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Vladimir Rodionov commented on HBASE-14141:
-------------------------------------------
OK, go ahead
> 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
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Priority: Blocker
> Labels: backup
> Fix For: 2.0.0
>
> Attachments: HBASE-14141.HBASE-14123.v1.patch, HBASE-14141.v1.patch, HBASE-14141.v2.patch,
HBASE-14141.v4.patch, HBASE-14141.v5.patch, HBASE-14141.v6.patch
>
>
> h2. High level design overview
> * When incremental backup request comes for tables {t} we select all the tables already
registered in a backup system - {T} and union them with {t}, which results in a new table
set - U(t, T)
> * For every table K from U(t,T) we perform the following:
> ** Convert new WAL files into HFile applying table filter K (only edits for table T will
pass the filter)
> ** Move these HFile(s) to backup destination
> During restore (incremental):
> * We run full restore first
> * Then collect all HFiles from intermediate incremental images and run them through HFileSplitterJob,
which splits files into a current tables region boundaries
> * Load these files using LoadIncrementalHFiles tool
>
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