Open Stack

The three new compute nodes that you added are empty, so most likely
the new instances are scheduled to those three (3 attempts) and
something goes wrong.

with admin rights do:
openstack server show uuid

this should give you the info about the compute node where the
instance was scheduled. Check the nova-compute.log of that one, you
should find some debug info.

Saverio


2017-02-16 8:40 GMT+01:00 Anwar Durrani <durrani.anwar at gmail.com>:
> Hi team,
>
> I am running Kilo setup with 1 Controller and 7 nova nodes, i have added 3
> additional nova nodes, where i can see, in system information under compute
> nodes that nodes are up and running, but when i am trying to launch instance
> then it is prompting below error :
>
> Error: Failed to perform requested operation on instance "test", the
> instance has an error status: Please try again later [Error: No valid host
> was found. Exceeded max scheduling attempts 3 for instance
> 969e71d4-845a-40da-be2a-d4f2619cbc68. Last exception: [u'Traceback (most
> recent call last):\n', u' File
> "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2248, in
> _do].
>
>
> Thanks in advance.
>
>
> --
> Thanks & regards,
> Anwar M. Durrani
> +91-9923205011
>
>
>
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