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https://issues.apache.org/jira/browse/HBASE-14135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075705#comment-16075705
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Vladimir Rodionov commented on HBASE-14135:
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{quote}
Why is this backup stuff in hbase-server? BackupAdmin, BackupMergeJob, etc. and
not in hbase-backup? This is phase 3. I'd have thought the backup module would
be well along by now (Where do I go to read on current state of backup
feature?) hbase-server is already overly fat with test suite that takes way too
long, etc., etc. Lets not compound.
{quote}
We have separate JIRA for modularization : HBASE-17614. This is part Phase 3. I
can start working on that once this one is committed. Long running tests are
well-known issue for us. and again we have a separate JIRA for that as well.
{quote}
BackupMergeJob is a MR job or something?
{quote}
No it is just a generic Job which can be configured and executed
{quote}
mergeBackups doesn't return a future? It is synchronous? Doc says nothing on
this.
{quote}
Yes, it is synchronous. All operations are client-driven.
Formatting will be fixed in the next patch.
> HBase Backup/Restore Phase 3: Merge backup images
> -------------------------------------------------
>
> Key: HBASE-14135
> URL: https://issues.apache.org/jira/browse/HBASE-14135
> Project: HBase
> Issue Type: New Feature
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Priority: Blocker
> Labels: backup
> Fix For: HBASE-7912
>
> Attachments: HBASE-14135-v1.patch, HBASE-14135-v3.patch
>
>
> User can merge incremental backup images into single incremental backup image.
> # Merge supports only incremental images
> # Merge supports only images for the same backup destinations
> Command:
> {code}
> hbase backup merge image1,image2,..imageK
> {code}
> Example:
> {code}
> hbase backup merge backup_143126764557,backup_143126764456
> {code}
> When operation is complete, only the most recent backup image will be kept
> (in above example - backup_143126764557) as a merged backup image, all other
> images will be deleted from both: file system and backup system tables,
> corresponding backup manifest for the merged backup image will be updated to
> remove dependencies from deleted images. Merged backup image will contains
> all the data from original image and from deleted images.
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