not a support question
meraghul
Member
I would like to setup cassandra so that writes are acknowledged only after the commitlog is fsynced to the disk, prevent any loss of data.
I setting commitlog_sync: batch.
And for commitlog_sync_batch_window_in_ms: what is the lowest value i can set ?
Is 1ms the lowest, Is 0 ms allowed ?
Thanks.
I would go ahead and try it. A quick look at the code reveals only one use of that value, and for that one case the result of using 0 will be that the while loop running after the current task was added to the queue will never be run (which is what you seem to want). I would say though that in general, batching up writes is a good idea for performance reasons.
