[Engine-devel] hosted engine in 3.4

[Jiri Moskovcak]

On 03/14/2014 10:17 AM, Sandro Bonazzola wrote:
> Il 14/03/2014 10:13, Martin Sivak ha scritto:
>> Hi,
>>
>>>>> 1. You need to have some MAC address with static ip and FQDN, otherwise
>>>>> you have to change /etc/hosts at least for the first part of the setup
>>
>> I believe you were there when we were discussing this with pstehlik :)
>>
>> Btw in this case you have to change /etc/hosts on all hosts and inside the
>> engine VM.
>>
>>>>> 2. When the VM install is complete I would expect the setup wizard to
>>>>> install the engine to the VM automatically - which at least in my case -
>>>>> doesn't happen
>>
>> I also proposed kickstart based setup to Sandro. You would give a repo to setup
>> and it would download the kernel/initrd from it [1] and create a kickstart with
>> the right root password, engine setup and so on..
>
> Ohad is preparing an OVA for allowing a quick setup.
> But feel free to open a RFE for the kickstart solution as well.
>
>>
>> [1] http://ftp.linux.cz/pub/linux/fedora/linux/releases/20/Fedora/x86_64/os/images/pxeboot/
>>
>>>>> 1. once I managed to install the engine to the vm it tried to add the
>>>>> host it was running on to the engine and it failed with a message "Host
>>>>> compatibility version doesn't match the cluster compatibility version",
>>>>> and then it marked the host as non operational which killed the vm with
>>>>> the engine, so the engine actually committed suicide…
>>
>> Check your VDSM version. Especially the content of /usr/share/vdsm/dsaversion.py
>> file. There are couple of lists specifying the cluster and engine versions that
>> the VDSM supports.
>>
>> If you use 3.4 engine it needs 3.4 VDSM as well.. and the prerelease repo is not
>> enabled by default.
>>
>>>>> mistake I think the engine should be a bit more clever and not kill itself
>>>>
>>
>> I think it is the VDSM that does the actual killing :)
>>
>> But overall I agree, the setup is too fragile and I encountered all of the issues
>> when installing hosted engine for the first time too.
>
> Please be sure to have a BZ for each issue you encountered.
> We'll try to address them.
>

Sure, I'm about to create them, btw, I'm a new developer assigned to the 
hosted-engine so I'll be probably fixing those issues with you :)

--Jirka

>
>>
>> --
>> Martin Sivák
>> msivak at redhat.com
>> Red Hat Czech
>> RHEV-M SLA / Brno, CZ
>>
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>
>