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https://issues.apache.org/jira/browse/STORM-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14960710#comment-14960710
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ASF GitHub Bot commented on STORM-1057:
---------------------------------------
Github user revans2 commented on a diff in the pull request:
https://github.com/apache/storm/pull/753#discussion_r42243012
--- Diff: storm-core/src/clj/backtype/storm/ui/core.clj ---
@@ -626,7 +638,8 @@
(let [^CommonAggregateStats cas (.get_common_stats stats)]
{"stream" stream-id
"emitted" (nil-to-zero (.get_emitted cas))
- "transferred" (nil-to-zero (.get_transferred cas))}))
+ "transferred" (nil-to-zero (.get_transferred cas))
+ "throughput" (float-str (.get_throughput cas))}))
--- End diff --
I think we need nil-to-zero here as well, unless float-str will do that
already
> Add throughput metric to spout/bolt and display them on web ui
> --------------------------------------------------------------
>
> Key: STORM-1057
> URL: https://issues.apache.org/jira/browse/STORM-1057
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-core
> Reporter: Li Wang
> Assignee: Li Wang
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Throughput is a fundamental metric to reasoning about the performance
> bottleneck of a topology. Displaying the throughputs of components and tasks
> on the web ui could greatly facilitate the user identifying the performance
> bottleneck and checking whether the the workload among components and tasks
> are balanced.
> What to do:
> 1. Measure the throughput of each spout/bolt.
> 2. Display the throughput metrics on web UI.
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