[DRILL-1992] Add more stats for HashJoinBatch and HashAggBatch

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.8.0
• Fix Version/s: Future
• Component/s: Execution - Relational Operators
• Assignee: Unassigned
• Reporter: Venki Korukanti
• Created: 13/Jan/15 01:42
• Updated: 01/Oct/15 16:36

Description

Adding more stats to analyze the memory usage of HashJoinBatch and HashAggBatch.

HashJoinBatch
+ HASHTABLE_MEMORY_ALLOCATION
+ HASHTABLE_NUM_BATCHHOLDERS
+ HASHJOINHELPER_MEMORY

HashAgg
+ HASHTABLE_MEMORY_ALLOCATION
+ HASHTABLE_NUM_BATCHHOLDERS
+ HASHAGG_MEMORY
+ HASHAGG_NUM_BATCHHOLDERS

Cleanup:
+ Prefix "HASHTABLE_" to existing HashTable metrics such as NUM_BUCKETS.

Issue Links

• depends upon: DRILL-1942 Improve off-heap memory usage tracking