enjoyear opened a new pull request #2818: [GOBBLIN-963] Remove duplicated copies of TaskContext/TaskState when constructing TaskIFaceWrapper URL: https://github.com/apache/incubator-gobblin/pull/2818 Dear Gobblin maintainers, Please accept this PR. I understand that it will not be reviewed until I have checked off all the steps below! ### JIRA - [X] My PR addresses the following [Gobblin JIRA](https://issues.apache.org/jira/browse/GOBBLIN/) issues and references them in the PR title. For example, "[GOBBLIN-963] My Gobblin PR" - https://issues.apache.org/jira/browse/GOBBLIN-963 ### Description - [X] Here are some details about my PR, including screenshots (if applicable): Currently in GobblinMultiTaskAttempt, when we call createTaskRunnable, we rely on a TaskFactory to create a task and return a wrapper for that task. However, when we create the wrapper, we initialized the TaskContext twice. For the task creation For the task wrapper creation These two TaskContexts, which generate two copies of TaskState, will cause inconsistency in the following operation. The task state update within the task won't be reflected in TaskWrapper. Specifically, this is the buggy line of code ```java return new TaskIFaceWrapper(taskFactoryOpt.get().createTask(new TaskContext(workUnitState)), new TaskContext(workUnitState), countDownLatch, this.taskStateTracker); ``` Ideally, we should create the TaskContext once, and reuse the same TaskContext. ### Tests - [X] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason: ### Commits - [X] My commits all reference JIRA issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)": 1. Subject is separated from body by a blank line 2. Subject is limited to 50 characters 3. Subject does not end with a period 4. Subject uses the imperative mood ("add", not "adding") 5. Body wraps at 72 characters 6. Body explains "what" and "why", not "how"
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