Hi all,

A bug was found when live migrating KVM VMs among local storage with the IO
bursting. The issue is due to the VM's XML file being edited during the
migration process, removing the IO bursting configuration.

Example. A VM with a service offering limiting its IO would have a section
on its XML as the following:




*<iotune>    <write_iops_sec>500</write_iops_sec>
<write_iops_sec_max>5000</write_iops_sec_max>
<write_iops_sec_max_length>60</write_iops_sec_max_length></iotune>*

After live migrated, the VM loses the <iotune>...</iotune> section on its
XML, therefore, having no IO limitations.

Such an issue is critical and I am classifying this bug as a BLOCKER.
I will be submitting a PR fixing it soon. Therefore, next week we will spin
out an RC2 for voting.

Please let me know if there is any other issue to be addressed for RC2.

Regards,
Gabriel.

Em qui, 7 de fev de 2019 às 00:55, Gabriel Beims Bräscher <
gabrasc...@gmail.com> escreveu:

> Hi All,
>
> I've created the 4.12 RC1 (4.12.0.0-RC20190206T2333) release candidate,
> with the following artifacts up for a vote:
>
> Git Branch and Commit SH:
> https://github.com/apache/cloudstack/tree/master
>
> https://github.com/apache/cloudstack/commit/7c5eca94810c88a7e4a0849be1b1c23bf603e61b
> Commit: 7c5eca94810c88a7e4a0849be1b1c23bf603e61b
>
> Source release for 4.12.0.0-RC20190206T2333:
> https://dist.apache.org/repos/dist/dev/cloudstack/4.12.0.0/
>
> PGP release keys (signed using 25908455):
> https://dist.apache.org/repos/dist/release/cloudstack/KEYS
>
> Vote will be open for 3 business days (until 12th January).
>
> For sanity in tallying the vote, can PMC members please be sure to
> indicate "(binding)" with their vote?
>
> [ ] +1  approve
> [ ] +0  no opinion
> [ ] -1  disapprove (and reason why)
>
> Additional information:
>
> For users' convenience, packages from
> 7c5eca94810c88a7e4a0849be1b1c23bf603e61b are available in
> http://cloudstack.apt-get.eu/
> RC1 has been built for the following distros: Ubuntu 14.04, 16.04, and
> 18.04; CentOS6 and CentOS7.
>
> The system VM template from 4.11.2 [1] should work for this RC1. The
> release notes [2] still need to be updated.
>
> Best Regards,
> Gabriel.
>
> [1] http://download.cloudstack.org/systemvm/4.11/
> [2]
> http://docs.cloudstack.apache.org/projects/cloudstack-release-notes/en/latest/index.html
>

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