Hi @dev@flink.apache.org<mailto:dev@flink.apache.org>,

Greetings from gehc.

This is regarding flink Cassandra connector implementation that could be 
causing the performance issue that we are facing.

The summary of the error is

"Insertions into scylla might be suffering. Expect performance problems unless 
this is resolved."

Upon doing initial analysis we figured out - "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

Can we take a look at this? Also can we help fix this ? @R, Aromal (GE 
Healthcare, consultant)<mailto:aroma...@ge.com> Is our lead dev on this.

Here is the jira issue on the same - 
https://issues.apache.org/jira/browse/FLINK-26793

-Jay

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