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https://issues.apache.org/jira/browse/METRON-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159415#comment-16159415
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ASF GitHub Bot commented on METRON-1167:
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Github user nickwallen commented on the issue:

    https://github.com/apache/metron/pull/740
  
    Yep, you are right.  How could I doubt you?  For your complex type example 
a %define would load the value as a string, and the -z would load it as a map.  
So the behavior is different. But the reason it gets loaded as a map is because 
it is a map in JSON, not anything to do with Stellar itself.  
    
    So I am a little corn-fused about how to match the same functionality with 
%define.  I'd have to treat it as JSON?  The other thought I had would be to 
treat it as a Stellar expression and just execute it, but that would actually 
be different than `-z`.


> Define Session Specific Global Configuration Values in the REPL
> ---------------------------------------------------------------
>
>                 Key: METRON-1167
>                 URL: https://issues.apache.org/jira/browse/METRON-1167
>             Project: Metron
>          Issue Type: Improvement
>    Affects Versions: 0.4.0
>            Reporter: Nick Allen
>            Assignee: Nick Allen
>
> Many Stellar functions accept configuration values from the Global 
> configuration.  When using the REPL you can load the global configuration 
> values by launching the REPL with the -z option, which loads the global 
> configuration stored in Zookeeper.
> The only way to modify the global configuration within the REPL currently is 
> to do the following steps.
> 1. Retrieve the global configuration with conf := CONFIG_GET("global")
> 2. Alter that global configuration by modifying the JSON contained in the 
> `conf` variable.
> 3. Push the new global configuration using CONFIG_PUT("global", conf)
> 4. Close and then reopen the REPL.  Without restarting the REPL the new 
> global configuration is not loaded.
> I want a way to do this directly in the REPL, without restarting it, and also 
> in a way that does not modify the persisted global configuration in 
> Zookeeper.  I may be monkeying with something the REPL, but I don't want to 
> break one of my live Metron topologies.



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