{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/12776","repository_url":"https://api.github.com/repos/apache/spark","labels_url":"https://api.github.com/repos/apache/spark/issues/12776/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/12776/comments","events_url":"https://api.github.com/repos/apache/spark/issues/12776/events","html_url":"https://github.com/apache/spark/pull/12776","id":151820293,"number":12776,"title":"Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals","user":{"login":"tedyu","id":235188,"avatar_url":"https://avatars.githubusercontent.com/u/235188?v=3","gravatar_id":"","url":"https://api.github.com/users/tedyu","html_url":"https://github.com/tedyu","followers_url":"https://api.github.com/users/tedyu/followers","following_url":"https://api.github.com/users/tedyu/following{/other_user}","gists_url":"https://api.github.com/users/tedyu/gists{/gist_id}","starred_url":"https://api.github.com/users/tedyu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tedyu/subscriptions","organizations_url":"https://api.github.com/users/tedyu/orgs","repos_url":"https://api.github.com/users/tedyu/repos","events_url":"https://api.github.com/users/tedyu/events{/privacy}","received_events_url":"https://api.github.com/users/tedyu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":7,"created_at":"2016-04-29T08:48:06Z","updated_at":"2016-04-29T14:42:34Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/12776","html_url":"https://github.com/apache/spark/pull/12776","diff_url":"https://github.com/apache/spark/pull/12776.diff","patch_url":"https://github.com/apache/spark/pull/12776.patch"},"body":"## What changes were proposed in this pull request?\r\n\r\nThis PR proposes to use ConcurrentHashMap in place of HashMap for NewAccumulator.originals\r\n\r\nThis should result in better performance.\r\n\r\n## How was this patch tested?\r\n\r\nExisting unit test suite\r\n\r\n@cloud-fan"},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/215740221","html_url":"https://github.com/apache/spark/pull/12776#issuecomment-215740221","issue_url":"https://api.github.com/repos/apache/spark/issues/12776","id":215740221,"user":{"login":"SparkQA","id":8108735,"avatar_url":"https://avatars.githubusercontent.com/u/8108735?v=3","gravatar_id":"","url":"https://api.github.com/users/SparkQA","html_url":"https://github.com/SparkQA","followers_url":"https://api.github.com/users/SparkQA/followers","following_url":"https://api.github.com/users/SparkQA/following{/other_user}","gists_url":"https://api.github.com/users/SparkQA/gists{/gist_id}","starred_url":"https://api.github.com/users/SparkQA/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SparkQA/subscriptions","organizations_url":"https://api.github.com/users/SparkQA/orgs","repos_url":"https://api.github.com/users/SparkQA/repos","events_url":"https://api.github.com/users/SparkQA/events{/privacy}","received_events_url":"https://api.github.com/users/SparkQA/received_events","type":"User","site_admin":false},"created_at":"2016-04-29T14:42:33Z","updated_at":"2016-04-29T14:42:33Z","body":"**[Test build #57342 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/57342/consoleFull)** for PR 12776 at commit [`c6d2a15`](https://github.com/apache/spark/commit/c6d2a15b9f77497291762a8736c3980373e2743a)."}}