[libvirt] [PATCH] Explicitly error on uri=qemu://system

Cole Robinson crobinso at redhat.com
Tue Apr 19 15:34:11 UTC 2016


On 04/19/2016 03:59 AM, Maxim Nestratov wrote:
> 19.04.2016 2:04, Cole Robinson пишет:
> 
>> It's a fairly common error that a user tries to connect to a URI
>> like qemu://system or qemu://session (missing a slash). This errors
>> like:
>>
>> $ virsh --connect qemu://session
>> error: failed to connect to the hypervisor
>> error: Unable to resolve address 'session' service '16514': No address
>> associated with hostname
>>
>> If you already know that the standard qemu URI has 3 slashes, that
>> error will make it obvious enough. But new user's may not get it.
>> There's even a RHEL support page explicitly mentioning it!:
>>
>> https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Troubleshooting-Common_libvirt_errors_and_troubleshooting.html
>>
>>
>> Catch this error early in libvirt.c virConnectOpen for qemu (and vbox
>> which has similar rules
> 
> Please, add 'vz' also as it suffers from the problem too. Though it doesn't
> support vz:///session it clearly says about it in the error message.

Sounds good, I'll send a v2

- Cole




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