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Date: Sun, 28 Jun 2015 14:59:04 +0000 (UTC)
From: "Ted Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Resolved] (HBASE-12710) TestAssignmentManager may fail due
 to illegal character in namespace
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     [ https://issues.apache.org/jira/browse/HBASE-12710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu resolved HBASE-12710.
----------------------------
    Resolution: Cannot Reproduce

> TestAssignmentManager may fail due to illegal character in namespace
> --------------------------------------------------------------------
>
>                 Key: HBASE-12710
>                 URL: https://issues.apache.org/jira/browse/HBASE-12710
>             Project: HBase
>          Issue Type: Test
>            Reporter: Ted Yu
>            Priority: Minor
>         Attachments: 12710-1.0.txt, org.apache.hadoop.hbase.master.TestAssignmentManager-output.txt
>
>
> I saw TestAssignmentManager#testMasterRestartWhenTableInEnabling fail when running test suite on branch-1:
> {code}
> testMasterRestartWhenTableInEnabling(org.apache.hadoop.hbase.master.TestAssignmentManager)  Time elapsed: 0.714 sec  <<< FAILURE!
> java.lang.AssertionError: Table should be enabled.
>         at org.junit.Assert.fail(Assert.java:88)
>         at org.junit.Assert.assertTrue(Assert.java:41)
>         at org.apache.hadoop.hbase.master.TestAssignmentManager.testMasterRestartWhenTableInEnabling(TestAssignmentManager.java:1023)
> {code}
> In test output, I saw:
> {code}
> 2014-12-18 00:45:18,230 FATAL [kiyo:38816.activeMasterManager] master.HMaster(1802): Unhandled exception. Starting shutdown.
> java.lang.IllegalArgumentException: Illegal character <10> at 0. Namespaces can only contain 'alphanumeric characters': i.e. [a-zA-Z_0-9]:
> ^Ehbase^R^Dmeta
>         at org.apache.hadoop.hbase.TableName.isLegalNamespaceName(TableName.java:215)
>         at org.apache.hadoop.hbase.TableName.isLegalNamespaceName(TableName.java:204)
>         at org.apache.hadoop.hbase.TableName.<init>(TableName.java:307)
>         at org.apache.hadoop.hbase.TableName.createTableNameIfNecessary(TableName.java:344)
>         at org.apache.hadoop.hbase.TableName.valueOf(TableName.java:465)
>         at org.apache.hadoop.hbase.protobuf.ProtobufUtil.toTableName(ProtobufUtil.java:2686)
>         at org.apache.hadoop.hbase.HTableDescriptor.convert(HTableDescriptor.java:1525)
>         at org.apache.hadoop.hbase.HTableDescriptor.parseFrom(HTableDescriptor.java:1487)
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.readTableDescriptor(FSTableDescriptors.java:526)
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptorForTableDirectory(FSTableDescriptors.java:730)
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptor(FSTableDescriptors.java:706)
>         at org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptor(FSTableDescriptors.java:693)
>         at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:466)
>         at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:145)
>         at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:125)
>         at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:592)
> {code}
> But running TestAssignmentManager standalone, I don't see the above exception.
> Since TestAssignmentManager is a medium test, the above exception was likely caused by concurrent tests.
> TestAssignmentManager should be categorized as large test.



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