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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2832) Priorities and multi-threading for MemStore flushing
Date Tue, 13 Jul 2010 00:45:51 GMT
Priorities and multi-threading for MemStore flushing
----------------------------------------------------

                 Key: HBASE-2832
                 URL: https://issues.apache.org/jira/browse/HBASE-2832
             Project: HBase
          Issue Type: New Feature
          Components: regionserver
            Reporter: Jonathan Gray
            Assignee: Jonathan Gray
            Priority: Critical
             Fix For: 0.90.0


Similar to HBASE-1476 and HBASE-2646 which are for compactions, but do this for flushes.

Flushing when we hit the normal flush size is a low priority flush.  Other types of flushes
(heap pressure, blocking client requests, etc) are high priority.

Should have a tunable number of concurrent flushes.

Will use the {{HBaseExecutorService}} and {{HBaseEventHandler}} introduced from master/zk
changes.

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