Spring data cassandra CrudRepository save issue : some messages are not getting inserted

Question

To insert a message in Cassandra Column Family with primary key messageId (type: UUID ) I am using Spring data Cassandra CrudRepository save method. When we run the load with thousands of requests coming per second (2k-3k) with message body size of 40 kb, the save method does not throw any exception. But while fetching them I observe that some messages are missing in database!

Note: When we use small message body (100 bytes) then we don't observe such problem.

Please suggest how can i resolve this ? Should not i use CrudRepository save method?

OR I just want to know how to know that the save is successful or not ?

Answer 1

The issue was related to consistency level. We were using default consistency level before but later on after setting read and write consistency level to QUORUM the problem got resolved.