Database Reference
In-Depth Information
Zookeeper nodes : Zookeepers can be designated as the bookkeepers in the Storm
cluster. Once the topology job is submitted and distributed from the Nimbus
nodes, then even if Nimbus dies the topology would continue to execute because
as long as Zookeepers are alive, the workable state is maintained and logged by
them. The main responsibility of this component is to maintain the operational
state of the cluster and restore the operational state if recovery is required from
some failure. It's the coordinator for the Storm cluster.
Supervisor nodes : These are the main processing chambers in the Storm topo-
logy; all the action happens in here. These are daemon processes that listen and
manage the work assigned. These communicates with Nimbus through Zookeeper
and starts and stops workers according to signals from Nimbus.
Search WWH ::




Custom Search