On 05/17/2018 01:50 PM, Glen Baars wrote: > Hello Dev, > > I have recently upgraded our cloudstack environment to 4.11. Mostly all has > been smooth. ( this environment is legacy from cloud.com days! ) > > There are some issues that I have run into: > > 1.Can't install any VMs from ISO ( I have seen this in the list previously > but can't find a bug report for it ) If further reports or debug will help I > can assist. It is easy to reproduce. > 2.When a VM is created from a template, the RBD features are lost. More info > below. > > Example of VM volume from template: - > > user@NAS-AUBUN-RK3-CEPH01:~# rbd info > AUBUN-KVM-CLUSTER01-SSD/feeb52ec-f111-4a0d-9785-23aadd7650a5 > > rbd image 'feeb52ec-f111-4a0d-9785-23aadd7650a5': > size 150 GB in 38400 objects > order 22 (4096 kB objects) > block_name_prefix: rbd_data.142926a5ee64 > format: 2 > features: layering > flags: > create_timestamp: Fri Apr 27 12:46:21 2018 > parent: > AUBUN-KVM-CLUSTER01-SSD/d7dcd9e4-ed55-44ae-9a71-52c9307e53b4@cloudstack-base-snap > overlap: 150 GB > > Note the features are not the same as the parent : - > > user@NAS-AUBUN-RK3-CEPH01:~# rbd info > AUBUN-KVM-CLUSTER01-SSD/d7dcd9e4-ed55-44ae-9a71-52c9307e53b4 > rbd image 'd7dcd9e4-ed55-44ae-9a71-52c9307e53b4': > size 150 GB in 38400 objects > order 22 (4096 kB objects) > block_name_prefix: rbd_data.141d274b0dc51 > format: 2 > features: layering, exclusive-lock, object-map, fast-diff, > deep-flatten > flags: > create_timestamp: Fri Apr 27 12:37:05 2018 > > > If you manually clone the volume the expected features are retained. We are > running the latest Ceph version, KVM hosts on Ubuntu 16.04 with the latest > Luminous qemu-img. >
How do you clone the volume manually? I assume with the rbd tool? Because this is where Java/CloudStack clones the image: https://github.com/apache/cloudstack/blob/master/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java#L957 private int rbdFeatures = (1 << 0); /* Feature 1<<0 means layering in RBD format 2 */ rbd.clone(template.getName(), rbdTemplateSnapName, io, disk.getName(), rbdFeatures, rbdOrder); So it's on purpose and this has a historical reason which I can't thin of anymore. We can probably update this to include exclusive-lock, object-map, fast-diff and deep-flatten. Or completely skip it and have RBD figure it out. Don't know anymore why this code is in there. But if this a real probably that you don't have those features? Wido > Kind regards, > Glen Baars > > This e-mail is intended solely for the benefit of the addressee(s) and any > other named recipient. It is confidential and may contain legally privileged > or confidential information. If you are not the recipient, any use, > distribution, disclosure or copying of this e-mail is prohibited. The > confidentiality and legal privilege attached to this communication is not > waived or lost by reason of the mistaken transmission or delivery to you. If > you have received this e-mail in error, please notify us immediately. >
