[jira] [Created] (STORM-59) Support status messages on Storm UI

["James Xu (JIRA)" <ji...@apache.org>]

James Xu created STORM-59:
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             Summary: Support status messages on Storm UI
                 Key: STORM-59
                 URL: https://issues.apache.org/jira/browse/STORM-59
             Project: Apache Storm (Incubating)
          Issue Type: New Feature
            Reporter: James Xu


https://github.com/nathanmarz/storm/issues/342

Set the status message as a string through the config.

Status message should display by itself if Nimbus is down, otherwise display on the top of the cluster UI

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jasonjckn: One common issue is zookeeper goes down, it'd be nice if the status message reported ZK online/offline.

Also, the most common instant message I get are "when will it be up?" and "if I'm working on the problem" can the status message be dynamically set?

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nathanmarz: We can just update the config file and have the UI reload the config each time it receives a request.


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jasonjckn: In the situation where ZK is offline. I don't want to have to manually set the status message about ZK online/offline. I want to be the consumer of this information. It'd be great, if the error page was server rendered, and we did a quick ZK connect, to see if it exists. The code could be easily added to src/clj/backtype/storm/ui/core.clj

We could still have a status message in the config, which would be read by error page in ui/core.clj.

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nathanmarz: Good idea. This would be in addition to a status message. We can call this "health checks."




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