+++ This bug was initially created as a clone of Bug #1640465 +++

Description of problem:
======================
While migrating the Hosted Engine to other hosts available in the cluster,the migration fails.

Version-Release number of selected component (if applicable):
============================================================
redhat-release-virtualization-host-4.2-7.3
libvirt-4.5.0-10.el7_6.2.x86_64
ovirt-hosted-engine-ha-2.2.18-1.el7ev.noarch

How reproducible:
================
100%

Steps to Reproduce:
==================
1.Deploy RHHI( Hosted Engine setup with 3 hosts)
2.The hosts are capable of hosting the HE
3.Migrate the HE to any of the hosts within the cluster

Actual results:
==============
The migration fails to other hosts

Expected results:
================
The migration should be successful


Additional info:
===============

This issue looks similar to 1632711. 
Also to note, the application vm's are able to migrate but the Hosted Engine vm fails to migrate. 

PS: The libvirt changes are applied

--- Additional comment from Red Hat Bugzilla Rules Engine on 2018-10-18 03:02:53 EDT ---

This request has been proposed as a blocker, but a release flag has not been requested. Please set a release flag to ? to ensure we may track this bug against the appropriate upcoming release, and reset the blocker flag to ?.

--- Additional comment from bipin on 2018-10-18 03:03:40 EDT ---

engine log:
==========
2018-10-18 11:46:09,417+05 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-706) [] START, MigrateStatusVDSCommand(HostName = rhsqa-grafton7-nic2.lab.eng.blr.redhat.com, MigrateStatusVDSCommandParameters:{hostId='ba522bcc-96e2-46e7-9bcb-db6305f7c82c', vmId='3338d78c-c2a0-4f16-a79b-d2fdff5ae2d6'}), log id: 7958da7b
2018-10-18 11:46:09,422+05 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-706) [] FINISH, MigrateStatusVDSCommand, log id: 7958da7b
2018-10-18 11:46:09,433+05 WARN  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-706) [] EVENT_ID: VM_MIGRATION_TRYING_RERUN(128), Failed to migrate VM HostedEngine to Host rhsqa-grafton8-nic2.lab.eng.blr.redhat.com . Trying to migrate to another Host.
2018-10-18 11:46:09,512+05 WARN  [org.ovirt.engine.core.bll.MigrateVmCommand] (EE-ManagedThreadFactory-engine-Thread-706) [] Validation of action 'MigrateVm' failed for user admin@internal-authz. Reasons: VAR__ACTION__MIGRATE,VAR__TYPE__VM,VAR__ACTION__MIGRATE,VAR__TYPE__VM,VAR__ACTION__MIGRATE,VAR__TYPE__VM,VAR__ACTION__MIGRATE,VAR__TYPE__VM,SCHEDULING_NO_HOSTS
2018-10-18 11:46:09,534+05 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-706) [] EVENT_ID: VM_MIGRATION_FAILED(65), Migration failed  (VM: Ho
stedEngine, Source: rhsqa-grafton7-nic2.lab.eng.blr.redhat.com).




vdsm log:
========
2018-10-18 11:46:09,031+0530 INFO  (migsrc/3338d78c) [virt.vm] (vmId='3338d78c-c2a0-4f16-a79b-d2fdff5ae2d6') starting migration to qemu+tls://rhsqa-grafton8-nic2.lab.eng.blr.redhat.com/system with miguri tcp://10.70.36.242 (migration:502)
2018-10-18 11:46:09,036+0530 ERROR (migsrc/3338d78c) [virt.vm] (vmId='3338d78c-c2a0-4f16-a79b-d2fdff5ae2d6') Unsafe migration: Migration without shared storage is unsafe (migration:290)
2018-10-18 11:46:09,256+0530 INFO  (jsonrpc/6) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:573)
2018-10-18 11:46:09,259+0530 INFO  (jsonrpc/3) [vdsm.api] START repoStats(domains=[u'e8cf4b06-2e59-4828-8a5d-243d6574896f']) from=::1,46260, task_id=7d309403-34e3-4254-b064-993bc54d1ef2 (api:46)
2018-10-18 11:46:09,259+0530 INFO  (jsonrpc/3) [vdsm.api] FINISH repoStats return={u'e8cf4b06-2e59-4828-8a5d-243d6574896f': {'code': 0, 'actual': True, 'version': 4, 'acquired': True, 'delay': '0.000750338', 'lastCheck': '2.1', 'valid': True}} from=::1,46260, task_id=7d309403-34e3-4254-b064-993bc54d1ef2 (api:52)
2018-10-18 11:46:09,259+0530 INFO  (jsonrpc/3) [jsonrpc.JsonRpcServer] RPC call Host.getStorageRepoStats succeeded in 0.00 seconds (__init__:573)
2018-10-18 11:46:09,366+0530 ERROR (migsrc/3338d78c) [virt.vm] (vmId='3338d78c-c2a0-4f16-a79b-d2fdff5ae2d6') Failed to migrate (migration:455)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 437, in _regular_run
    self._startUnderlyingMigration(time.time())
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 509, in _startUnderlyingMigration
    self._perform_with_conv_schedule(duri, muri)
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 587, in _perform_with_conv_schedule
    self._perform_migration(duri, muri)
  File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 529, in _perform_migration
    self._migration_flags)
  File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 98, in f
    ret = attr(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper
    ret = f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper
    return func(inst, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1779, in migrateToURI3
    if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self)
libvirtError: Unsafe migration: Migration without shared storage is unsafe

--- Additional comment from bipin on 2018-10-18 03:10:58 EDT ---

Logs @ http://rhsqe-repo.lab.eng.blr.redhat.com/sosreports/1640465/