I am using Druid-0.9.1.1 and loading data from Kafka at real time.
The topic in Kafka is devilfish_ntes_log, and the topic information is:
Topic:devilfish_ntes_log PartitionCount:2 ReplicationFactor:1 Configs:
Topic: devilfish_ntes_log Partition: 0 Leader: 2 Replicas: 2 Isr: 2
Topic: devilfish_ntes_log Partition: 1 Leader: 0 Replicas: 0 Isr: 0
I set the partition number to 2, and the replication number to 1.
While, the question is when I start the index service, only one node start one process to read data from the topic. Is that right?
I mean if the topic has 2 partitions, then Druid should start 2 process to read data to improve performance.
And how should I set the partition number and replication number? If I want Druid to start more than one process to read data at the same time?