{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/38493657","id":38493657,"diff_hunk":"@@ -40,6 +40,11 @@ public int connectionTimeoutMs() {\n     return conf.getInt(\"spark.shuffle.io.connectionTimeout\", 120) * 1000;\n   }\n \n+  /** Read timeout in milliseconds. Default 120 secs. */\n+  public int readTimeoutSeconds() {\n+    return conf.getInt(\"spark.shuffle.io.readTimeout\", 120);","path":"network/common/src/main/java/org/apache/spark/network/util/TransportConf.java","position":6,"original_position":6,"commit_id":"04da09c085764349ca618eb543627570da3775fe","original_commit_id":"04da09c085764349ca618eb543627570da3775fe","user":{"login":"vanzin","id":1694083,"avatar_url":"https://avatars.githubusercontent.com/u/1694083?v=3","gravatar_id":"","url":"https://api.github.com/users/vanzin","html_url":"https://github.com/vanzin","followers_url":"https://api.github.com/users/vanzin/followers","following_url":"https://api.github.com/users/vanzin/following{/other_user}","gists_url":"https://api.github.com/users/vanzin/gists{/gist_id}","starred_url":"https://api.github.com/users/vanzin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vanzin/subscriptions","organizations_url":"https://api.github.com/users/vanzin/orgs","repos_url":"https://api.github.com/users/vanzin/repos","events_url":"https://api.github.com/users/vanzin/events{/privacy}","received_events_url":"https://api.github.com/users/vanzin/received_events","type":"User","site_admin":false},"body":"This could use `TimeUtils.timeStringAsSec` for extra friendly configuration.","created_at":"2015-09-02T02:16:18Z","updated_at":"2015-09-02T02:16:18Z","html_url":"https://github.com/apache/spark/pull/7653#discussion_r38493657","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/7653","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/38493657"},"html":{"href":"https://github.com/apache/spark/pull/7653#discussion_r38493657"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/7653"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/7653","id":40822180,"html_url":"https://github.com/apache/spark/pull/7653","diff_url":"https://github.com/apache/spark/pull/7653.diff","patch_url":"https://github.com/apache/spark/pull/7653.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/7653","number":7653,"state":"open","locked":false,"title":"[SPARK-9328] [WIP] [BRANCH-1.2] Add read timeouts to Netty IO layer","user":{"login":"JoshRosen","id":50748,"avatar_url":"https://avatars.githubusercontent.com/u/50748?v=3","gravatar_id":"","url":"https://api.github.com/users/JoshRosen","html_url":"https://github.com/JoshRosen","followers_url":"https://api.github.com/users/JoshRosen/followers","following_url":"https://api.github.com/users/JoshRosen/following{/other_user}","gists_url":"https://api.github.com/users/JoshRosen/gists{/gist_id}","starred_url":"https://api.github.com/users/JoshRosen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/JoshRosen/subscriptions","organizations_url":"https://api.github.com/users/JoshRosen/orgs","repos_url":"https://api.github.com/users/JoshRosen/repos","events_url":"https://api.github.com/users/JoshRosen/events{/privacy}","received_events_url":"https://api.github.com/users/JoshRosen/received_events","type":"User","site_admin":false},"body":"Spark's Netty-based network layer does not implement read timeouts which may lead to stalls during shuffle: if a remote shuffle server stalls while responding to a shuffle block fetch request but does not close the socket then the job may block until an OS-level socket timeout occurs.\r\n\r\nI think that we can fix this using Netty's ReadTimeoutHandler (http://stackoverflow.com/questions/13390363/netty-connecttimeoutmillis-vs-readtimeouthandler). The tricky part of working on this will be figuring out the right place to add the handler and ensuring that we don't introduce performance issues by not re-using sockets.