[ovirt-devel] Re: Recovering from power failure

On Tue, Feb 12, 2019, 12:23 Sandro Bonazzola <sbonazzo(a)redhat.com wrote: > Moving the discussion to devel list on this scenario. > > Il giorno mar 12 feb 2019 alle ore 11:16 Hetz Ben Hamo <hetz(a)hetz.biz&gt; > ha scritto: > >> Hi, >> >> Well, there is a severe bug that I complained about it on 4.2 (or 4.1? I >> don't remember) and it's regarding "yanking the power cable". >> Basically I'm performing a simple test: kill all hosts immediately to >> simulate a power loss without UPS. >> >> For this test I have 2 nodes, and 4 storage domains: hosted_storage >> (that was setup during the HE installation), 1 iSCSI domain, 1 NAS domain >> and 1 ISO domain. >> >> After all the nodes loose power, I power them on and the following >> procedure happens: >> 1. The node with HE finishes booting, and it takes few minutes until the >> HE is up. >> 2. When the HE is up, all the storage domains comes back to life as >> online and VM's with high availability starting to boot. >> 3. Few minutes later, *all* (with the exception of hosted_storage) >> storage domains are going down >> 4. After about 5 minutes, all the other storage domains which went down, >> are coming up, but by then, and VM's without high availability that are not >> hosted on hosted_storage remains down, you'll need to power them manually >> back. >> >> This whole procedure takes about 15-25 minutes after booting the nodes, >> and this issue is always repeatable, just kill the power to the nodes, >> power them up again and see for yourself. >> >> The solution would be to change the code and if a storage domain is up - *leave >> it up*, skip the check. >> >>

> Tal, Nir, what do you think about this? > This is not a severe bug. We will look at when we have time. > > > > >> Thanks >> >> >> On Tue, Feb 12, 2019 at 11:56 AM Sandro Bonazzola <sbonazzo(a)redhat.com&gt; >> wrote: >> >>> Hi, >>> We are planning to release the first candidate of 4.3.1 on February >>> 20th[1] and the final release on February 26th. >>> Please join us testing this release candidate right after it will be >>> announced! >>> We are going to coordinate the testing effort with a public Trello >>> board at https://trello.com/b/5ZNJgPC3 >>> You'll find instructions on how to use the board there. >>> >>> If you have an environment dedicated to testing, remember you can setup >>> a few VMs and test the deployment with nested virtualization. >>> To ease the setup of such environment you can use Lago ( >>> https://github.com/lago-project) >>> >>> The oVirt team will monitor the Trello board, the #ovirt IRC channel on >>> irc.oftc.net server and the users(a)ovirt.org mailing list to assist >>> with the testing. >>> >>> [1] >>> https://www.ovirt.org/develop/release-management/releases/4.3.z/release-m... >>> >>> -- >>> >>> SANDRO BONAZZOLA >>> >>> MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV >>> >>> Red Hat EMEA <https://www.redhat.com/> >>> >>> sbonazzo(a)redhat.com >>> <https://red.ht/sig> >>> _______________________________________________ >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>> oVirt Code of Conduct: >>> https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: >>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/URIGV3LPTE2... >>> >> > > -- > > SANDRO BONAZZOLA > > MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV > > Red Hat EMEA <https://www.redhat.com/> > > sbonazzo(a)redhat.com > <https://red.ht/sig> > _______________________________________________ Devel mailing list -- devel(a)ovirt.org To unsubscribe send an email to devel-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/devel@ovirt.org/message/CASCUAA54E4...