jiajunwang opened a new pull request #543: Change change detector to a regular field in the WAGED rebalaner instead of static threadlocal. URL: https://github.com/apache/helix/pull/543 ### Issues - [ ] My PR addresses the following Helix issues and references them in the PR description: #540 ### Description - [ ] Here are some details about my PR, including screenshots of any UI changes: The rebalance has been modified to be a thread-local object. So there is no need to keep the change detector as thread-local. This may cause a potential problem. In addition, in order to avoid resource leakage, implement the finalize method of the WagedRebalancer to close all connections. ### Tests - [ ] The following tests are written for this issue: TestWagedRebalancer - [ ] The following is the result of the "mvn test" command on the appropriate module: (Copy & paste the result of "mvn test") ### Commits - [ ] My commits all reference appropriate Apache Helix GitHub 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 1. Subject is limited to 50 characters (not including Jira issue reference) 1. Subject does not end with a period 1. Subject uses the imperative mood ("add", not "adding") 1. Body wraps at 72 characters 1. Body explains "what" and "why", not "how" ### Documentation - [ ] In case of new functionality, my PR adds documentation in the following wiki page: NA ### Code Quality - [ ] My diff has been formatted using helix-style.xml
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