dgrove-oss commented on issue #4526: only 8 concurrent containers running at a time URL: https://github.com/apache/incubator-openwhisk/issues/4526#issuecomment-506757799 The default deployment configuration sets the invoker_user_memory (the amount of memory available to run user actions) to 2GB (https://github.com/apache/incubator-openwhisk/blob/master/ansible/group_vars/all#L192). The default memory for a node action is 256MB. So that's where the limit of 8 concurrent containers you are seeing is coming from (2048/256 = 8). If you change invoker_user_memory when you deploy your OpenWhisk instance, you can configure it to enable more concurrent actions.
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