Lars Hofhansl created HBASE-10247:
-------------------------------------

             Summary: Client promises about timestamps
                 Key: HBASE-10247
                 URL: https://issues.apache.org/jira/browse/HBASE-10247
             Project: HBase
          Issue Type: Brainstorming
            Reporter: Lars Hofhansl
            Priority: Minor


This is to start a discussion about timestamp promises declared per table of CF.
For example if a client promises only monotonically increasing timestamps (or 
no custom set timestamps) and VERSIONS=1, we can aggressively and easily remove 
old versions of the same row/fam/col from the memstore before we flush, just by 
supplying a comparator that ignores the timestamp (i.e. two KV just differing 
by TS would be considered equal).
That would increase the performance of counters significantly.




--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Reply via email to