Yida Wu created IMPALA-14763:
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Summary: Add memory guard before decompressing queries in
admissiond
Key: IMPALA-14763
URL: https://issues.apache.org/jira/browse/IMPALA-14763
Project: IMPALA
Issue Type: Bug
Components: Backend
Reporter: Yida Wu
Assignee: Yida Wu
When admissiond is close to its memory limit and a very large query is
dequeued, decompression (when compression is enabled) can push memory usage
over the limit and cause OOM.
We should add a protection similar to IMPALA-14493 to reject the queued query
before decompression if current_memory + uncompressed_size > memory_limit.
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