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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14141) HBase Backup/Restore Phase 3: Filter WALs on backup to include only edits from backup tables
Date Thu, 10 Nov 2016 19:29:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15654894#comment-15654894
] 

Enis Soztutar commented on HBASE-14141:
---------------------------------------

bq. We already depend on WALs for incremental backup. If WAL is unreliable so is HBase. Backup
can't be more reliable than WAL/HBase.
Not sure whether I understand what you are saying. The above paragraph is not talking about
WAL being unreliable, but the fact that we cannot design the backup to depend on writing some
metadata reliably on WAL close. writing to WAL and writing metadata to backup table on WAL
close are very different things. 

bq. No. In this case, default mode is the way to go (what we have now).
Why are we complicating the design with two different modes, and switching and everything.
How will any user chose which one to use? I think we should stick to a single mode / solution
that will work for most of the cases rather than complicating the life of the user and also
maintaining the backup code for two different code paths.  

> HBase Backup/Restore Phase 3: Filter WALs on backup to include only edits from backup
tables
> --------------------------------------------------------------------------------------------
>
>                 Key: HBASE-14141
>                 URL: https://issues.apache.org/jira/browse/HBASE-14141
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 2.0.0
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>              Labels: backup
>             Fix For: 2.0.0
>
>




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