\r\n\r\nQuoting from that linked StackOverflow question:\r\n\r\n> Note that the ReadTimeoutHandler is also unaware of whether you have sent a request - it only cares whether data has been read from the socket. If your connection is persistent, and you only want read timeouts to fire when a request has been sent, you'll need to build a request / response aware timeout handler.\r\n\r\nIf we want to avoid tearing down connections between shuffles then we may have to do something like this.\r\n\r\nThis WIP pull request exists to discuss approaches to implementing this type of timeout.  I have opened it against `branch-1.2` because I'm trying to target a backport patch for a 1.2.x system. Once I've fixed this for branch-1.2 I will forward-port an updated version of this patch to newer releases.","created_at":"2015-07-24T22:35:46Z","updated_at":"2015-09-02T02:16:18Z","closed_at":null,"merged_at":null,"merge_commit_sha":"42db670c814673e5e369af41ae3017caa9bbc943","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/7653/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/7653/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/7653/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/04da09c085764349ca618eb543627570da3775fe","head":{"label":"JoshRosen:SPARK-9328-branch-1.2","ref":"SPARK-9328-branch-1.2","sha":"04da09c085764349ca618eb543627570da3775fe","user":{"login":"JoshRosen","id":50748,"avatar_url":"https://avatars.githubusercontent.com/u/50748?v=3","gravatar_id":"","url":"https://api.github.com/users/JoshRosen","html_url":"https://github.com/JoshRosen","followers_url":"https://api.github.com/users/JoshRosen/followers","following_url":"https://api.github.com/users/JoshRosen/following{/other_user}","gists_url":"https://api.github.com/users/JoshRosen/gists{/gist_id}","starred_url":"https://api.github.com/users/JoshRosen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/JoshRosen/subscriptions","organizations_url":"https://api.github.com/users/JoshRosen/orgs","repos_url":"https://api.github.com/users/JoshRosen/repos","events_url":"https://api.github.com/users/JoshRosen/events{/privacy}","received_events_url":"https://api.github.com/users/JoshRosen/received_events","type":"User","site_admin":false},"repo":{"id":22238710,"name":"spark","full_name":"JoshRosen/spark","owner":{"login":"JoshRosen","id":50748,"avatar_url":"https://avatars.githubusercontent.com/u/50748?v=3","gravatar_id":"","url":"https://api.github.com/users/JoshRosen","html_url":"https://github.com/JoshRosen","followers_url":"https://api.github.com/users/JoshRosen/followers","following_url":"https://api.github.com/users/JoshRosen/following{/other_user}","gists_url":"https://api.github.com/users/JoshRosen/gists{/gist_id}","starred_url":"https://api.github.com/users/JoshRosen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/JoshRosen/subscriptions","organizations_url":"https://api.github.com/users/JoshRosen/orgs","repos_url":"https://api.github.com/users/JoshRosen/repos","events_url":"https://api.github.com/users/JoshRosen/events{/privacy}","received_events_url":"https://api.github.com/users/JoshRosen/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/JoshRosen/spark","description":"Mirror of Apache Spark","fork":true,"url":"https://api.github.com/repos/JoshRosen/spark","forks_url":"https://api.github.com/repos/JoshRosen/spark/forks","keys_url":"https://api.github.com/repos/JoshRosen/spark/keys{/key_id}","collaborators_url":"https://api.github.com/repos/JoshRosen/spark/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/JoshRosen/spark/teams","hooks_url":"https://api.github.com/repos/JoshRosen/spark/hooks","issue_events_url":"https://api.github.com/repos/JoshRosen/spark/issues/events{/number}","events_url":"https://api.github.com/repos/JoshRosen/spark/events","assignees_url":"https://api.github.com/repos/JoshRosen/spark/assignees{/user}","branches_url":"https://api.github.com/repos/JoshRosen/spark/branches{/branch}","tags_url":"https://api.github.com/repos/JoshRosen/spark/tags","blobs_url":"https://api.github.com/repos/JoshRosen/spark/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/JoshRosen/spark/