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Posted to issues@flink.apache.org by "Maximilian Michels (Jira)" <ji...@apache.org> on 2023/03/06 16:35:00 UTC

[jira] [Resolved] (FLINK-31299) PendingRecords metric might not be available

     [ https://issues.apache.org/jira/browse/FLINK-31299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maximilian Michels resolved FLINK-31299.
----------------------------------------
    Release Note: Work around idle Kafka readers not emitting the pendingRecords metric
      Resolution: Fixed

> PendingRecords metric might not be available
> --------------------------------------------
>
>                 Key: FLINK-31299
>                 URL: https://issues.apache.org/jira/browse/FLINK-31299
>             Project: Flink
>          Issue Type: Bug
>          Components: Autoscaler, Kubernetes Operator
>            Reporter: Maximilian Michels
>            Assignee: Maximilian Michels
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: kubernetes-operator-1.5.0
>
>
> The Kafka pendingRecords metric is only initialized on receiving the first record. For empty topics or checkpointed topics without any incoming data, the metric won't appear.
> We need to handle this case in the autoscaler and allow downscaling.



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