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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17427) region_mover.rb may move region onto the same server
Date Wed, 04 Jan 2017 22:59:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15799624#comment-15799624
] 

Ted Yu commented on HBASE-17427:
--------------------------------

Here is simple test:
{code}
include Java

print String(1.1) == (1.1).to_s
s = java.lang.String.new("1.1")
print String(1.1) == s
{code}
true is printed for the first comparison while false is printed for the second comparison

> region_mover.rb may move region onto the same server
> ----------------------------------------------------
>
>                 Key: HBASE-17427
>                 URL: https://issues.apache.org/jira/browse/HBASE-17427
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.1.6
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>
> Intermittently, region_mover.rb got stuck waiting for region to be moved onto same server:
> {code}
> 2017-01-04 05:37:27,830|INFO|MainThread|machine.py:145 - run()|RuntimeError: Region hbase:meta,,1.1588230740
stuck on ctr-e88-1483482546062-0245-01-000007.x.com,16020,1483507665481,, newserver=ctr-e88-1483482546062-0245-01-000007.x.com,16020,1483507665481
> {code}
> This was due to the following:
> {code}
>     if currentServer and servername and currentServer == servername.to_s
> {code}
> currentServer is Java String which shouldn't be compared with ruby string directly.



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