{"action":"created","comment":{"url":"https://api.github.com/repos/openshift/openshift-docs/pulls/comments/63633483","id":63633483,"diff_hunk":"@@ -114,12 +114,27 @@ this during or after installation.\n \n [[sizing-recommendations]]\n === Sizing Recommendations\n+The following apply to production environments. Test or sample environments will\n+function with the minimum requirements.\n \n-In general, an {product-title} cluster should have 1 CPU core and 2.5 GB of\n-memory, on top of the defaults in the table above, for each 1000 pods.\n-Therefore, the recommended size of a cluster of 2000 pods would be 20 CPU cores\n-and 50 GB of RAM, as well as the minimum requirements for a master host of 2 CPU\n-cores and 8 GB of RAM.\n+*Master Hosts*\n+\n+In a highly-available {product-title} cluster with external etcd, a master host\n+should have 1 CPU core and 2.5 GB of memory, on top of the defaults in the table\n+above, for each 1000 pods. Therefore, the recommended size of master host in an\n+{product-title} cluster of 2000 pods would be 20 CPU cores and 50 GB of RAM, as\n+well as the minimum requirements for a master host of 2 CPU cores and 8 GB of\n+RAM.\n+\n+*Node Hosts*\n+\n+The size of a node host depends on the size of the workload that will be run on\n+the host. As an {product-title} cluster administrator, you will need to\n+calculate the expected workload, making sure to leave some room for reserve\n+resources, and use this to determine the size of the node host.\n+\n+In general, add 30% to the maximum expected workload. This will account for 10%","path":"install_config/install/prerequisites.adoc","position":28,"original_position":28,"commit_id":"58a6a3f37fbc380925501e939c2afe11c4c4a98f","original_commit_id":"58a6a3f37fbc380925501e939c2afe11c4c4a98f","user":{"login":"etsauer","id":4500758,"avatar_url":"https://avatars.githubusercontent.com/u/4500758?v=3","gravatar_id":"","url":"https://api.github.com/users/etsauer","html_url":"https://github.com/etsauer","followers_url":"https://api.github.com/users/etsauer/followers","following_url":"https://api.github.com/users/etsauer/following{/other_user}","gists_url":"https://api.github.com/users/etsauer/gists{/gist_id}","starred_url":"https://api.github.com/users/etsauer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/etsauer/subscriptions","organizations_url":"https://api.github.com/users/etsauer/orgs","repos_url":"https://api.github.com/users/etsauer/repos","events_url":"https://api.github.com/users/etsauer/events{/privacy}","received_events_url":"https://api.github.com/users/etsauer/received_events","type":"User","site_admin":false},"body":"The suggestion to add 20% for node failure is for planning capacity for an entire cluster, not for individual nodes. I think the better thing to focus on is that nodes are simply container hosts, and their size should be dictated by the profiles of the workloads expected to run on them. Adding 10% for overhead is still valid though.","created_at":"2016-05-18T01:34:54Z","updated_at":"2016-05-18T01:34:54Z","html_url":"https://github.com/openshift/openshift-docs/pull/2108#discussion_r63633483","pull_request_url":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108","_links":{"self":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/comments/63633483"},"html":{"href":"https://github.com/openshift/openshift-docs/pull/2108#discussion_r63633483"},"pull_request":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108"}}},"pull_request":{"url":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108","id":70289983,"html_url":"https://github.com/openshift/openshift-docs/pull/2108","diff_url":"https://github.com/openshift/openshift-docs/pull/2108.diff","patch_url":"https://github.com/openshift/openshift-docs/pull/2108.patch","issue_url":"https://api.github.com/repos/openshift/openshift-docs/issues/2108","number":2108,"state":"open","locked":false,"title":"Issue 2095: Fixed System Requirements phrasing and added node host info","user":{"login":"bfallonf","id":5474938,"avatar_url":"https://avatars.githubusercontent.com/u/5474938?v=3","gravatar_id":"","url":"https://api.github.com/users/bfallonf","html_url":"https://github.com/bfallonf","followers_url":"https://api.github.com/users/bfallonf/followers","following_url":"https://api.github.com/users/bfallonf/following{/other_user}","gists_url":"https://api.github.com/users/bfallonf/gists{/gist_id}","starred_url":"https://api.github.com/users/bfallonf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bfallonf/subscriptions","organizations_url":"https://api.github.com/users/bfallonf/orgs","repos_url":"https://api.github.com/users/bfallonf/repos","events_url":"https://api.github.com/users/bfallonf/events{/privacy}","received_events_url":"https://api.github.com/users/bfallonf/received_events","type":"User","site_admin":false},"body":"@etsauer @timothysc As per #2095 \r\n\r\nI'll admit, the part about node hosts is just kinda...blah. I don't think it's saying anything the admin would not expect to do for themselves. Is there anything else that can be added here?