{"action":"created","issue":{"url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/89","labels_url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/89/labels{/name}","comments_url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/89/comments","events_url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/89/events","html_url":"https://github.com/rwz/ember-cli-rails/issues/89","id":58133448,"number":89,"title":"Issue with puma concurrency","user":{"login":"canuc","id":1091815,"avatar_url":"https://avatars.githubusercontent.com/u/1091815?v=3","gravatar_id":"","url":"https://api.github.com/users/canuc","html_url":"https://github.com/canuc","followers_url":"https://api.github.com/users/canuc/followers","following_url":"https://api.github.com/users/canuc/following{/other_user}","gists_url":"https://api.github.com/users/canuc/gists{/gist_id}","starred_url":"https://api.github.com/users/canuc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/canuc/subscriptions","organizations_url":"https://api.github.com/users/canuc/orgs","repos_url":"https://api.github.com/users/canuc/repos","events_url":"https://api.github.com/users/canuc/events{/privacy}","received_events_url":"https://api.github.com/users/canuc/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-02-18T21:47:52Z","updated_at":"2015-02-26T00:35:11Z","closed_at":null,"body":"When developing get the error:\r\n\r\n```\r\n16:16:33  file changed styles/main.less\r\n16:16:33  file changed styles/main.less\r\n16:16:36  EEXIST, file already exists '/Users/{user}/data/{project}/tmp/ember-cli-477a1ffb-8359-4e3f-a1ec-86741c388c36/apps/dashboard/assets/vendor.map'\r\n```\r\n\r\nWorkaround:\r\n\r\nFound that reducing the max concurrent workers to 1 fixed the issue.\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/comments/76097587","html_url":"https://github.com/rwz/ember-cli-rails/issues/89#issuecomment-76097587","issue_url":"https://api.github.com/repos/rwz/ember-cli-rails/issues/89","id":76097587,"user":{"login":"rwz","id":129043,"avatar_url":"https://avatars.githubusercontent.com/u/129043?v=3","gravatar_id":"","url":"https://api.github.com/users/rwz","html_url":"https://github.com/rwz","followers_url":"https://api.github.com/users/rwz/followers","following_url":"https://api.github.com/users/rwz/following{/other_user}","gists_url":"https://api.github.com/users/rwz/gists{/gist_id}","starred_url":"https://api.github.com/users/rwz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rwz/subscriptions","organizations_url":"https://api.github.com/users/rwz/orgs","repos_url":"https://api.github.com/users/rwz/repos","events_url":"https://api.github.com/users/rwz/events{/privacy}","received_events_url":"https://api.github.com/users/rwz/received_events","type":"User","site_admin":false},"created_at":"2015-02-26T00:35:11Z","updated_at":"2015-02-26T00:35:11Z","body":"> I think the problem is that Ember-cli-rails is creating N ember instances for each worket. \r\nThat is correct.\r\n\r\nHonestly, I don't know how to detect multiple worker situation properly and consistently. The assumption was that this should only happen in development environment and people usually don't run multiple workers in development environment. Apparently it's false :)"}}