{"action":"created","comment":{"url":"https://api.github.com/repos/apache/reef/pulls/comments/81625010","pull_request_review_id":2591770,"id":81625010,"diff_hunk":"@@ -84,12 +87,52 @@ internal sealed class BroadcastSenderReduceReceiverUpdateFunction : IUpdateFunct\n         /// <returns>Map input</returns>\n         UpdateResult<int[], int[]> IUpdateFunction<int[], int[], int[]>.Initialize()\n         {\n-            for (int i = 0; i < _dim; i++)\n+            if (_taskState != null && _taskState.Result != null && (_taskState.Result.HasMapInput || _taskState.Result.HasResult))\n             {\n-                _intArr[i] = _iterations + 1;\n+                if (_taskState.Result.HasMapInput)\n+                {\n+                    Restore(_taskState.Result.MapInput);\n+                }\n+                else if (_taskState.Result.HasResult)\n+                {\n+                    Restore(_taskState.Result.Result);\n+                }\n+                _iterations = _taskState.Iterations;\n+            }\n+            else\n+            {\n+                for (int i = 0; i < _dim; i++)\n+                {\n+                    _intArr[i] = _iterations + 1;","path":"lang/cs/Org.Apache.REEF.IMRU.Examples/PipelinedBroadcastReduce/BroadcastSenderReduceReceiverUpdateFunction.cs","position":80,"original_position":80,"commit_id":"a289f924849f4983425b95f9b3ad9a2ff625e5ee","original_commit_id":"a289f924849f4983425b95f9b3ad9a2ff625e5ee","user":{"login":"jwang98052","id":5666504,"avatar_url":"https://avatars.githubusercontent.com/u/5666504?v=3","gravatar_id":"","url":"https://api.github.com/users/jwang98052","html_url":"https://github.com/jwang98052","followers_url":"https://api.github.com/users/jwang98052/followers","following_url":"https://api.github.com/users/jwang98052/following{/other_user}","gists_url":"https://api.github.com/users/jwang98052/gists{/gist_id}","starred_url":"https://api.github.com/users/jwang98052/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jwang98052/subscriptions","organizations_url":"https://api.github.com/users/jwang98052/orgs","repos_url":"https://api.github.com/users/jwang98052/repos","events_url":"https://api.github.com/users/jwang98052/events{/privacy}","received_events_url":"https://api.github.com/users/jwang98052/received_events","type":"User","site_admin":false},"body":"That's true. It was original code. ","created_at":"2016-10-03T19:47:08Z","updated_at":"2016-10-03T19:47:08Z","html_url":"https://github.com/apache/reef/pull/1131#discussion_r81625010","pull_request_url":"https://api.github.com/repos/apache/reef/pulls/1131","_links":{"self":{"href":"https://api.github.com/repos/apache/reef/pulls/comments/81625010"},"html":{"href":"https://github.com/apache/reef/pull/1131#discussion_r81625010"},"pull_request":{"href":"https://api.github.com/repos/apache/reef/pulls/1131"}}},"pull_request":{"url":"https://api.github.com/repos/apache/reef/pulls/1131","id":86815155,"html_url":"https://github.com/apache/reef/pull/1131","diff_url":"https://github.com/apache/reef/pull/1131.diff","patch_url":"https://github.com/apache/reef/pull/1131.patch","issue_url":"https://api.github.com/repos/apache/reef/issues/1131","number":1131,"state":"open","locked":false,"title":"[REEF-1404] IMRU task state Maintenance and Preservation in Evaluator…","user":{"login":"jwang98052","id":5666504,"avatar_url":"https://avatars.githubusercontent.com/u/5666504?v=3","gravatar_id":"","url":"https://api.github.com/users/jwang98052","html_url":"https://github.com/jwang98052","followers_url":"https://api.github.com/users/jwang98052/followers","following_url":"https://api.github.com/users/jwang98052/following{/other_user}","gists_url":"https://api.github.com/users/jwang98052/gists{/gist_id}","starred_url":"https://api.github.com/users/jwang98052/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jwang98052/subscriptions","organizations_url":"https://api.github.com/users/jwang98052/orgs","repos_url":"https://api.github.com/users/jwang98052/repos","events_url":"https://api.github.com/users/jwang98052/events{/privacy}","received_events_url":"https://api.github.com/users/jwang98052/received_events","type":"User","site_admin":false},"body":"… for fault tolerant\r\n\r\nBased on the JIRA discussions, this PR is to do the task state management in the following approach:\r\n* Define ITaskState interface without any API and generic type. It is up to the task/task function to implement it.\r\n* Defines a TaskStateService and bind it to context layer so that the task state can be hold at context level\r\n* Make TaskState configurable from IMRU Job definition\r\n\r\nThe following changes are in the PR:\r\n\r\n* Define ITaskState interface in IMRU and default implementation\r\n* Define MapTaskState and UpdateTaskState in IMRU example\r\n* Modify IMRU JobDefinition and IMRUJobDefinitionBuilder to all the task state to be configured\r\n* Modify ConfigurationManager for managing updateTaskStateConfiguration and mapTaskStateConfiguration\r\n* Modify ServiceAndContextConfigurationProvider to set the service and state configurations\r\n* Add TaskStateService to bind it to context for holding ITaskState instance\r\n* Change Update and map function in IMRU example and test to save and restore the state\r\n\r\nJIRA: [REEF-1404](https://issues.apache.org/jira/browse/REEF-1404)\r\nThis closes 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