tree 87b6322eb3cfbfa7949cf96ce78dfafc7cbf9530
parent eb40e1515aef2e9e2fdd3411f5280618f7ee3395
author Jiajun Wang <1803880+jiajunwang@users.noreply.github.com> 1579807847 -0800
committer Jiajun Wang <1803880+jiajunwang@users.noreply.github.com> 1581107062 -0800

Add WAGED rebalancer reset method to clean up cached status. (#696)

The reset method is for cleaning up any in-memory records within the WAGED rebalancer so we don't need to recreate one.

Detailed change list:
1. Add reset methods to all the stateful objects that are used in the WAGED rebalancer.
2. Refine some of the potential race condition in the WAGED rebalancer components.
3. Adjust the tests accordingly. Also adding new tests to cover the components reset / the WAGED rebalancer reset logic.