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Posted to user@storm.apache.org by Robert Birch <ro...@gmail.com> on 2015/03/09 17:28:51 UTC

StormSubmitter.submitTopology Config are parameters added 

When submitting a Config with a topology are any parameters added to the Config unique and only accessible to that topology?

	StormSubmitter.submitTopology(name, config, topology)

I have a generic topology that has several generic bolts that are to be configured during the prepare.
During the prepare they would pull this config parameter as a key to get  detailed assets/configuration info that is stored in mongo.

I would like to add a parameter to the Config prior to submission 

	topology.assets=someValue

someValue would be unique in with each topology submission, but the key, topology.assets,  would be same with each topology submission.

- Robert D. Birch

Re: StormSubmitter.submitTopology Config are parameters added

Posted by Parth Brahmbhatt <pb...@hortonworks.com>.
The config that you supply during topology submission is attached to that topology only (1 to 1 mapping). You can add custom param to your config prior to submission and your topology's bolts and spouts will get the config that you submitted as a parameter as part of their prepare method call.

Thanks
Parth

From: Robert Birch <ro...@gmail.com>>
Reply-To: "user@storm.apache.org<ma...@storm.apache.org>" <us...@storm.apache.org>>
Date: Monday, March 9, 2015 at 8:28 AM
To: "user@storm.apache.org<ma...@storm.apache.org>" <us...@storm.apache.org>>
Subject: StormSubmitter.submitTopology Config are parameters added

When submitting a Config with a topology are any parameters added to the Config unique and only accessible to that topology?

StormSubmitter.submitTopology(name, config, topology)

I have a generic topology that has several generic bolts that are to be configured during the prepare.
During the prepare they would pull this config parameter as a key to get  detailed assets/configuration info that is stored in mongo.

I would like to add a parameter to the Config prior to submission

topology.assets=someValue

someValue would be unique in with each topology submission, but the key, topology.assets,  would be same with each topology submission.

- Robert D. Birch