GabrielBrascher opened a new pull request, #6509: URL: https://github.com/apache/cloudstack/pull/6509
### Description The new release [Libvirt-Java v0.5.3](https://gitlab.com/libvirt/libvirt-java/-/tags/v0.5.3) now supports `virDomainMigrate3`[[1]](https://gitlab.com/libvirt/libvirt-java/),[[2]](https://gitlab.com/libvirt/libvirt-java/-/commit/e45d3fb8bccab2d3048f902f0be74308afc923df), a powerful and flexible _domain migrate_ command in Libvirt. This command allows pointing just the Root volume to be migrated, saving a lot of compute resources, network bandwidth, and time. Likely, data disks hold TBs of data, while Root volumes hundreds of GBs. This allows saving crucial time, bandwidth, and processing. It can easily save several hours to offload a KVM machine depending on the amount of VMs to be migrated and data disks attached to the respective VMs. [[1] Libvirt-Java](https://gitlab.com/libvirt/libvirt-java/) [[2] commit that added `virtDomainMigrate3` into the Libvirt-Java](https://gitlab.com/libvirt/libvirt-java/-/commit/e45d3fb8bccab2d3048f902f0be74308afc923df) Fore reference, PR https://github.com/apache/cloudstack/pull/6472 added `libvirt-java v0.5.3` into CloudStack. <!--- Describe your changes in DETAIL - And how has behaviour functionally changed. --> <!-- For new features, provide link to FS, dev ML discussion etc. --> <!-- In case of bug fix, the expected and actual behaviours, steps to reproduce. --> <!-- When "Fixes: #<id>" is specified, the issue/PR will automatically be closed when this PR gets merged --> <!-- For addressing multiple issues/PRs, use multiple "Fixes: #<id>" --> <!-- Fixes: # --> <!--- ********************************************************************************* --> <!--- NOTE: AUTOMATATION USES THE DESCRIPTIONS TO SET LABELS AND PRODUCE DOCUMENTATION. --> <!--- PLEASE PUT AN 'X' in only **ONE** box --> <!--- ********************************************************************************* --> ### Types of changes - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] New feature (non-breaking change which adds functionality) - [ ] Bug fix (non-breaking change which fixes an issue) - [X] Enhancement (improves an existing feature and functionality) - [ ] Cleanup (Code refactoring and cleanup, that may add test cases) ### Feature/Enhancement Scale or Bug Severity #### Feature/Enhancement Scale - [X] Major - [ ] Minor ### Screenshots (if appropriate): ### How Has This Been Tested? <!-- Please describe in detail how you tested your changes. --> <!-- Include details of your testing environment, and the tests you ran to --> <!-- see how your change affects other areas of the code, etc. --> Tested migration of VM with local Root (50GB) + data-disk (100GB) 1. As an example, this is a scenario without this PR: ``` ~# virsh domjobinfo i-2-345-VM Job type: Unbounded Operation: Outgoing migration Time elapsed: 17063 ms Data processed: 2.938 GiB Data remaining: 147.065 GiB Data total: 150.004 GiB File processed: 2.938 MiB File remaining: 147.065 GiB File total: 150.004 GiB ``` **Data total 150.004 GiB** 2. When testing the same migration but with the changes of the PR: ``` ~# virsh domjobinfo i-2-345-VM Job type: Unbounded Operation: Outgoing migration Time elapsed: 10300 ms Data processed: 952.000 MiB Data remaining: 49.070 GiB Data total: 50.000 GiB File processed: 952.000 MiB File remaining: 49.070 GiB File total: 50.000 GiB ``` **Data total 50.000 GiB** <!-- Please read the [CONTRIBUTING](https://github.com/apache/cloudstack/blob/main/CONTRIBUTING.md) document --> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
