@Override
    public void memberRemoved(PersistentMemberID persistentID, boolean revoked) {
      removedMembers.add(persistentID);
    }
Finish the atomic creation of this bucket on multiple members This method is called with the
proxy bucket synchronized.
geode-core/src/main/java/org/apache/geode/internal/cache/BucketPersistenceAdvisor.java