[Gluster-infra] rebal-all-nodes-migrate.t always fails now

[Atin Mukherjee]

Based on what I have seen that any multi node test case will fail and the
above one is picked first from that group and If I am correct none of the
code fixes will go through the regression until this is fixed. I suspect it
to be an infra issue again. If we look at
https://review.gluster.org/#/c/glusterfs/+/22501/ &
https://build.gluster.org/job/centos7-regression/5382/ peer handshaking is
stuck as 127.1.1.1 is unable to receive a response back, did we end up
having firewall and other n/w settings screwed up? The test never fails
locally.

*15:51:21* Number of Peers: 2*15:51:21* *15:51:21* Hostname:
127.1.1.2*15:51:21* Uuid:
0e689ca8-d522-4b2f-b437-9dcde3579401*15:51:21* State: Accepted peer
request (Connected)*15:51:21* *15:51:21* Hostname: 127.1.1.3*15:51:21*
Uuid: a83a3bfa-729f-4a1c-8f9a-ae7d04ee4544*15:51:21* State: Accepted
peer request (Connected)
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