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https://issues.apache.org/jira/browse/EAGLE-620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15574800#comment-15574800
 ] 

ASF GitHub Bot commented on EAGLE-620:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/incubator-eagle/pull/510


> AlertEngine: SpoutWrapper are sending duplicated message.
> ---------------------------------------------------------
>
>                 Key: EAGLE-620
>                 URL: https://issues.apache.org/jira/browse/EAGLE-620
>             Project: Eagle
>          Issue Type: Bug
>    Affects Versions: v0.5.0
>            Reporter: Su Ralph
>            Assignee: Su Ralph
>            Priority: Blocker
>             Fix For: v0.5.0
>
>
> An event of stream id "ncAlertOutputStream" will be send three times given 
> below spec:
> process.network.alerts: [
> {
> topicName: "network_aggregate_alert_output_datasource",
> streamId: "ncAlertOutputStream",
> groupingStrategies: [
> {
> partition: {
> streamId: "ncAlertOutputStream",
> type: "GROUPBY",
> columns: [
> "entity"
> ]
> },
> numTotalParticipatingRouterBolts: 4,
> startSequence: 0,
> totalTargetBoltIds: [
> "streamRouterBolt0",
> "streamRouterBolt1",
> "streamRouterBolt2",
> "streamRouterBolt3"
> ]
> }
> ]
> },
> {
> topicName: "network_aggregate_alert_output_datasource",
> streamId: "sherlockAlertOutputStream",
> groupingStrategies: [
> {
> partition: {
> streamId: "sherlockAlertOutputStream",
> type: "GROUPBY",
> columns: [
> "entity"
> ]
> },
> numTotalParticipatingRouterBolts: 4,
> startSequence: 0,
> totalTargetBoltIds: [
> "streamRouterBolt0",
> "streamRouterBolt1",
> "streamRouterBolt2",
> "streamRouterBolt3"
> ]
> }
> ]
> },
> {
> topicName: "network_aggregate_alert_output_datasource",
> streamId: "correlatedAlertStream",
> groupingStrategies: [
> {
> partition: {
> streamId: "correlatedAlertStream",
> type: "GROUPBY",
> columns: [
> "linkedSwitch"
> ]
> },
> numTotalParticipatingRouterBolts: 4,
> startSequence: 0,
> totalTargetBoltIds: [
> "streamRouterBolt0",
> "streamRouterBolt1",
> "streamRouterBolt2",
> "streamRouterBolt3"
> ]
> }
> ]
> }
> ],
> The root cause is in SpoutOutputCollectorWrapper.emit() the streamId of group 
> strategy is not compared with the given stream event.



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