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https://issues.apache.org/jira/browse/HBASE-14417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15622809#comment-15622809
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Ted Yu commented on HBASE-14417:
--------------------------------
hbase:backup table is used to retrieve Set of tables which have gone through
full backup after region server comes up (since the region server may have
missed prior zk notifications).
Afterwards, BulkLoadHandler would receive notifications from zookeeper and
doesn't need to poll hbase:backup table.
> Incremental backup and bulk loading
> -----------------------------------
>
> Key: HBASE-14417
> URL: https://issues.apache.org/jira/browse/HBASE-14417
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 2.0.0
> Reporter: Vladimir Rodionov
> Assignee: Ted Yu
> Priority: Critical
> Labels: backup
> Fix For: 2.0.0
>
> Attachments: 14417.v1.txt, 14417.v11.txt, 14417.v13.txt,
> 14417.v2.txt, 14417.v21.txt, 14417.v23.txt, 14417.v24.txt, 14417.v6.txt
>
>
> Currently, incremental backup is based on WAL files. Bulk data loading
> bypasses WALs for obvious reasons, breaking incremental backups. The only way
> to continue backups after bulk loading is to create new full backup of a
> table. This may not be feasible for customers who do bulk loading regularly
> (say, every day).
> Google doc for design:
> https://docs.google.com/document/d/1ACCLsecHDvzVSasORgqqRNrloGx4mNYIbvAU7lq5lJE
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