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https://issues.apache.org/jira/browse/S4-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13412657#comment-13412657
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Matthieu Morel commented on S4-65:
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Very nice contribution! Furthermore perfectly integrated with the existing
codebase patterns.
bq. Now when showing the applications connect to a stream, I use the format
like this: cluster1(myAPP).
I think this is fine for now
bq. the Adapter doesn't have information in /s4/cluster/clusterX/app/, so it
seems difficult to get the information(App names) of such Adapter publishers of
streams.
I think you are referring to the adapter that you start directly as in the
walkthrough. Which can be viewed as a facility for testing. In a real
deployment, the adapter app would appear in Zookeeper as any other S4 app.
Comments/suggestions:
* Total nodes is the current number of active nodes right?
* I understand the format of the "Running nodes" column, but it could be useful
to have a small description of the format. Not sure where to show that though.
In the column label?
* It would be worth having another table focusing on Apps. In particular,
showing Apps metadata. So far there is only the URI, but it would be useful to
see it here. Columns could be "name, cluster, URI, (other metadata columns when
available)"
What do you think?
Thanks!
> Create s4 status command
> ------------------------
>
> Key: S4-65
> URL: https://issues.apache.org/jira/browse/S4-65
> Project: Apache S4
> Issue Type: Sub-task
> Affects Versions: 0.5
> Reporter: Matthieu Morel
> Assignee: Aimee Cheng
> Fix For: 0.5
>
> Attachments: 0001-add-status-command.patch,
> 0001-add-status-command.patch
>
>
> We should have an "s4 status" command that provides nicely formatted
> information about the state of S4 application coordinated through a given
> Zookeeper ensemble.
> In particular:
> - which applications are deployed
> - on which S4 nodes these applications are deployed
> - how many S4 nodes are running, how many S4 nodes are in standby
> - which streams are published, which applications are connected
> The implementation would probably add a new class in the s4-tools project.
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