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/JoshRosen/spark/git/refs{/sha}","trees_url":"https://api.github.com/repos/JoshRosen/spark/git/trees{/sha}","statuses_url":"https://api.github.com/repos/JoshRosen/spark/statuses/{sha}","languages_url":"https://api.github.com/repos/JoshRosen/spark/languages","stargazers_url":"https://api.github.com/repos/JoshRosen/spark/stargazers","contributors_url":"https://api.github.com/repos/JoshRosen/spark/contributors","subscribers_url":"https://api.github.com/repos/JoshRosen/spark/subscribers","subscription_url":"https://api.github.com/repos/JoshRosen/spark/subscription","commits_url":"https://api.github.com/repos/JoshRosen/spark/commits{/sha}","git_commits_url":"https://api.github.com/repos/JoshRosen/spark/git/commits{/sha}","comments_url":"https://api.github.com/repos/JoshRosen/spark/comments{/number}","issue_comment_url":"https://api.github.com/repos/JoshRosen/spark/issues/comments{/number}","contents_url":"https://api.github.com/repos/JoshRosen/spark/contents/{+path}","compare_url":"https://api.github.com/repos/JoshRosen/spark/compare/{base}...{head}","merges_url":"https://api.github.com/repos/JoshRosen/spark/merges","archive_url":"https://api.github.com/repos/JoshRosen/spark/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/JoshRosen/spark/downloads","issues_url":"https://api.github.com/repos/JoshRosen/spark/issues{/number}","pulls_url":"https://api.github.com/repos/JoshRosen/spark/pulls{/number}","milestones_url":"https://api.github.com/repos/JoshRosen/spark/milestones{/number}","notifications_url":"https://api.github.com/repos/JoshRosen/spark/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/JoshRosen/spark/labels{/name}","releases_url":"https://api.github.com/repos/JoshRosen/spark/releases{/id}","created_at":"2014-07-25T00:47:52Z","updated_at":"2015-05-01T22:45:32Z","pushed_at":"2015-09-01T16:47:10Z","git_url":"git://github.com/JoshRosen/spark.git","ssh_url":"git@github.com:JoshRosen/spark.git","clone_url":"https://github.com/JoshRosen/spark.git","svn_url":"https://github.com/JoshRosen/spark","homepage":null,"size":124806,"stargazers_count":1,"watchers_count":1,"language":"Scala","has_issues":false,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":3,"mirror_url":null,"open_issues_count":0,"forks":3,"open_issues":0,"watchers":1,"default_branch":"master"}},"base":{"label":"apache:branch-1.2","ref":"branch-1.2","sha":"1c38d42540b84f6d1e20d12cb1ade9704021ea12","user":{"login":"apache","id":47359,"avatar_url":"https://avatars.githubusercontent.com/u/47359?v=3","gravatar_id":"","url":"https://api.github.com/users/apache","html_url":"https://github.com/apache","followers_url":"https://api.github.com/users/apache/followers","following_url":"https://api.github.com/users/apache/following{/other_user}","gists_url":"https://api.github.com/users/apache/gists{/gist_id}","starred_url":"https://api.github.com/users/apache/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/apache/subscriptions","organizations_url":"https://api.github.com/users/apache/orgs","repos_url":"https://api.github.com/users/apache/repos","events_url":"https://api.github.com/users/apache/events{/privacy}","received_events_url":"https://api.github.com/users/apache/received_events","type":"Organization","site_admin":false},"repo":{"id":17165658,"name":"spark","full_name":"apache/spark","owner":{"login":"apache","id":47359,"avatar_url":"https://avatars.githubusercontent.com/u/47359?v=3","gravatar_id":"","url":"https://api.github.com/users/apache","html_url":"https://github.com/apache","followers_url":"https://api.github.com/users/apache/followers","following_url":"https://api.github.com/users/apache/following{/other_user}","gists_url":"https://api.github.com/users/apache/gists{/gist_id}","starred_url":"https://api.github.com/users/apache/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/apache/subscriptions","organizations_url":"https://api.github.com/users/apache/orgs","repos_url":"https://api.github.com/users/apache/repos","events_url":"https://api.github.com/users/apache/events{/privacy}","received_events_url":"https://api.github.com/users/apache/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/apache/spark","description":"Mirror