Zhihong Ted Yu created HBASE-6284:
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Summary: Introduce HRegion#doMiniBatchDelete()
Key: HBASE-6284
URL: https://issues.apache.org/jira/browse/HBASE-6284
Project: HBase
Issue Type: Bug
Reporter: Zhihong Ted Yu
>From Anoop under thread 'Can there be a doMiniBatchDelete in HRegion':
The HTable#delete(List<Delete>) groups the Deletes for the same RS and make one
n/w call only. But within the RS, there will be N number of delete calls on the
region one by one. This will include N number of HLog write and sync. If this
also can be grouped can we get better performance for the multi row delete.
I have made the new miniBatchDelete () and made the HTable#delete(List<Delete>)
to call this new batch delete.
Just tested initially with the one node cluster. In that itself I am getting a
performance boost which is very much promising.
Only one CF and qualifier.
10K total rows delete with a batch of 100 deletes. Only deletes happening on
the table from one thread.
With the new way the net time taken is reduced by more than 1/10
Will test in a 4 node cluster also. I think it will worth doing this change.
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