Submitting Multiple Deployments of the Same Script

The system does not permit you to submit a single script deployment for processing multiple times simultaneously. If a deployment is already submitted and not finished, you can't submit it again. You have to wait for the unfinished instance to finish.

To submit multiple instances of a script at the same time, create multiple deployments and submit each one as needed.

This approach has several benefits. For instance, you can process multiple script instances in parallel. Additionally, if you need a map/reduce script to be processed multiple times in the same general time frame, you can submit both instances at the same time without having to worry about the second submission failing with an error. The alternative is to monitor the first instance and submit the second one after it finishes.

Note that if a deployment has already been submitted but not yet finished, and you open the deployment record for editing in the UI, the deployment record’s Save and Execute option isn't available. If you try to submit it programmatically, you'll get a MAP_REDUCE_ALREADY_RUNNING error.

For help creating or submitting a deployment, see the following topics:

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