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Posted to issues@flink.apache.org by "Chesnay Schepler (Jira)" <ji...@apache.org> on 2021/01/27 09:35:00 UTC

[jira] [Created] (FLINK-21161) Investigate Datadog OOM on timeout

Chesnay Schepler created FLINK-21161:
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             Summary: Investigate Datadog OOM on timeout
                 Key: FLINK-21161
                 URL: https://issues.apache.org/jira/browse/FLINK-21161
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Metrics
    Affects Versions: 1.11.3
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler


The datadog reporter sends reports to datagod via asynchronous calls made with okhttp.
okhttp buffers requests if they cannot be submitted; if any connection issues it might be possible for enough data to be buffered to cause an OOM.

By default the number of concurrent requests is set to 64. We should try to reproduce the problem, and check whether setting this to a lower value would solve it.



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