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https://issues.apache.org/jira/browse/HBASE-14417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15453728#comment-15453728
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Vladimir Rodionov commented on HBASE-14417:
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{quote}
Suppose there're two backup sets involving common table(s). The bulk loaded
hfiles for the common table should be shared by the two backups.
{quote}
Its fine. We keep backup data per table (in incremental mode), means, that we
need ship bulk load only once to backup destination. Design doc, [~tedyu]?
> 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: Vladimir Rodionov
> Priority: Critical
> Labels: backup
> Fix For: 2.0.0
>
>
> 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).
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