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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16637) Add endpoint coprocessor to speed up queries to hbase:backup table
Date Thu, 15 Sep 2016 19:26:20 GMT
Ted Yu created HBASE-16637:
------------------------------

             Summary: Add endpoint coprocessor to speed up queries to hbase:backup table
                 Key: HBASE-16637
                 URL: https://issues.apache.org/jira/browse/HBASE-16637
             Project: HBase
          Issue Type: Improvement
            Reporter: Ted Yu


Currently BackupSystemTable uses HTable API to query hbase:backup table.
In many scenarios, this is inefficient because filtering is done at client side.

With more information being recorded in hbase:backup table (such as bulk load descriptor -
see HBASE-14417), we should perform filtering on server side.

An endpoint coprocessor would serve this purpose.
e.g. without endpoint coprocessor, incremental restore would either bring all bulk load descriptors
to client followed by filtering for relevant tables or, issue two queries - one for rows related
to the tables being restored and another query to bring down the bulk load descriptors.



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