Ádám Szita created HIVE-22820:
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Summary: Proactive LLAP cache eviction
Key: HIVE-22820
URL: https://issues.apache.org/jira/browse/HIVE-22820
Project: Hive
Issue Type: Improvement
Components: llap
Reporter: Ádám Szita
Assignee: Ádám Szita
Currently LLAP cache eviction is only based on an eviction policy, that is
reactive in a way that it only evicts buffers whenever there's space required
for new ones.
It does not take for example dropped entities (partitions, tables or even dbs)
into consideration. We should also implement a proactive side of the eviction
that does this for us, and in turn could increase overall cache hit ratios.
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