\r\n\r\nI also changed the wording of the master host section.\r\n\r\nPlease let me know if this needs adjusting.","created_at":"2016-05-17T02:08:19Z","updated_at":"2016-05-18T01:34:54Z","closed_at":null,"merged_at":null,"merge_commit_sha":"34dcd37875750e518c8dd6f6246ab9f981feefb6","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108/commits","review_comments_url":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108/comments","review_comment_url":"https://api.github.com/repos/openshift/openshift-docs/pulls/comments{/number}","comments_url":"https://api.github.com/repos/openshift/openshift-docs/issues/2108/comments","statuses_url":"https://api.github.com/repos/openshift/openshift-docs/statuses/58a6a3f37fbc380925501e939c2afe11c4c4a98f","head":{"label":"bfallonf:issue_2095","ref":"issue_2095","sha":"58a6a3f37fbc380925501e939c2afe11c4c4a98f","user":{"login":"bfallonf","id":5474938,"avatar_url":"https://avatars.githubusercontent.com/u/5474938?v=3","gravatar_id":"","url":"https://api.github.com/users/bfallonf","html_url":"https://github.com/bfallonf","followers_url":"https://api.github.com/users/bfallonf/followers","following_url":"https://api.github.com/users/bfallonf/following{/other_user}","gists_url":"https://api.github.com/users/bfallonf/gists{/gist_id}","starred_url":"https://api.github.com/users/bfallonf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bfallonf/subscriptions","organizations_url":"https://api.github.com/users/bfallonf/orgs","repos_url":"https://api.github.com/users/bfallonf/repos","events_url":"https://api.github.com/users/bfallonf/events{/privacy}","received_events_url":"https://api.github.com/users/bfallonf/received_events","type":"User","site_admin":false},"repo":{"id":30393503,"name":"openshift-docs","full_name":"bfallonf/openshift-docs","owner":{"login":"bfallonf","id":5474938,"avatar_url":"https://avatars.githubusercontent.com/u/5474938?v=3","gravatar_id":"","url":"https://api.github.com/users/bfallonf","html_url":"https://github.com/bfallonf","followers_url":"https://api.github.com/users/bfallonf/followers","following_url":"https://api.github.com/users/bfallonf/following{/other_user}","gists_url":"https://api.github.com/users/bfallonf/gists{/gist_id}","starred_url":"https://api.github.com/users/bfallonf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bfallonf/subscriptions","organizations_url":"https://api.github.com/users/bfallonf/orgs","repos_url":"https://api.github.com/users/bfallonf/repos","events_url":"https://api.github.com/users/bfallonf/events{/privacy}","received_events_url":"https://api.github.com/users/bfallonf/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/bfallonf/openshift-docs","description":"OpenShift Documentation","fork":true,"url":"https://api.github.com/repos/bfallonf/openshift-docs","forks_url":"https://api.github.com/repos/bfallonf/openshift-docs/forks","keys_url":"https://api.github.com/repos/bfallonf/openshift-docs/keys{/key_id}","collaborators_url":"https://api.github.com/repos/bfallonf/openshift-docs/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/bfallonf/openshift-docs/teams","hooks_url":"https://api.github.com/repos/bfallonf/openshift-docs/hooks","issue_events_url":"https://api.github.com/repos/bfallonf/openshift-docs/issues/events{/number}","events_url":"https://api.github.com/repos/bfallonf/openshift-docs/events","assignees_url":"https://api.github.com/repos/bfallonf/openshift-docs/assignees{/user}","branches_url":"https://api.github.com/repos/bfallonf/openshift-docs/branches{/branch}","tags_url":"https://api.github.com/repos/bfallonf/openshift-docs/tags","blobs_url":"https://api.github.com/repos/bfallonf/openshift-docs/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/bfallonf/openshift-docs/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/bfallonf/openshift-docs/git/refs{/sha}","trees_url":"https://api.github