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https://issues.apache.org/jira/browse/HBASE-4052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13062166#comment-13062166
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Ted Yu commented on HBASE-4052:
-------------------------------
Running your unit test, I got:
{code}
testForCheckingIfEnableAndDisableWorksFineAfterSwitch(org.apache.hadoop.hbase.master.TestMasterRestartAfterDisablingTable)
Time elapsed: 24.594 sec <<< ERROR!
java.lang.reflect.UndeclaredThrowableException
at $Proxy12.isMasterRunning(Unknown Source)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:553)
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:101)
at
org.apache.hadoop.hbase.HBaseTestingUtility.getHBaseAdmin(HBaseTestingUtility.java:1162)
at
org.apache.hadoop.hbase.master.TestMasterRestartAfterDisablingTable.testForCheckingIfEnableAndDisableWorksFineAfterSwitch(TestMasterRestartAfterDisablingTable.java:105)
{code}
I think we should wait for backup master to come up before doing:
{code}
log("Enabling table\n");
TEST_UTIL.getHBaseAdmin().enableTable(table);
{code}
> Enabling a table after master switch is not allowing table scan. Throws
> NotServingRegionException
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-4052
> URL: https://issues.apache.org/jira/browse/HBASE-4052
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.3
> Environment: Linux
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.90.4
>
> Attachments: Disabled.bmp, Disabling-1.bmp, Disabling-2.bmp,
> HBASE-4052.patch, TestMasterRestartAfterDisablingTable.java
>
>
> Following is the scenario:
> Start RS and Active and standby masters
> Create table and insert data.
> Disable the table.
> Stop the active master and switch to the standby master.
> Now enable the table.
> Do a scan on the enabled table.
> NotServingRegionException is Thrown.
> But the same works well when we dont switch the master.
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