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https://issues.apache.org/jira/browse/HBASE-14135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111735#comment-16111735
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Vladimir Rodionov commented on HBASE-14135:
-------------------------------------------
{quote}
It looks like there is the potential for files in HDFS to be orphaned (via a
hard JVM crash where "deleteOnExit" wouldn't fire) and for entries in the
hbase:backup table to be orphaned. The tooling to clean these up is great –
should we have some automation inside of the Master to try to catch these
scenarios and proactively clean it up for the user?
{quote}
This is not only for backup, right, [~elserj]? Hard crash can happen during
regular HBase operation, do we have any automation tools in Master to address
potential issues?
> 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: 2.0.0
>
> Attachments: HBASE-14135-v3.patch, HBASE-14135-v5.patch,
> HBASE-14135-v6.patch, HBASE-14135-v7.patch, HBASE-14135-v8.patch,
> HBASE-14135-v9.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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