Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/3712
There is `GenericWriteAheadSink`, which buffers elements and writes to
Cassandra. I think this needs some more thought, maybe a design outline on the
Jira issue. I'm also not 100 % sure if the generic write-ahead sink will work
for this. @zentol might have a better answer, though.
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