zk and meta.
> I think it is reasonable to always use the same timeout when accessing zk and
> meta as the result will be shared by lots of threads. If we could do a
> successful fetching then the result will be in cache so it does not make
> sense to set the timeout to a very small value when fetching.
> But I think it is also important to let the user request finish in time even
> if the user can only get a timeout exception. We should not block a user
> request longer than operation timeout.
> So I think we could add a timeout parameter to the region locate method, and
> if the location can not be fetched in time, we will just finished the
> returned CompletableFuture with a timeout exception, but the actual fetching
> operation can still go on and use its own timeout config.
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