HBaseTestingUtility unable to connect to regionserver because of 127.0.0.1 /
127.0.1.1 discrepancy
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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
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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