Bipin Prasad created STORM-4013:
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Summary: Add Round Robin Scheduler with node limit
Key: STORM-4013
URL: https://issues.apache.org/jira/browse/STORM-4013
Project: Apache Storm
Issue Type: Task
Components: storm-server
Reporter: Bipin Prasad
Assignee: Bipin Prasad
Resource aware schedulers used in Storm optimize on the use of compute, memory
and network usage by concentrating executors on as few nodes as possible.
In some instances, this may not be desirable. In cases where the cluster is not
shared on when the user explicitly wants the load to be evenly distributed
amongst supervisors that have been pre-allocated (for example in a kubernetes
environment (AWS EKS or GKE), storm should provide a scheduler to distribute
the load evenly, with an optional limit on the number of supervisors that the
load will be distributed on - default value will be to use all supervisors.
Since a worker runs only one topology, using all workers for a topology will
essentially prevent any other topology from running in that cluster. Proper
configuration is therefore required when using Round Robin strategy.
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