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https://issues.apache.org/jira/browse/QUARKS-131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15258259#comment-15258259
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ASF GitHub Bot commented on QUARKS-131:
---------------------------------------

Github user dlaboss commented on a diff in the pull request:

    https://github.com/apache/incubator-quarks/pull/86#discussion_r61105658
  
    --- Diff: api/topology/src/main/java/quarks/topology/TStream.java ---
    @@ -443,7 +443,7 @@ else if (WARNING.equals(lr.getLevel()))
         Set<String> getTags(); 
         
         /**
    -     * Add an alias for the stream.
    +     * Set an alias for the stream.
          * <p>
          * The alias must be unique within the topology.
    --- End diff --
    
    https://issues.apache.org/jira/browse/QUARKS-154 is for "type" naming 
conventions doc/improvements.


> need easy way to get PeriodicMXBean associated with a poll() invocation
> -----------------------------------------------------------------------
>
>                 Key: QUARKS-131
>                 URL: https://issues.apache.org/jira/browse/QUARKS-131
>             Project: Quarks
>          Issue Type: Improvement
>            Reporter: Dale LaBossiere
>            Assignee: Dale LaBossiere
>
> I think we're missing some API is missing to make this all usable.
> A Topology/TStream domain user needs an easy way to get the PeriodicMXBean 
> for a particular Topology.poll() invocation. 
> The PeriodicSource oplet implements PeriodicMXBean which allows changing the 
> period.  
> The only demonstrated use is by 
> DirectJobTest.jobPeriodicSourceCancellation(), which iterates over the 
> Topology's underlying graph for instanceof PeriodicSource oplet (it's the 
> only ProcessSource oplet in the graph for this test).  
> That's certainly not easy / convenient / nor in the "TStream" domain the user 
> is mostly operating in.
> [~djd] [~vdogaru] what schemes for addressing this have already been 
> considered / decided?  Some sort of "control bean registry service" where a 
> user gets to supply a name (e.g., to poll()) and the runtime registers the 
> bean (e.g., PeriodicMXBean) under that name?  If there's not a concrete plan 
> lets work on that here.



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