tree 628855776378759a5f8c73f3915fde718d5ae777
parent fe00b1af941382c3f47737e9b0d5a9b667365dc7
author Yingyi Bu <yingyi@couchbase.com> 1498172612 -0700
committer Yingyi Bu <buyingyi@gmail.com> 1498234993 -0700

[ASTERIXDB-1943][API][STO] Make rebalance idempotent.

- user model changes:
  added rebalance cancellation HTTP API.

- storage format changes: no

- interface changes: no

Details:
- add a HTTP API for cancelling a rebalance request;
- clean up leftover states at the beginning of a
  rebalance request;
- add tests for rebalance cancellation.

Change-Id: I0d14a07978e106cd497cc35538fafef318b2fcf7
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1821
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>