Details
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Type:
Bug
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Status: Resolved
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Priority:
Critical
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Resolution: Fixed
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Affects Version/s: Impala 1.4
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Fix Version/s: Impala 2.2
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Component/s: None
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Labels:None
Description
repro:
for i in {1..1000}; do impala-shell.sh -q "select * from functional.alltypes_datasource limit 1;" -B --quiet &> /tmp/a; done
The perm-gen memory slowly grows as reported by the /metrics debug page.
external-data-source-executor was calling JniUtil::LocalToGlobalRef
which adds global refs to a static list and thus never get GC'd.