[IHBASE] Idx memory allocation fix
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Key: HBASE-2206
URL: https://issues.apache.org/jira/browse/HBASE-2206
Project: Hadoop HBase
Issue Type: Bug
Reporter: stack
Fix For: 0.20.4
Idx memory allocation fix
- Includes a modification to core - MemStore was added with a numKeyValues
query
- It optimizes the number of memory allocation required to rebuild the index.
This is a major fix - it reduces the heap fragmentation and helped
postpone/fix (not yet sure which of those) the region server crashing due to
those long GC periods on a write-intensive setup
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