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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4052) Enabling a table after master switch is not allowing table scan. Throws NotServingRegionException
Date Tue, 12 Jul 2011 05:33:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063728#comment-13063728
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ramkrishna.s.vasudevan commented on HBASE-4052:
-----------------------------------------------

Hi Ted,
I think the test case should work fine in the 0.90 branch.
In the trunk when we do a switch the RS is not able to connect to the new Master and we get

2011-07-12 11:01:22,602 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to checkin
2011-07-12 11:01:25,602 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to checkin
2011-07-12 11:01:28,602 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to checkin

So when this test case is executing also we get the same problem.

I will try to find why this behaviour is found in trunk and not in 0.90 branch.  Can you please
tell me if the
test case is passing in 0.90 branch.  Because i have verified locally by running all the test
cases in 0.90 branch and the testcases were passing.
{noformat}
Running org.apache.hadoop.hbase.master.TestMasterRestartAfterDisablingTable
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 26.148 sec
Running org.apache.hadoop.hbase.regionserver.TestFSErrorsExposed
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 45.383 sec
Running org.apache.hadoop.hbase.client.replication.TestReplicationAdmin
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.044 sec
Running org.apache.hadoop.hbase.regionserver.TestScanDeleteTracker
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.234 sec
Running org.apache.hadoop.hbase.client.TestMetaScanner

{noformat}


> 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: 4052.txt, Disabled.bmp, Disabling-1.bmp, Disabling-2.bmp, HBASE-4052-1-0.90_1.patch,
HBASE-4052-1-_TestCode.patch, HBASE-4052-1-trunk_1.patch, 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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