Taewoo Kim created ASTERIXDB-1442:
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Summary: Global memory management is required
Key: ASTERIXDB-1442
URL: https://issues.apache.org/jira/browse/ASTERIXDB-1442
Project: Apache AsterixDB
Issue Type: Improvement
Reporter: Taewoo Kim
We set a few memory usage related parameter such as sort-memory, group-memory
and join-memory in asterix-configuration.xml. There are a few more parameters
as well. An issue is that each parameter is used individually by Asterix
codebase and there is no global management regarding these parameters.
Thus, for example, we can't guard a situation where memory allocation of sub
components such as sort-memory and group-memory is greater than the NC java
heap size.
It would be really nice if we have a query memory budgeting feature, too. If it
is evident that a query will exceed certain memory budget, we can warn users
rather than issuing runtime Out Of Memory error.
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