[jira] Assigned: (HBASE-999) Up versions on historian and keep history of deleted regions for a while rather than delete immediately

["stack (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack reassigned HBASE-999:
---------------------------

    Assignee: stack

> Up versions on historian and keep history of deleted regions for a while rather than delete immediately
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-999
>                 URL: https://issues.apache.org/jira/browse/HBASE-999
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.19.0
>
>         Attachments: historian-v2.patch, historian.patch
>
>
> Since removal of master logging of all rows of catalog tables, there is a hole when it comes to debugging what happened in hbase at some time in the past.  The region historian is the place we keep up region history only we've been deleting old history when region is deleted.  Instead, lets not delete region history but keep it around a while, say a week.  Also, keep all versions -- currently its set to 1.
> To do this, may need to also so HBASE-998.

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