Cassandra - TimedOutException - Wrong prompt? - strange acknowledged_by and acknowledged_by_batchlog value set-up -


i'm trying bit more information timedoutexception.

after inputing data 6 minutes(a lot of insert succeed), get:

caused by: timedoutexception(acknowledged_by:0, acknowledged_by_batchlog:true)

the exception occurs during batched insert operations. i'm using cassandra 1.2.6. can't perceive special cassandra behavior during timeoutexception occur.

i red acknowledged_by , acknowledged_by_batchlog , cannot understand set-up of value in case(0,true)(wrong prompt?). case of atomic_batch_mutate, why 2 value reveal other facts?

javadoc in cassandra code, placed on acknowledged attribute: "if write operation acknowledged replicas not enough satisfy required consistencylevel, number of successful replies given here. in case of atomic_batch_mutate method field set -1 if batch written batchlog , 0 if wasn't."

javadoc in cassandra code, placed on acknowledged_by_batchlog attribute: "in case of atomic_batch_mutate method field tells if batch written batchlog."

it's wrong prompt?(bug?) or? maybe know kind of set-up...


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