> I had a problem like this when the umask was locked down. Setting the umask
> to 022 in the init script for nova-compute solved my problem.
I'm running from devstack setup - so I don't have an init-script. All the
processes run in a "screen" session.
Here is what I did :
1. Stopped nova-compute using Ctrl-C
2. Checked existing umask using "umask command" it was set to 0002
3. Updated umask using "umask 022" - checked that it was indeed updated - this
time "umask" command returned 0022
4. Started nova-compute as follows :
mandar@ubuntu-dev-mandar:/opt/stack/nova$ cd /opt/stack/nova && sg
libvirtd /opt/stack/nova/bin/nova-compute
5. Spawned an instance from Dashboard
Still getting same error.
-Mandar
On Tue, Apr 3, 2012 at 1:56 PM, Diego Parrilla Santamaría
<diego.parrilla.santama...@gmail.com> wrote:
> We use nfs backed instances a lot, and this problem normally has to do
> with wrong permission management in your filer and/or client.
>
> Check if not only root can write on the nfs share (specially libvirt user).
>
> Diego
> --
> Diego Parrilla
> CEO
> www.stackops.com | diego.parri...@stackops.com | +34 649 94 43 29
> | skype:diegoparrilla
>
>
>
>
> On Tue, Apr 3, 2012 at 6:43 PM, Mandar Vaze / मंदार वझे
> <mandarv...@gmail.com> wrote:
>>
>> I saw an old question posted here :
>> https://answers.launchpad.net/nova/+question/164689
>>
>> But I am not trying live migration.
>>
>> I have nfs mounted instances_path - so when I try to spawn an
>> instance I run into the above errors. Especially following :
>>
>> File "/usr/lib/python2.7/dist-packages/libvirt.py", line 372, in
>> createWithFlags
>> 40842 2012-04-03 05:42:27 TRACE nova.rpc.amqp if ret == -1: raise
>> libvirtError ('virDomainCreateWithFlags() failed', dom=self)
>> 40843 2012-04-03 05:42:27 TRACE nova.rpc.amqp libvirtError: internal
>> error Process exited while reading console log output: chardev:
>> opening backend "file" failed
>>
>> But as you can see below, several files are created in this folder,
>> so I am not sure if mine if permissions issue (Else none of the files
>> would get created) The problem is reported when libvirt tries to
>> write to console.log (File itself is created with correct permissions
>> - just that this is zero byte file)
>>
>> mandar@ubuntu-dev-mandar:/nfs_shared_instances_path/instance-00000005
>> $ ll total 10944 drwxrwxr-x 2 mandar libvirtd 4096 2012-04-03
>> 05:42 ./ drwxrwxrwx 4 root root 4096 2012-04-03 05:42 ../
>> -rw-rw---- 1 mandar libvirtd 0 2012-04-03 05:42 console.log
>> -rw-r--r-- 1 mandar libvirtd 6291968 2012-04-03 05:42 disk
>> -rw-rw-r-- 1 mandar libvirtd 4731440 2012-04-03 05:42 kernel
>> -rw-rw-r-- 1 mandar libvirtd 1067 2012-04-03 05:42 libvirt.xml
>> -rw-rw-r-- 1 mandar libvirtd 2254249 2012-04-03 05:42 ramdisk
>>
>> I'm suspecting :
>> https://bugs.launchpad.net/ubuntu/maverick/+source/libvirt/+bug/63269
>> 6 But I the above doesn't show itself in non-NFS setup
>>
>> Please suggest !!!
>>
>> -Mandar
>>
>>
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