Github user uce commented on a diff in the pull request:
https://github.com/apache/flink/pull/3366#discussion_r102205464
--- 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
+ deferred.resolve(watermarks)
+ deferred.promise
+
+ getLowWatermarks = (watermarks)->
+ lowWatermarks = []
+ for k,v of watermarks
+ minValue = Math.min.apply(null,(watermark.value for watermark in v))
+ lowWatermarks[k] = if minValue <= -9223372036854776000 || v.length
== 0 then 'None' else minValue
--- End diff --
The constant `-9223372036854776000 ` is different than the returned Java
`Long.MIN_VALUE`, because of differences of the internal data representation
for numbers in Java and JavaScript. I think it would be good to have this
constant as an extra variable with a name and comment that describes what it is
(maybe `NO_WATERMARK` or so?).
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