kumar vishal created CARBONDATA-545:
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Summary: Carbon Query GC Problem
Key: CARBONDATA-545
URL: https://issues.apache.org/jira/browse/CARBONDATA-545
Project: CarbonData
Issue Type: Improvement
Components: data-query
Reporter: kumar vishal
Assignee: kumar vishal
Fix For: 1.0.0-incubating
Problem
There are lots of gc when carbon is processing more number of records during
query, which is impacting carbon query performance.To solve this gc problem
happening when query output is too huge or when more number of records are
processed.
Solution
Currently we are storing all the data which is read during query from carbon
data file in heap, when number of query output is huge it is causing more gc.
Instead of storing in heap we can store this data in offheap and will clear
when scanning is finished for that query.
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