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Posted to issues@flink.apache.org by "Jun Qin (Jira)" <ji...@apache.org> on 2020/07/24 09:34:00 UTC

[jira] [Created] (FLINK-18702) Flink elasticsearch connector leaks threads and classloaders thereof

Jun Qin created FLINK-18702:
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             Summary: Flink elasticsearch connector leaks threads and classloaders thereof
                 Key: FLINK-18702
                 URL: https://issues.apache.org/jira/browse/FLINK-18702
             Project: Flink
          Issue Type: Bug
          Components: Connectors / ElasticSearch
    Affects Versions: 1.10.1
            Reporter: Jun Qin


Flink elasticsearch connector leaking threads and classloaders thereof.  This results in OOM Metaspace when ES sink fails and restarted many times. 

This issue is visible in Flink 1.10 but not in 1.11 because Flink 1.11 does not create new class loaders in case of recoveries ([FLINK-16408|https://issues.apache.org/jira/browse/FLINK-16408])



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