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Date: Wed, 28 Jun 2017 22:22:00 +0000 (UTC)
From: "Mike Drob (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-18290) Fix TestAddColumnFamilyProcedure
 and TestDeleteTableProcedure
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archived-at: Wed, 28 Jun 2017 22:22:04 -0000


    [ https://issues.apache.org/jira/browse/HBASE-18290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067356#comment-16067356 ] 

Mike Drob commented on HBASE-18290:
-----------------------------------

Do you think this is also the root behind TestRegionObserverInterface	flakiness? All the errors there are during 

{noformat}
org.junit.runners.model.TestTimedOutException: test timed out after 300000 milliseconds
	at java.lang.Thread.sleep(Native Method)
	at org.apache.hadoop.hbase.client.HBaseAdmin$ProcedureFuture.waitProcedureResult(HBaseAdmin.java:3409)
	at org.apache.hadoop.hbase.client.HBaseAdmin$ProcedureFuture.get(HBaseAdmin.java:3339)
	at org.apache.hadoop.hbase.client.HBaseAdmin.get(HBaseAdmin.java:1962)
	at org.apache.hadoop.hbase.client.HBaseAdmin.deleteTable(HBaseAdmin.java:558)
	at org.apache.hadoop.hbase.HBaseTestingUtility.deleteTable(HBaseTestingUtility.java:1747)
	at org.apache.hadoop.hbase.coprocessor.TestRegionObserverInterface.testRecovery(TestRegionObserverInterface.java:616)
{noformat}

or because it is a timeout it might be a different failure?

> Fix TestAddColumnFamilyProcedure and TestDeleteTableProcedure
> -------------------------------------------------------------
>
>                 Key: HBASE-18290
>                 URL: https://issues.apache.org/jira/browse/HBASE-18290
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Assignee: stack
>             Fix For: 2.0.0
>
>
> These two tests don't pass. Turns out the cause was interesting.
> We added a workaround for case where procedure WAL could have procs out of order.
> HBASE-18216 [AMv2] Workaround for HBASE-18152, corrupt procedure WAL
> If we find a procedure that is not 'increasing' -- of a later timestamp or procid -- then we'd skip the application of the 'old' proc. The workaround was until we figure in what scenarios we can write procedures out of order (seems to be rare and high-concurrency... TBD).
> These two tests trip FAILs and ROLLBACKs (double delete of table or disable of an already disabled table). They are good tests. But procedures that get marked FAIL or ROLLEDBACK will have procids that are less than current. Makes it so we skipped adding the ROLLBACK and so finishing up the procedure.


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