Read this: https://docs.datastax.com/en/cql/3.3/cql/cql_reference/batch_r.html
Please use batch (any type of batch) for statements that only concerns a single
partition, otherwise it cause a lot of performance degradation on your cluster
and after a while throughput would be alot less than parallel single statements
with executeAsync. Sent using Zoho Mail ============ Forwarded message
============ From : wxn...@zjqunshuo.com To : "user"<user@cassandra.apache.org>
Date : Thu, 01 Nov 2018 10:48:33 +0330 Subject : A quick question on unlogged
batch ============ Forwarded message ============ Hi All, What's the difference
between logged batch and unlogged batch? I'm asking this question it's because
I'm seeing the below WARNINGs after a new app started writting to the cluster.
WARNING in system.log: Unlogged batch covering 135 partitions detected against
table [cargts.eventdata]. You should use a logged batch for atomicity, or
asynchronous writes for performance Best regards, -Simon
