Description
Currently add a new group perform the following steps:
hbase(main):001:0> add_rsgroup 'mygroup' Took 0.3840 seconds hbase(main):002:0> move_servers_rsgroup 'mygroup',['hbase-rs-01:16030','hbase-rs-02:16030'] Took 3.5040 seconds hbase(main):003:0> move_tables_rsgroup 'mygroup',['example'] Took 0.2710 seconds
1. move_servers_rsgroup will unassign all regions on hbase-rs-01 and hbase-rs-02
2. move_tables_rsgroup will also reassign all the regions of the table example.
This will lead to a large number of regions to migrate and affect the data locality.
However, some regions of the table that are distributed on hbase-rs-01 and hbase-rs-02, do not need to be moved.
So,we need a new shell command move_servers_tables_rsgroup which minimizes the number of regions needed to move.
Attachments
Attachments
Issue Links
- is related to
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HBASE-15631 Backport Regionserver Groups (HBASE-6721) to branch-1
- Closed