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https://issues.apache.org/jira/browse/FLINK-26793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17510521#comment-17510521
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Jay Ghiya commented on FLINK-26793:
-----------------------------------

[~martijnvisser] thankyou for explaining the gravity of the current situation. 
Ready to contribute as flink has been a fundamental block for our product. 
always grateful for that. [~echauchot] count me in. But i need information 
about latest source/sink api and the old source/sink api that flink connector 
is based on. i will also try to pull people from my current org.

> 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
>            Priority: Major
>
> 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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