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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15094) Selection of WAL files eligible for incremental backup is broken
Date Wed, 13 Jan 2016 00:59:39 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Rodionov updated HBASE-15094:
--------------------------------------
    Description: 
We should add to a selection WAL files which have been copied over by different backup sessions
and which are newer than the most recent files processed for a given table. Currently, we
look for WAL files only in a files system (WALs and OldWALs directories)

Scenario

Backup T1
Backup T2

add WAL1

Backup T1 (WAL1 becomes eligible for deletion)

some time later

Backup T2 (WAL1 can be deleted by this time and won't get it into WAL file list for T2)



  was:
We should add to a selection WAL files which have been copied over by different backup sessions
and which are newer than the most recent files processed for a given table. Currently, we
look for WAL files only in a files system (WALs and OldWALs directories)

Scenario

Backup T1
Backup T2

add WAL1

Backup T1 (WAL1 becomes eligible for deletion)

- some time later

Backup T2 (WAL1 can be deleted by this time and won't get it into WAL file list for T2)




> Selection of WAL files eligible for incremental backup is broken
> ----------------------------------------------------------------
>
>                 Key: HBASE-15094
>                 URL: https://issues.apache.org/jira/browse/HBASE-15094
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>             Fix For: 2.0.0
>
>
> We should add to a selection WAL files which have been copied over by different backup
sessions and which are newer than the most recent files processed for a given table. Currently,
we look for WAL files only in a files system (WALs and OldWALs directories)
> Scenario
> Backup T1
> Backup T2
> add WAL1
> Backup T1 (WAL1 becomes eligible for deletion)
> some time later
> Backup T2 (WAL1 can be deleted by this time and won't get it into WAL file list for T2)



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