.com/repos/bfallonf/openshift-docs/git/trees{/sha}","statuses_url":"https://api.github.com/repos/bfallonf/openshift-docs/statuses/{sha}","languages_url":"https://api.github.com/repos/bfallonf/openshift-docs/languages","stargazers_url":"https://api.github.com/repos/bfallonf/openshift-docs/stargazers","contributors_url":"https://api.github.com/repos/bfallonf/openshift-docs/contributors","subscribers_url":"https://api.github.com/repos/bfallonf/openshift-docs/subscribers","subscription_url":"https://api.github.com/repos/bfallonf/openshift-docs/subscription","commits_url":"https://api.github.com/repos/bfallonf/openshift-docs/commits{/sha}","git_commits_url":"https://api.github.com/repos/bfallonf/openshift-docs/git/commits{/sha}","comments_url":"https://api.github.com/repos/bfallonf/openshift-docs/comments{/number}","issue_comment_url":"https://api.github.com/repos/bfallonf/openshift-docs/issues/comments{/number}","contents_url":"https://api.github.com/repos/bfallonf/openshift-docs/contents/{+path}","compare_url":"https://api.github.com/repos/bfallonf/openshift-docs/compare/{base}...{head}","merges_url":"https://api.github.com/repos/bfallonf/openshift-docs/merges","archive_url":"https://api.github.com/repos/bfallonf/openshift-docs/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/bfallonf/openshift-docs/downloads","issues_url":"https://api.github.com/repos/bfallonf/openshift-docs/issues{/number}","pulls_url":"https://api.github.com/repos/bfallonf/openshift-docs/pulls{/number}","milestones_url":"https://api.github.com/repos/bfallonf/openshift-docs/milestones{/number}","notifications_url":"https://api.github.com/repos/bfallonf/openshift-docs/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/bfallonf/openshift-docs/labels{/name}","releases_url":"https://api.github.com/repos/bfallonf/openshift-docs/releases{/id}","deployments_url":"https://api.github.com/repos/bfallonf/openshift-docs/deployments","created_at":"2015-02-06T03:37:52Z","updated_at":"2016-04-12T19:44:07Z","pushed_at":"2016-05-18T01:19:37Z","git_url":"git://github.com/bfallonf/openshift-docs.git","ssh_url":"git@github.com:bfallonf/openshift-docs.git","clone_url":"https://github.com/bfallonf/openshift-docs.git","svn_url":"https://github.com/bfallonf/openshift-docs","homepage":null,"size":11126,"stargazers_count":3,"watchers_count":3,"language":"CSS","has_issues":false,"has_downloads":true,"has_wiki":true,"has_pages":false,"forks_count":0,"mirror_url":null,"open_issues_count":1,"forks":0,"open_issues":1,"watchers":3,"default_branch":"master"}},"base":{"label":"openshift:master","ref":"master","sha":"1887ab9a106269f9a26c912ac25741bb36cd40b6","user":{"login":"openshift","id":792337,"avatar_url":"https://avatars.githubusercontent.com/u/792337?v=3","gravatar_id":"","url":"https://api.github.com/users/openshift","html_url":"https://github.com/openshift","followers_url":"https://api.github.com/users/openshift/followers","following_url":"https://api.github.com/users/openshift/following{/other_user}","gists_url":"https://api.github.com/users/openshift/gists{/gist_id}","starred_url":"https://api.github.com/users/openshift/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/openshift/subscriptions","organizations_url":"https://api.github.com/users/openshift/orgs","repos_url":"https://api.github.com/users/openshift/repos","events_url":"https://api.github.com/users/openshift/events{/privacy}","received_events_url":"https://api.github.com/users/openshift/received_events","type":"Organization","site_admin":false},"repo":{"id":21740844,"name":"openshift-docs","full_name":"openshift/openshift-docs","owner":{"login":"openshift","id":792337,"avatar_url":"https://avatars.githubusercontent.com/u/792337?v=3","gravatar_id":"","url":"https://api.github.com/users/openshift","html_url":"https://github.com/openshift","followers_url":"https://api.github.com/users/openshift/followers","following_url":"https://api.github.com/users/openshift/following{/other_user}","gists_url":"https://api.github.com/users/openshift/gists{/gist_id}","starred_url":"https://api.github.com/users/openshift/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/openshift/subscriptions","organizations_url":"https://api.github.com/users/openshift/orgs","repos_url":"https://api.github.com/users/openshift/repos","events_url":"https://api.github.com/users/openshift/events{/privacy}","received_events_url":"https://api.github.com/users/openshift/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/openshift/openshift-docs","description":"OpenShift