auto.create.topics.enable=true
delete.topic.enable=true
num.replica.fetchers=2
socket.request.max.bytes=104857600
unclean.leader.election.enable=true
default.replication.factor=2
min.insync.replicas=2
num.io.threads=16
num.network.threads=10
num.partitions=1
log.roll.ms=900000 
log.retention.ms=1800000