Rebalance out of an analytics node after running lots of queries hangs

Build : 5.0.0-807 (RC1) (also seen in 5.0.0-802)

This issue is seen only on Windows

This issue is similar to MB-26400. We have a test that runs 4096 queries in batches of 200 queries in async mode. This is the query - select sleep(count,500) from default_ds.
All queries run fine. But rebalance out of the analytics node (the only analytics node in the cluster) is stuck at 75% for more than 10 mins. The test then exits, but the subsequent rebalances fail and the subsequent tests fail. The cluster is unusable after that, and needs reinstallation.

However, the following errors that were seen in MB-26400 are not seen here:
org.apache.hyracks.api.exceptions.HyracksDataException: Index resource couldn't be found. Has it been created yet? Was it deleted?