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From Duncan Grant <duncan.gr...@cloudsoftcorp.com>
Subject Re: Softlayer max name length
Date Mon, 02 Feb 2015 14:24:32 GMT
PR here:
https://github.com/apache/incubator-brooklyn/pull/500

On 2 February 2015 at 14:19, Duncan Grant <duncan.grant@cloudsoftcorp.com>
wrote:

> After extensive testing it would appear that anything up to 55 chars seems
> to be fine.  Between 56-58 characters you could jclouds exceptions while
> provisioning.  From 59 chars up to around 80 ish you get a provisioned
> machine with no hostname and if you set the chars at higher than 100(ish)
> you get an error saying that the maximum length had been exceeded.
>
> I'll create a PR with a 55 character limit but I'd appreciate it if
> someone else could test this before it is merged.
>
> Sam,
>
> Thanks for the feedback - I don't keep my logs for long but I'll have a
> look the next time it happens.
>
> thanks
>
> Duncan
>
> On 2 February 2015 at 10:50, Sam Corbett <sam.corbett@cloudsoftcorp.com>
> wrote:
>
>> For issue with the Bind entity you might like to look for strings
>> matching these messages in your debug log:
>>
>> "Skipped update of {} when service state is {} and running is {}"
>> "Member {} of {} does not have an SSH location so will not be configured"
>>
>> It also logs "updating with entities: <list>" which will indicate whether
>> your missing entities were ever under consideration.
>>
>> Sam
>>
>>
>> On 02/02/2015 09:25, Duncan Grant wrote:
>>
>>> I agree, it's really annoying. The hostname resolves to "(none)" , which
>>> I
>>> assume means there isn't one set.
>>>
>>> I'll do some testing on the maximum size.
>>>
>>>
>>> Ambari does a test when it starts that the hostname resolves to the
>>> machines ip and refuses to start if it doesn't.  For softlayer I
>>> currently
>>> use the binddns entity to make the hostnames resolve, although I'm
>>> finding
>>> this a bit hit and miss - sometimes all my entities get configured
>>> properly
>>> and sometimes one or two won't have a dns entry - I assume this is a
>>> timing
>>> issue but I haven't looked into it at the moment.
>>>
>>>
>>> On 31 Jan 2015 23:55, "Aled Sage" <aled.sage@gmail.com> wrote:
>>>
>>>  Hi Duncan,
>>>>
>>>> That's annoying, and surprising! Is there no hostname set at all, or a
>>>> non-unique hostname?
>>>>
>>>> Do you know if the previous max length of 30 is the cut-off for hostname
>>>> being set on the VM? Maybe we could choose a number significantly bigger
>>>> than 30 but still not too big?
>>>>
>>>> For Ambari, does it need a hostname that can be resolved from other VMs
>>>> or
>>>> just a non-empty hostname?
>>>> (in some clouds for some apps, we ended up running a DNS server so that
>>>> hostnames would all resolve).
>>>>
>>>> Aled
>>>>
>>>>
>>>> On 30/01/2015 16:51, Duncan Grant wrote:
>>>>
>>>>  Without a maximum name length (see
>>>>> https://github.com/apache/incubator-brooklyn/pull/481) softlayer VMs
>>>>> are
>>>>> created without a hostname.
>>>>> Under these circumstances Ambari refuses to install.
>>>>>
>>>>> Should I implement something specific to the ambari entities so that
>>>>> they
>>>>> can work round this or do we need to find a more general fix?
>>>>>
>>>>> I'd really like to keep the long names as then I can tell this
>>>>> difference
>>>>> between my vms and those provisioned by Duncan.
>>>>>
>>>>> Regards
>>>>>
>>>>> Duncan
>>>>>
>>>>>
>>>>>
>>
>

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