James Turton created CALCITE-4992:
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Summary: RestClient resource leak in ElasticSearch adapter
Key: CALCITE-4992
URL: https://issues.apache.org/jira/browse/CALCITE-4992
Project: Calcite
Issue Type: Bug
Components: elasticsearch-adapter
Affects Versions: 1.29.0
Reporter: James Turton
Fix For: 1.30.0
RestClient instances should receive a `close()`call at the end of their
lifecyle, as documented here.
[https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-low-usage-initialization.html]
We have monitored file descriptor leaks on systems running Apache Drill and
found that they are associated with Drill's ElasticSearch plugin, and that in
turn makes use of Calcite's ElasticSearch adapter.
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