{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/10376","labels_url":"https://api.github.com/repos/apache/spark/issues/10376/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/10376/comments","events_url":"https://api.github.com/repos/apache/spark/issues/10376/events","html_url":"https://github.com/apache/spark/pull/10376","id":122923393,"number":10376,"title":"[SPARK-12400][Shuffle] Avoid generating temp shuffle files for empty partitions","user":{"login":"jerryshao","id":850797,"avatar_url":"https://avatars.githubusercontent.com/u/850797?v=3","gravatar_id":"","url":"https://api.github.com/users/jerryshao","html_url":"https://github.com/jerryshao","followers_url":"https://api.github.com/users/jerryshao/followers","following_url":"https://api.github.com/users/jerryshao/following{/other_user}","gists_url":"https://api.github.com/users/jerryshao/gists{/gist_id}","starred_url":"https://api.github.com/users/jerryshao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jerryshao/subscriptions","organizations_url":"https://api.github.com/users/jerryshao/orgs","repos_url":"https://api.github.com/users/jerryshao/repos","events_url":"https://api.github.com/users/jerryshao/events{/privacy}","received_events_url":"https://api.github.com/users/jerryshao/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-12-18T10:31:15Z","updated_at":"2015-12-18T12:21:07Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/10376","html_url":"https://github.com/apache/spark/pull/10376","diff_url":"https://github.com/apache/spark/pull/10376.diff","patch_url":"https://github.com/apache/spark/pull/10376.patch"},"body":"This problem lies in `BypassMergeSortShuffleWriter`, empty partition will also generate a temp shuffle file with several bytes. So here change to only create file when partition is not empty.\r\n\r\nThis problem only lies in here, no such issue in `HashShuffleWriter`.\r\n\r\nPlease help to review, thanks a lot."},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/165766403","html_url":"https://github.com/apache/spark/pull/10376#issuecomment-165766403","issue_url":"https://api.github.com/repos/apache/spark/issues/10376","id":165766403,"user":{"login":"AmplabJenkins","id":4031291,"avatar_url":"https://avatars.githubusercontent.com/u/4031291?v=3","gravatar_id":"","url":"https://api.github.com/users/AmplabJenkins","html_url":"https://github.com/AmplabJenkins","followers_url":"https://api.github.com/users/AmplabJenkins/followers","following_url":"https://api.github.com/users/AmplabJenkins/following{/other_user}","gists_url":"https://api.github.com/users/AmplabJenkins/gists{/gist_id}","starred_url":"https://api.github.com/users/AmplabJenkins/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AmplabJenkins/subscriptions","organizations_url":"https://api.github.com/users/AmplabJenkins/orgs","repos_url":"https://api.github.com/users/AmplabJenkins/repos","events_url":"https://api.github.com/users/AmplabJenkins/events{/privacy}","received_events_url":"https://api.github.com/users/AmplabJenkins/received_events","type":"User","site_admin":false},"created_at":"2015-12-18T12:21:06Z","updated_at":"2015-12-18T12:21:06Z","body":"Merged build finished. Test PASSed."}}