{"action":"created","comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/45023338","id":45023338,"diff_hunk":"@@ -0,0 +1,165 @@\n+<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->\n+\n+<!-- BEGIN STRIP_FOR_RELEASE -->\n+\n+<img src=\"http://kubernetes.io/img/warning.png\" alt=\"WARNING\"\n+     width=\"25\" height=\"25\">\n+<img src=\"http://kubernetes.io/img/warning.png\" alt=\"WARNING\"\n+     width=\"25\" height=\"25\">\n+<img src=\"http://kubernetes.io/img/warning.png\" alt=\"WARNING\"\n+     width=\"25\" height=\"25\">\n+<img src=\"http://kubernetes.io/img/warning.png\" alt=\"WARNING\"\n+     width=\"25\" height=\"25\">\n+<img src=\"http://kubernetes.io/img/warning.png\" alt=\"WARNING\"\n+     width=\"25\" height=\"25\">\n+\n+<h2>PLEASE NOTE: This document applies to the HEAD of the source tree</h2>\n+\n+If you are using a released version of Kubernetes, you should\n+refer to the docs that go with that version.\n+\n+<strong>\n+The latest release of this document can be found\n+[here](http://releases.k8s.io/release-1.1/docs/proposals/multiple-schedulers.md).\n+\n+Documentation for other releases can be found at\n+[releases.k8s.io](http://releases.k8s.io).\n+</strong>\n+--\n+\n+<!-- END STRIP_FOR_RELEASE -->\n+\n+<!-- END MUNGE: UNVERSIONED_WARNING -->\n+\n+# WIP: Multi-Scheduler in Kubernetes\n+\n+**Author**: Haiyang DING(@HaiyangDING)\n+\n+**Status**: Design & Implementation in progress.\n+\n+## Motivation\n+\n+In current Kubernetes design, there is only one default scheduler in a Kubernetes cluster.\n+However it is common that multiple types of workload, such as traditional batch, DAG batch and streaming, are running in the same cluster and they\n+need to be scheduled in different manner. For example, in ,\n+batch workload and service workload are scheduled by two types of schedulers: the batch workload is\n+scheduled by a scheduler which looks at the current usage of the cluster to improve the resource usage rate\n+and the service workload is scheduled by another one which considers the reserved resources in the\n+cluster and many other constraints since their performance must meet some higher SLOs.\n+[Mesos](http://mesos.apache.org/) has also done a good work to support multiple schedulers by building a\n+two-level scheduling structure. This proposal describes how Kubernetes is going to support multi-scheduler","path":"docs/proposals/multiple-schedulers.md","position":null,"original_position":50,"commit_id":"629f7d2cbbcfc67a0c20c4503b846057698709e1","original_commit_id":"a13e1c035e1283cf4f3f10b30399dd7d09d7e9f1","user":{"login":"HaiyangDING","id":11399486,"avatar_url":"https://avatars.githubusercontent.com/u/11399486?v=3","gravatar_id":"","url":"https://api.github.com/users/HaiyangDING","html_url":"https://github.com/HaiyangDING","followers_url":"https://api.github.com/users/HaiyangDING/followers","following_url":"https://api.github.com/users/HaiyangDING/following{/other_user}","gists_url":"https://api.github.com/users/HaiyangDING/gists{/gist_id}","starred_url":"https://api.github.com/users/HaiyangDING/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HaiyangDING/subscriptions","organizations_url":"https://api.github.com/users/HaiyangDING/orgs","repos_url":"https://api.github.com/users/HaiyangDING/repos","events_url":"https://api.github.com/users/HaiyangDING/events{/privacy}","received_events_url":"https://api.github.com/users/HaiyangDING/received_events","type":"User","site_admin":false},"body":"Reply to this one and the one above.\r\n\r\nI think the way Omega does is not a \"two level scheduling\". I would keep the content for now.","created_at":"2015-11-17T05:20:06Z","updated_at":"2015-11-17T05:20:06Z","html_url":"https://github.com/kubernetes/kubernetes/pull/17197#discussion_r45023338","pull_request_url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/17197","_links":{"self":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/comments/45023338"},"html":{"href":"https://github.com/kubernetes/kubernetes/pull/17197#discussion_r45023338"},"pull_request":{"href":"https://api.github.com/repos/kubernetes/kubernetes/pulls/17197"}}},"pull_request":{"url":"https://api.github.com/repos/kubernetes/kubernetes/pulls/17197","id":50593923,"html_url":"https://github.com/kubernetes/kubernetes/pull/17197","diff_url":"https://github.com/kubernetes/kubernetes/pull/17197.diff","patch_url":"https://github.com/kubernetes/kubernetes/pull/17197.patch","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/17197","number":17197,"state":"open","locked":false,"title":"Create proposal on multiple schedulers","user":{"login":"HaiyangDING","id":11399486,"avatar_url":"https://avatars.githubusercontent.com/u/11399486?v=3","gravatar_id":"","url":"https://api.github.com/users/HaiyangDING","html_url":"https://github.com/HaiyangDING","followers_url":"https://api.github.com/users/HaiyangDING/followers","following_url":"https://api.github.com/users/HaiyangDING/following{/other_user}","gists_url":"https://api.github.com/users/HaiyangDING/gists{/gist_id}","starred_url":"https://api.github.com/users/HaiyangDING/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HaiyangDING/subscriptions","organizations_url":"https://api.github.com/users/HaiyangDING/orgs","repos_url":"https://api.github.com/users/HaiyangDING/repos","events_url":"https://api.github.com/users/HaiyangDING/events{/privacy}","received_events_url":"https://api.github.com/users/HaiyangDING/received_events","type":"User","site_admin":false},"body":"This is a proposal on how to implement multi-scheduler feature in Kubernetes in the first step. The proposal is mostly based on the discussion in #11793.\r\n\r\n@davidopp  @bgrant0607  @brendandburns  @hurf  @timothysc  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