Nova doesn't support resize operation for instance booted from volume

[Yaguang Tang]

Nova doesn't support resize operation for instance booted from any volume backend.

[Guangya Liu (Jay Lau) (jay-lau-513)]

I think this one was fixed in https://bugs.launchpad.net/nova/+bug/1241337

[Guangya Liu (Jay Lau) (jay-lau-513)]

Yaguang, can you please append some stack trace for the issue? Does the error caused by rpc related to context? Thanks.

[Yaguang Tang (heut2008)]

from the current implementation of resize of libvirt. when instance flavor is changed, we use qemu-img to change the instance disk size. so it's obvious that instance booted from volume cann't be resized , there is no volume API to extend existed volume also.

[Guangya Liu (Jay Lau) (jay-lau-513)]

Thanks Yaguang. In my understanding, now resize should only care vcpu/memory but not disk, can you please append some command line and their output related to this bug?

[Matt Riedemann (mriedem)]

Need some recreate steps and logs of exception stack traces in a paste to pursue this.