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https://issues.apache.org/jira/browse/GEARPUMP-83?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15305839#comment-15305839
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Manu Zhang commented on GEARPUMP-83:
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Worker's job is to manage resources. Worker being down doesn't necessarily mean
there is no resource to run an application. The application should continue to
run when worker's down but the node is fine. I also check Storm's behavior.
Storm's application are running fine and I'm able to visit the details page
when I kill the supervisor. Hence, I think we'd better make applications's
detail page available on worker failure.
> After killing all worker instances, application status should not be
> described as active
> ----------------------------------------------------------------------------------------
>
> Key: GEARPUMP-83
> URL: https://issues.apache.org/jira/browse/GEARPUMP-83
> Project: Apache Gearpump
> Issue Type: Bug
> Components: Dashboard
> Affects Versions: 0.8.0
> Reporter: Kam Kasravi
> Assignee: Manu Zhang
> Priority: Minor
> Fix For: 0.8.1
>
>
> Step to reproduce:
> Start cluster with one worker
> Start a word count
> Kill the worker
> Expect /api/v1.0/master/applist actually returns app status as active, but
> application's detail page is not available. I think as there is no resource
> to run the application, the application is in some abnormal status. In order
> not to mislead user, I think we should invent a new status, might be
> recovering or something.
> Example output:
> {code}
> {"appMasters":[{"status":"active","appId":1,"appName":"dag","appMasterPath":"akka.tcp://app1-executor-1@127.0.0.1:46761/user/daemon/appdaemon1/$c","workerPath":"akka.tcp://48a47aa6-81c0-493c-9948-9d7d4c946db6@127.0.0.1:59201/user/Worker48a47aa6-81c0-493c-9948-9d7d4c946db6","submissionTime":"1451894551477","startTime":"1451894553568","user":"qxu"},{"status":"active","appId":2,"appName":"wordCount","appMasterPath":"akka.tcp://app2-executor-1@127.0.0.1:49261/user/daemon/appdaemon2/$c","workerPath":"akka.tcp://48a47aa6-81c0-493c-9948-9d7d4c946db6@127.0.0.1:59201/user/Worker48a47aa6-81c0-493c-9948-9d7d4c946db6","submissionTime":"1451898038991","startTime":"1451898040265","user":"qxu"}]}
> {code}
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