Rekha Joshi created HBASE-10711:
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Summary: Savepoint, Rollback features on Hbase Shell and API
Key: HBASE-10711
URL: https://issues.apache.org/jira/browse/HBASE-10711
Project: HBase
Issue Type: New Feature
Components: Admin, shell
Affects Versions: 0.94.17
Reporter: Rekha Joshi
In parallel to SQLWorld, Hbase needs to have easy feature to
savepoint/rollback/commit.
This functionality can help retrieve table state before a set of commands are
executed.Especially if one inadvertently drops a table, rollback is a lifesaver.
SAVEPOINT < savepoint_name >;
ROLLBACK [TO SAVEPOINT < savepoint_name>];
COMMIT;
This internally will take a snapshot of table(s) when a command 'savepoint' is
executed on hbase shell/api.Each savepoint takes the snapshot , and stores the
map with savepoint id to snapshot taken.Will need a retrieval from the last-est
savepoint id.
Given that it might take some time, this savepoint is the users option if one
is into too many operations and one operation goes wrong, they can still start
from save point.For better perf, it would be nice to provide command set tables
'a','b','c' and the savepoint command then takes the snapshots of only those
tables rather than all.
Maybe i am a burnt child dreading the fire, but thoughts?
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