of Apache Spark","fork":false,"url":"https://api.github.com/repos/apache/spark","forks_url":"https://api.github.com/repos/apache/spark/forks","keys_url":"https://api.github.com/repos/apache/spark/keys{/key_id}","collaborators_url":"https://api.github.com/repos/apache/spark/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/apache/spark/teams","hooks_url":"https://api.github.com/repos/apache/spark/hooks","issue_events_url":"https://api.github.com/repos/apache/spark/issues/events{/number}","events_url":"https://api.github.com/repos/apache/spark/events","assignees_url":"https://api.github.com/repos/apache/spark/assignees{/user}","branches_url":"https://api.github.com/repos/apache/spark/branches{/branch}","tags_url":"https://api.github.com/repos/apache/spark/tags","blobs_url":"https://api.github.com/repos/apache/spark/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/apache/spark/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/apache/spark/git/refs{/sha}","trees_url":"https://api.github.com/repos/apache/spark/git/trees{/sha}","statuses_url":"https://api.github.com/repos/apache/spark/statuses/{sha}","languages_url":"https://api.github.com/repos/apache/spark/languages","stargazers_url":"https://api.github.com/repos/apache/spark/stargazers","contributors_url":"https://api.github.com/repos/apache/spark/contributors","subscribers_url":"https://api.github.com/repos/apache/spark/subscribers","subscription_url":"https://api.github.com/repos/apache/spark/subscription","commits_url":"https://api.github.com/repos/apache/spark/commits{/sha}","git_commits_url":"https://api.github.com/repos/apache/spark/git/commits{/sha}","comments_url":"https://api.github.com/repos/apache/spark/comments{/number}","issue_comment_url":"https://api.github.com/repos/apache/spark/issues/comments{/number}","contents_url":"https://api.github.com/repos/apache/spark/contents/{+path}","compare_url":"https://api.github.com/repos/apache/spark/compare/{base}...{head}","merges_url":"https://api.github.com/repos/apache/spark/merges","archive_url":"https://api.github.com/repos/apache/spark/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/apache/spark/downloads","issues_url":"https://api.github.com/repos/apache/spark/issues{/number}","pulls_url":"https://api.github.com/repos/apache/spark/pulls{/number}","milestones_url":"https://api.github.com/repos/apache/spark/milestones{/number}","notifications_url":"https://api.github.com/repos/apache/spark/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/apache/spark/labels{/name}","releases_url":"https://api.github.com/repos/apache/spark/releases{/id}","created_at":"2014-02-25T08:00:08Z","updated_at":"2015-09-02T00:39:25Z","pushed_at":"2015-09-02T01:29:59Z","git_url":"git://github.com/apache/spark.git","ssh_url":"git@github.com:apache/spark.git","clone_url":"https://github.com/apache/spark.git","svn_url":"https://github.com/apache/spark","homepage":null,"size":1706879,"stargazers_count":5272,"watchers_count":5272,"language":"Scala","has_issues":false,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":4839,"mirror_url":"git://git.apache.org/spark.git","open_issues_count":366,"forks":4839,"open_issues":366,"watchers":5272,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/7653"},"html":{"href":"https://github.com/apache/spark/pull/7653"},"issue":{"href":"https://api.github.com/repos/apache/spark/issues/7653"},"comments":{"href":"https://api.github.com/repos/apache/spark/issues/7653/comments"},"review_comments":{"href":"https://api.github.com/repos/apache/spark/pulls/7653/comments"},"review_comment":{"href":"https://api.github.com/repos/apache/spark/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/apache/spark/pulls/7653/commits"},"statuses":{"href":"https://api.github.com/repos/apache/spark/statuses/04da09c085764349ca618eb543627570da3775fe"}}}}