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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18390) Sleep too long when finding region location failed
Date Wed, 19 Jul 2017 04:26:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16092548#comment-16092548
] 

Hudson commented on HBASE-18390:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-1.3-JDK7 #199 (See [https://builds.apache.org/job/HBase-1.3-JDK7/199/])
HBASE-18390 Sleep too long when finding region location failed (yangzhe1991: rev c74f9d2e578ab5644d3ebfea67d67fe52d6085b3)
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionServerCallable.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/RegionAdminServiceCallable.java


> Sleep too long when finding region location failed
> --------------------------------------------------
>
>                 Key: HBASE-18390
>                 URL: https://issues.apache.org/jira/browse/HBASE-18390
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.3.1, 1.2.6, 1.1.11, 2.0.0-alpha-1
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>             Fix For: 3.0.0, 1.4.0, 1.3.2, 1.5.0, 1.2.7, 2.0.0-alpha-2, 1.1.12
>
>         Attachments: HBASE-18390.v01.patch, HBASE-18390.v02.patch, HBASE-18390.v03.patch
>
>
> If RegionServerCallable#prepare failed when getRegionLocation, the location in this callable
object is null. And before we retry we will sleep. However, when location is null we will
sleep at least 10 seconds. And the request will be failed directly if operation timeout is
less than 10 seconds. I think it is no need to keep MIN_WAIT_DEAD_SERVER logic. Use backoff
sleeping logic is ok for most cases.



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