Hao Chen created EAGLE-750:
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Summary: Improve coordinator schedule strategy to reuse alert work
slot
Key: EAGLE-750
URL: https://issues.apache.org/jira/browse/EAGLE-750
Project: Eagle
Issue Type: Bug
Affects Versions: v0.5.0
Reporter: Hao Chen
Assignee: Su Ralph
Fix For: v0.5.0
We catch with some critical problem about alert engine policy schedule
strategy:
For example for an alert topology with 20 alert bolts , and after boarding 4
policies and each assigning 5 slots, then the current alert coordinator will
treat the work slots as used up and be unable to schedule any more new policies.
But in fact some typical eagle deployment will have at least 20+ streams with
lots of different partition requirements, which means we could just define very
few policies under such scheduling strategy and may waste slot resources of
eagle’s deployment infrastructure.
In original design, we should have designed to reused slot queue among
in-conflict monitored stream (stream-partition-sort), then eagle could try to
reuse alert slots if possible to improve resource utilization, and it should
be time to implement it now.
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