Priorities and multi-threading for MemStore flushing
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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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