Robert Joseph Evans created STORM-907:
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Summary: More Intellegent Backpressure
Key: STORM-907
URL: https://issues.apache.org/jira/browse/STORM-907
Project: Apache Storm
Issue Type: Improvement
Reporter: Robert Joseph Evans
As a follow on to STORM-886 we should look at ways to automatically adjust the
back-pressure to meet SLAs.
Using an SLA latency goal for a topology from something like STORM-815 or
STORM-594 we should be able to come up with a time budget for each stage in a
DAG. We will have to play games if there are loops in a topology, but it
should be doable. We could then adjust the budget based off of actual latency
numbers measured while running. Then throttle the upstream bolts/spouts so
that the predicted time spent in the downstream queue will be under the budget
for that stage.
I see this as a complement to the bang-bang controller from STORM-886
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