{"action":"created","issue":{"url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/77","labels_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/77/labels{/name}","comments_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/77/comments","events_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/77/events","html_url":"https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/77","id":111383095,"number":77,"title":"processing_rate is a multiplier and not absolute number","user":{"login":"MeLight","id":704484,"avatar_url":"https://avatars.githubusercontent.com/u/704484?v=3","gravatar_id":"","url":"https://api.github.com/users/MeLight","html_url":"https://github.com/MeLight","followers_url":"https://api.github.com/users/MeLight/followers","following_url":"https://api.github.com/users/MeLight/following{/other_user}","gists_url":"https://api.github.com/users/MeLight/gists{/gist_id}","starred_url":"https://api.github.com/users/MeLight/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MeLight/subscriptions","organizations_url":"https://api.github.com/users/MeLight/orgs","repos_url":"https://api.github.com/users/MeLight/repos","events_url":"https://api.github.com/users/MeLight/events{/privacy}","received_events_url":"https://api.github.com/users/MeLight/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-10-14T11:59:50Z","updated_at":"2015-10-16T21:37:36Z","closed_at":null,"body":"When I pass `\"processing_rate\":1` as part of `mapper_params` and examine the logs of `/mapreduce/worker_callback` I see that each worker callback processes **8** entities each time. If I set  `\"processing_rate\":2` each callback will process **16** entities. On another project I've worked on, the numbers were **15** and **30** (for `processing_rate` of 1 and 2). So I conclude that `processing_rate` param is a multiplier.\r\n* Where can I set the actual value?\r\n* What makes it change from project to project?\r\n"},"comment":{"url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/comments/148842540","html_url":"https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/77#issuecomment-148842540","issue_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/77","id":148842540,"user":{"login":"MeLight","id":704484,"avatar_url":"https://avatars.githubusercontent.com/u/704484?v=3","gravatar_id":"","url":"https://api.github.com/users/MeLight","html_url":"https://github.com/MeLight","followers_url":"https://api.github.com/users/MeLight/followers","following_url":"https://api.github.com/users/MeLight/following{/other_user}","gists_url":"https://api.github.com/users/MeLight/gists{/gist_id}","starred_url":"https://api.github.com/users/MeLight/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MeLight/subscriptions","organizations_url":"https://api.github.com/users/MeLight/orgs","repos_url":"https://api.github.com/users/MeLight/repos","events_url":"https://api.github.com/users/MeLight/events{/privacy}","received_events_url":"https://api.github.com/users/MeLight/received_events","type":"User","site_admin":false},"created_at":"2015-10-16T21:37:36Z","updated_at":"2015-10-16T21:37:36Z","body":"So there's no way of knowing how many entities each shard will process?"}}