If hosted-engine deployment fails at some point we show message including a phrase like: "this system is not reliable". The issue is not really that the system is not reliable, the issue is that user should check the logs, fix accordingly or re-deploy from scratch.
Works for me on these components: rhvm-appliance-4.2-20180202.0.el7.noarch ovirt-hosted-engine-ha-2.2.4-1.el7ev.noarch ovirt-hosted-engine-setup-2.2.9-1.el7ev.noarch Linux 3.10.0-693.17.1.el7.x86_64 #1 SMP Sun Jan 14 10:36:03 EST 2018 x86_64 x86_64 x86_64 GNU/Linux [ ERROR ] Hosted Engine deployment failed: please check the logs for the issue, fix accordingly or re-deploy from scratch.
This bugzilla is included in oVirt 4.2.2 release, published on March 28th 2018. Since the problem described in this bug report should be resolved in oVirt 4.2.2 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.