James Xu created STORM-141:
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Summary: Provide support for custom stats in Storm UI
Key: STORM-141
URL: https://issues.apache.org/jira/browse/STORM-141
Project: Apache Storm (Incubating)
Issue Type: New Feature
Reporter: James Xu
Priority: Minor
https://github.com/nathanmarz/storm/issues/27
Something along the lines of Hadoop counters
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gsilk: Would this be implemented as an implicit stream? It would be great to
have global and per-task aggregations in addition to having per-bolt counters.
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nathanmarz: gsilk: Well, besides the aggregation mechanism we need to figure
out how the stats are sent back to nimbus, stored, etc. Not sure the current
approach of putting the stats in ZK is a good one. Using implicit streams and
an aggregation bolt to sum things together, and then having the aggregation
bolt connect to nimbus and send updates might be a better design.
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ehudl: how about using emit to a specific stream (not default) as a counter, do
you think this is a good approach ?
could this approach cause a memory leak? if no one is listening to this stream
or in case you use a large amount of streams?
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