James Turton created DRILL-8268:
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Summary: Fix Hadoop 2 and Netty lib exclusions, REST mem limiter
disabled by default
Key: DRILL-8268
URL: https://issues.apache.org/jira/browse/DRILL-8268
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.20.1
Reporter: James Turton
Assignee: James Turton
Fix For: 1.20.2
New exclusions of slf4j-reload4j are required in the Hadoop 2 profile, probably
due to the upgrade of Hadoop from 2.10.1 to 2.10.2. The netty-all metapackage
entered the dependency tree with the change introducing the Netty bom bringing
many uneeded libs with it.
The heap memory usage limiting logic in the REST server is disabled by default
since query results are streamed. This change aims to let the Java GC to now do
its job without interference and if that results in OOM under a constant load
then there is good evidence for a heap leak which must be tracked and
completely resolved anyway, not mitigated or "swept under a rug".
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