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https://issues.apache.org/jira/browse/FLINK-3427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15880560#comment-15880560
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ASF GitHub Bot commented on FLINK-3427:
---------------------------------------
Github user nellboy commented on a diff in the pull request:
https://github.com/apache/flink/pull/3366#discussion_r102726588
--- Diff:
flink-runtime-web/web-dashboard/app/scripts/modules/jobs/jobs.ctrl.coffee ---
@@ -81,6 +78,51 @@ angular.module('flinkApp')
JobsService.stopJob($stateParams.jobid).then (data) ->
{}
+ loadJob = ()->
+ JobsService.loadJob($stateParams.jobid).then (data) ->
+ $scope.job = data
+ $scope.vertices = data.vertices
+ $scope.plan = data.plan
+ MetricsService.setupMetrics($stateParams.jobid, data.vertices)
+
+ getWatermarks = (nodes)->
+ deferred = $q.defer()
+ watermarks = {}
+ jid = $scope.job.jid
+ angular.forEach nodes, (node, index) =>
+ metricIds = []
+ for num in [0..node.parallelism - 1]
+ metricIds.push(num + ".currentLowWatermark")
+ MetricsService.getMetrics(jid, node.id, metricIds).then (data) ->
+ values = []
+ for key, value of data.values
+ values.push(id: key.replace('.currentLowWatermark', ''), value:
value)
+ watermarks[node.id] = values
+ if index >= $scope.plan.nodes.length - 1
--- End diff --
I have not fixed this, will try to see if I can find a more elegant
solution.
> Add watermark monitoring to JobManager web frontend
> ---------------------------------------------------
>
> Key: FLINK-3427
> URL: https://issues.apache.org/jira/browse/FLINK-3427
> Project: Flink
> Issue Type: Improvement
> Components: Streaming, Webfrontend
> Reporter: Robert Metzger
>
> Currently, its quite hard to figure out issues with the watermarks.
> I think we can improve the situation by reporting the following information
> through the metrics system:
> - Report the current low watermark for each operator (this way, you can see
> if one operator is preventing the watermarks to rise)
> - Report the number of events arrived after the low watermark (users can see
> how accurate the watermarks are)
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