[jira] [Closed] (FLINK-26793) Flink Cassandra connector performance issue

["Martijn Visser (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-26793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martijn Visser closed FLINK-26793.
----------------------------------
    Fix Version/s: 1.16.0
       Resolution: Fixed

Addressed the concerns of this ticket by updating the documentation. 

Fixed in master: 729da7d4592664a6e9d73414f1b561366513f5f4

> Flink Cassandra connector performance issue 
> --------------------------------------------
>
>                 Key: FLINK-26793
>                 URL: https://issues.apache.org/jira/browse/FLINK-26793
>             Project: Flink
>          Issue Type: Improvement
>          Components: Connectors / Cassandra
>    Affects Versions: 1.14.4
>            Reporter: Jay Ghiya
>            Assignee: Etienne Chauchot
>            Priority: Major
>              Labels: documentation, pull-request-available
>             Fix For: 1.16.0
>
>         Attachments: Capture d’écran de 2022-04-14 16-34-59.png, Capture d’écran de 2022-04-14 16-35-07.png, Capture d’écran de 2022-04-14 16-35-30.png, jobmanager_log.txt, taskmanager_127.0.1.1_33251-af56fa_log
>
>
> A warning is observed during long runs of flink job stating “Insertions into scylla might be suffering. Expect performance problems unless this is resolved.”
> Upon initial analysis - “flink cassandra connector is not keeping instance of mapping manager that is used to convert a pojo to cassandra row. Ideally the mapping manager should have the same life time as cluster and session objects which are also created once when the driver is initialized”
> Reference: https://stackoverflow.com/questions/59203418/cassandra-java-driver-warning



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