Enis Soztutar created HBASE-14302:
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Summary: TableSnapshotInputFormat should not create back
references when restoring snapshot
Key: HBASE-14302
URL: https://issues.apache.org/jira/browse/HBASE-14302
Project: HBase
Issue Type: Bug
Reporter: Enis Soztutar
Assignee: Enis Soztutar
Fix For: 2.0.0, 1.2.0, 1.3.0, 1.0.3, 1.1.3
TableSnapshotInputFormat restores the snapshot to a temporary directory that is
outside the HBase's root directory so that it can read from the restored
snapshot and also refer to hfiles in the actual root directory.
In restoring the snapshot, we create new hfilelinks in the ephemeral location.
Creating new hfile links also creates "back references" for GC. These back
references are dangling since the restore location is outside the root dir, and
requires a WRITE permission to the root dir (as opposed to just READ
permission) to be able to run the MR-over-snapshot job.
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