MapReduce not stopping MR controllers when completed - frontend charges increasing in bill

[Camilo Silva]

So I've been working on Map Reduce Google library for quite a while on some Python App Engine projects. And to this day, I cannot comprehend why there are "mrcontrollers" alive doing callbacks everytime right after all processing is done (i.e., all shards terminated successfully). I always have to go back and purge the taskqueue so that unnecessary frontend calls are stopped -- this is an issue because the billing is affected due to this. 

Any feedback is welcomed. 

Thanks for your help.

[Tom Kaitchuck]

I think this may be your problem:

https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/69

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[Camilo Silva]

Indeed, that might be the issue.

Thanks for sharing Tom!

-CAS