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Posted to issues@hbase.apache.org by "Alexey Zotov (JIRA)" <ji...@apache.org> on 2012/06/23 16:59:42 UTC
[jira] [Commented] (HBASE-4671) HBaseTestingUtility unable to
connect to regionserver because of 127.0.0.1 / 127.0.1.1 discrepancy
[ https://issues.apache.org/jira/browse/HBASE-4671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399966#comment-13399966 ]
Alexey Zotov commented on HBASE-4671:
-------------------------------------
It's actual for Ubuntu 12.04 too.
> HBaseTestingUtility unable to connect to regionserver because of 127.0.0.1 / 127.0.1.1 discrepancy
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-4671
> URL: https://issues.apache.org/jira/browse/HBASE-4671
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.90.4
> Environment: At least Ubuntu 11.10 with a default hosts file.
> Reporter: Ferdy Galema
>
> When /etc/hosts contains following lines (and this is not uncommon) it will cause HBaseTestingUtility to malfunction.
> 127.0.0.1 localhost
> 127.0.1.1 myMachineName
> Symptoms:
> 2011-10-25 17:38:30,875 WARN master.AssignmentManager - Failed assignment of -ROOT-,,0.70236052 to serverName=localhost,34462,1319557102914, load=(requests=0, regions=0, usedHeap=46, maxHeap=865), trying to assign elsewhere instead; retry=0
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed setting up proxy interface org.apache.hadoop.hbase.ipc.HRegionInterface to /127.0.0.1:34462 after attempts=1
> because
> 2011-10-25 17:38:28,371 INFO regionserver.HRegionServer - Serving as localhost,34462,1319557102914, RPC listening on /127.0.1.1:34462, sessionid=0x1333bbb7a180002
> caused by /127.0.0.1:34462 vs /127.0.1.1:34462
> Workaround:
> Changing 127.0.1.1 to 127.0.0.1 works.
> Permanent solution:
> Dunno, my understanding of inner workings is not sufficient enough. Although it seems like it has something to do with changing the machine name from myMachineName to localhost during the test:
> 2011-10-25 17:38:28,056 INFO regionserver.HRegionServer - Master passed us address to use. Was=myMachineName:34462, Now=localhost:34462
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