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https://blog.it-kb.ru/2018/08/19/ovirt-4-2-5-failed-to-force-select-host-as-the-spm-due-to-a-failure-to-stop-the-current-spm-with-uncleared-vdsm-tasks/
oVirt 4.2.5 - Ошибка передачи роли SPM между хостами - SPM due to a failure to stop the current SPM