Documentation","fork":false,"url":"https://api.github.com/repos/openshift/openshift-docs","forks_url":"https://api.github.com/repos/openshift/openshift-docs/forks","keys_url":"https://api.github.com/repos/openshift/openshift-docs/keys{/key_id}","collaborators_url":"https://api.github.com/repos/openshift/openshift-docs/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/openshift/openshift-docs/teams","hooks_url":"https://api.github.com/repos/openshift/openshift-docs/hooks","issue_events_url":"https://api.github.com/repos/openshift/openshift-docs/issues/events{/number}","events_url":"https://api.github.com/repos/openshift/openshift-docs/events","assignees_url":"https://api.github.com/repos/openshift/openshift-docs/assignees{/user}","branches_url":"https://api.github.com/repos/openshift/openshift-docs/branches{/branch}","tags_url":"https://api.github.com/repos/openshift/openshift-docs/tags","blobs_url":"https://api.github.com/repos/openshift/openshift-docs/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/openshift/openshift-docs/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/openshift/openshift-docs/git/refs{/sha}","trees_url":"https://api.github.com/repos/openshift/openshift-docs/git/trees{/sha}","statuses_url":"https://api.github.com/repos/openshift/openshift-docs/statuses/{sha}","languages_url":"https://api.github.com/repos/openshift/openshift-docs/languages","stargazers_url":"https://api.github.com/repos/openshift/openshift-docs/stargazers","contributors_url":"https://api.github.com/repos/openshift/openshift-docs/contributors","subscribers_url":"https://api.github.com/repos/openshift/openshift-docs/subscribers","subscription_url":"https://api.github.com/repos/openshift/openshift-docs/subscription","commits_url":"https://api.github.com/repos/openshift/openshift-docs/commits{/sha}","git_commits_url":"https://api.github.com/repos/openshift/openshift-docs/git/commits{/sha}","comments_url":"https://api.github.com/repos/openshift/openshift-docs/comments{/number}","issue_comment_url":"https://api.github.com/repos/openshift/openshift-docs/issues/comments{/number}","contents_url":"https://api.github.com/repos/openshift/openshift-docs/contents/{+path}","compare_url":"https://api.github.com/repos/openshift/openshift-docs/compare/{base}...{head}","merges_url":"https://api.github.com/repos/openshift/openshift-docs/merges","archive_url":"https://api.github.com/repos/openshift/openshift-docs/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/openshift/openshift-docs/downloads","issues_url":"https://api.github.com/repos/openshift/openshift-docs/issues{/number}","pulls_url":"https://api.github.com/repos/openshift/openshift-docs/pulls{/number}","milestones_url":"https://api.github.com/repos/openshift/openshift-docs/milestones{/number}","notifications_url":"https://api.github.com/repos/openshift/openshift-docs/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/openshift/openshift-docs/labels{/name}","releases_url":"https://api.github.com/repos/openshift/openshift-docs/releases{/id}","deployments_url":"https://api.github.com/repos/openshift/openshift-docs/deployments","created_at":"2014-07-11T15:14:42Z","updated_at":"2016-05-12T22:17:15Z","pushed_at":"2016-05-18T01:19:39Z","git_url":"git://github.com/openshift/openshift-docs.git","ssh_url":"git@github.com:openshift/openshift-docs.git","clone_url":"https://github.com/openshift/openshift-docs.git","svn_url":"https://github.com/openshift/openshift-docs","homepage":"https://docs.openshift.org/latest/welcome/index.html","size":15229,"stargazers_count":44,"watchers_count":44,"language":"CSS","has_issues":true,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":206,"mirror_url":null,"open_issues_count":178,"forks":206,"open_issues":178,"watchers":44,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108"},"html":{"href":"https://github.com/openshift/openshift-docs/pull/2108"},"issue":{"href":"https://api.github.com/repos/openshift/openshift-docs/issues/2108"},"comments":{"href":"https://api.github.com/repos/openshift/openshift-docs/issues/2108/comments"},"review_comments":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108/comments"},"review_comment":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/openshift/openshift-docs/pulls/2108/commits"},"statuses":{"href":"https://api.github.com/repos/openshift/openshift-docs/statuses/58a6a3f37fbc380925501e939c2afe11c4c4a98f"}}}}