Anton Alfred created STORM-3776:
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Summary: Ability to change the configuration of a topology without
restarting
Key: STORM-3776
URL: https://issues.apache.org/jira/browse/STORM-3776
Project: Apache Storm
Issue Type: New Feature
Components: storm-core
Reporter: Anton Alfred
Have gone through this issue of Autoscale
https://issues.apache.org/jira/browse/STORM-594.
We are trying a simpler approach for scaling in and out.
We create a topic in Kafka and would want to start processing the messages in
the topology by having one worker.
As the lag in topic in Kafka increases, we want to be able to intimate Storm
nimbus to change the topology workers and the number of executors in the bolts.
Once this is done the topology should detect this change and scale out without
needing a restart. Once we monitor the Kafka lag coming down, we want to send
the scale in signal to the Storm nimbus to change back.
Currently due to no support for dynamic changes, we are forced to restart the
topology when configuration changes...
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