[jira] [Resolved] (CALCITE-4992) RestClient resource leak in Elasticsearch adapter

["Julian Hyde (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde resolved CALCITE-4992.
----------------------------------
    Resolution: Fixed

Fixed in [h4cc2d80b|ttps://github.com/apache/calcite/commit/4cc2d80b1fa96b18285cfc494869568e7576e54c]; thanks for the PR, [~dzamo]!

[~zabetak], I agree, configurable cache size would be a good future improvement. Also configurable expiration interval.

> 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
>            Assignee: James Turton
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.31.0
>
>          Time Spent: 5h 20m
>  Remaining Estimate: 0h
>
> 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 have come to believe (but not proven) that they are associated with Drill's ElasticSearch plugin, and that in turn makes use of Calcite's ElasticSearch adapter.



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