All, On the link given below vish asked if I could “chown” the files in that folder – turns out I couldn’t. I’ve answered his query on the link below – but repeating the updates here for larger audience (Unfortunately, I have revived a question that is marked as “solved” – so not many people may refer/respond to the link)
Vish : > 1) is it possible to chown files on your nfs mount? Not sure whom should I give the ownership to ? As the dir listing shows above, the files are created with correct owner/group settings. These files were created by nova-compute process. I "touch"ed a file for testing - which was created with "mandar:mandar" - I tried changing the ownership, but I keep getting "invalid" argument - not sure if that is what you were referring to .. mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ touch x mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ ll total 16 drwxrwxrwx 4 root root 4096 2012-04-04 03:46 ./ drwxr-xr-x 15 mandar mandar 4096 2012-04-04 03:39 ../ drwxrwxr-x 2 mandar libvirtd 4096 2012-04-04 02:18 _base/ drwxr-xr-x 2 mandar libvirtd 4096 2012-04-04 03:41 instance-0000000f/ -rw-rw-r-- 1 mandar mandar 0 2012-04-04 03:46 x mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ chown root x chown: changing ownership of `x': Invalid argument mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ ll total 16 drwxrwxrwx 4 root root 4096 2012-04-04 03:46 ./ drwxr-xr-x 15 mandar mandar 4096 2012-04-04 03:39 ../ drwxrwxr-x 2 mandar libvirtd 4096 2012-04-04 02:18 _base/ drwxr-xr-x 2 mandar libvirtd 4096 2012-04-04 03:41 instance-0000000f/ -rw-rw-r-- 1 mandar mandar 0 2012-04-04 03:46 x mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ sudo chown root x chown: changing ownership of `x': Invalid argument mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ chgrp libvirtd x chgrp: changing group of `x': Invalid argument mandar@ubuntu-dev-mandar:~/nfs_shared_instances_path$ sudo chgrp libvirtd x chgrp: changing group of `x': Invalid argument I also debugged the "_chown_console_log_for_instance" in "nova/virt/libvirt/connection.py" and with breakpoint before "if os.path.exists(console_log)" - I touched "console.log" at the appropriate path from another terminal. Over there also I am getting the same error: 2012-04-04 03:56:55 TRACE nova.rpc.amqp Command: sudo /usr/local/bin/nova-rootwrap chown 1000 /home/mandar/nfs_shared_instances_path/instance-00000010/console.log 2012-04-04 03:56:55 TRACE nova.rpc.amqp Exit code: 1 2012-04-04 03:56:55 TRACE nova.rpc.amqp Stdout: '' 2012-04-04 03:56:55 TRACE nova.rpc.amqp Stderr: "/bin/chown: changing ownership of `/home/mandar/nfs_shared_instances_path/instance-00000010/console.log': Invalid argument\n" So what is the fix for this ? -Mandar From: openstack-bounces+mandar.vaze=vertex.co...@lists.launchpad.net [mailto:openstack-bounces+mandar.vaze=vertex.co...@lists.launchpad.net] On Behalf Of Mandar Vaze / ????? ??? Sent: Tuesday, April 03, 2012 10:14 PM To: openstack@lists.launchpad.net Subject: [Openstack] Instance fails to spawn when instance_path is nfs mounted 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/632696 But I the above doesn't show itself in non-NFS setup Please suggest !!! -Mandar ______________________________________________________________________ Disclaimer:This email and any attachments are sent in strictest confidence for the sole use of the addressee and may contain legally privileged, confidential, and proprietary data. If you are not the intended recipient, please advise the sender by replying promptly to this email and then delete and destroy this email and any attachments without any further use, copying or forwarding
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