{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/12944","repository_url":"https://api.github.com/repos/apache/spark","labels_url":"https://api.github.com/repos/apache/spark/issues/12944/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/12944/comments","events_url":"https://api.github.com/repos/apache/spark/issues/12944/events","html_url":"https://github.com/apache/spark/pull/12944","id":153357475,"number":12944,"title":"[SPARK-15074][Shuffle] Cache shuffle index file to speedup shuffle fetch","user":{"login":"sitalkedia","id":11507549,"avatar_url":"https://avatars.githubusercontent.com/u/11507549?v=3","gravatar_id":"","url":"https://api.github.com/users/sitalkedia","html_url":"https://github.com/sitalkedia","followers_url":"https://api.github.com/users/sitalkedia/followers","following_url":"https://api.github.com/users/sitalkedia/following{/other_user}","gists_url":"https://api.github.com/users/sitalkedia/gists{/gist_id}","starred_url":"https://api.github.com/users/sitalkedia/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sitalkedia/subscriptions","organizations_url":"https://api.github.com/users/sitalkedia/orgs","repos_url":"https://api.github.com/users/sitalkedia/repos","events_url":"https://api.github.com/users/sitalkedia/events{/privacy}","received_events_url":"https://api.github.com/users/sitalkedia/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2016-05-06T00:55:21Z","updated_at":"2016-05-24T14:12:46Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/12944","html_url":"https://github.com/apache/spark/pull/12944","diff_url":"https://github.com/apache/spark/pull/12944.diff","patch_url":"https://github.com/apache/spark/pull/12944.patch"},"body":"## What changes were proposed in this pull request?\r\n\r\nShuffle fetch on large intermediate dataset is slow because the shuffle service open/close the index file for each shuffle fetch. This change introduces a cache for the index information so that we can avoid accessing the index files for each block fetch\r\n\r\n\r\n## How was this patch tested?\r\n\r\nTested by running a job on the cluster and the shuffle read time was reduced by 50%.\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/221283774","html_url":"https://github.com/apache/spark/pull/12944#issuecomment-221283774","issue_url":"https://api.github.com/repos/apache/spark/issues/12944","id":221283774,"user":{"login":"sitalkedia","id":11507549,"avatar_url":"https://avatars.githubusercontent.com/u/11507549?v=3","gravatar_id":"","url":"https://api.github.com/users/sitalkedia","html_url":"https://github.com/sitalkedia","followers_url":"https://api.github.com/users/sitalkedia/followers","following_url":"https://api.github.com/users/sitalkedia/following{/other_user}","gists_url":"https://api.github.com/users/sitalkedia/gists{/gist_id}","starred_url":"https://api.github.com/users/sitalkedia/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sitalkedia/subscriptions","organizations_url":"https://api.github.com/users/sitalkedia/orgs","repos_url":"https://api.github.com/users/sitalkedia/repos","events_url":"https://api.github.com/users/sitalkedia/events{/privacy}","received_events_url":"https://api.github.com/users/sitalkedia/received_events","type":"User","site_admin":false},"created_at":"2016-05-24T14:12:46Z","updated_at":"2016-05-24T14:12:46Z","body":"cc - @srowen "}}
{"actor":{"display_login":"sitalkedia"}}