Bharath Vissapragada created HBASE-24590:
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Summary: Clone snapshot with optional table level property
overrides
Key: HBASE-24590
URL: https://issues.apache.org/jira/browse/HBASE-24590
Project: HBase
Issue Type: Improvement
Components: API, master, shell
Affects Versions: 1.6.0, 3.0.0-alpha-1, 2.3.0
Reporter: Bharath Vissapragada
We have this use case where we try to clone from snapshots of a table with
replication enabled. Cloning process just reads the TableDescriptor from the
manifest and uses it for the new target table.
In our case, the moment we clone it, replication kicks in and attempts to
replicate table to peers but since the target table doesn't exist, it keeps
throwing TNFE in a loop. I propose to add additional *optional* parameters to
clone_snapshot that takes the target table property overrides (table leve/cf
level).
For example:
{noformat}
clone_snapshot 'snapshotName', 'tableName' # default
clone_snapshot 'snapshotName', 'tableName', {NAME => 'f1', REPLICATION_SCOPE =>
0 }
clone_snapshot 'snapshotName, 'tableName', {MERGE_ENABLED => false}
.....
{noformat}
Implementation wise, this just adds a {{ModifyTableProcedure}} as a child
procedure (if args are provided) for {{CloneSnapshotProcedure}} after
{{CLONE_SNAPSHOT_ADD_TO_META}}, so we reuse most of the "modifyTable" code.
Also, since clone puts the table in a disabled state, using
"ModifyTableProcedure" shouldn't cause any issues.
Thoughts? Is there any easier way to do it?
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