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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2017/09/07 05:38:00 UTC

[jira] [Commented] (PHOENIX-4176) Reduce chances of tests flapping with ColumnFamilyNotFoundException for HBase 1.x

    [ https://issues.apache.org/jira/browse/PHOENIX-4176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16156501#comment-16156501 ] 

James Taylor commented on PHOENIX-4176:
---------------------------------------

If we turn off online schema update, then we need to disable and enable the table. Are we doing that in the code already? Also, since we have this on in production, is this potentially a real production issue that we need to deal with?

> Reduce chances of tests flapping with ColumnFamilyNotFoundException for HBase 1.x
> ---------------------------------------------------------------------------------
>
>                 Key: PHOENIX-4176
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4176
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>            Assignee: Samarth Jain
>         Attachments: PHOENIX-4176.patch
>
>
> In HBase 1.x, when adding a new column family, the check to detect whether the HTableDescriptor is updated isn't enough. Tests that add a new column family run the risk of flapping when number of regions on the table are high (since the column family has to be added to all the regions). Till we figure out a permanent solution for this, we can possibly decrease chances of such tests from flapping by reducing number of regions/pre-splits and possibly configuring hbase.online.schema.update.enable to false in our tests. 



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