RHBA-2017:1000 - Bug Fix Advisory

Topic

Updated ovirt-host-deploy packages that fix several bugs and add various enhancements are now available.

Description

The ovirt-host-deploy packages provide deployment implementation required for Red Hat Virtualization Manager to deploy new hosts. The packages contain a Python library and Java library used by the Red Hat Virtualization Manager package. These libraries are the core deployment logic.

Changes to the ovirt-host-deploy component:

• Previously, Red Hat Virtualization Manager couldn't install legacy RHEV-H when in 3.6 Compatibility Mode. This is now fixed. (BZ#1412906)
• Previously, host-deploy added a udev rule to change the default I/O scheduler to 'deadline', because the then-default scheduler was not adequate. This rule used 'RUN' to run a command to set the default.

Some storage vendors have recommendations to set other specific schedulers for their devices, some of which use 'ATTR', a sysfs attribute. However, udevadm scans all the files in /etc/udev/rules.d, then first sets all the ATTR configurations, and then runs the RUN commands, making it impossible to follow the storage vendors' recommendations successfully, as our rule would override them.
Now, with RHEL 7, the default is 'deadline', so the udev rule is not needed anymore. host-deploy was changed to not add this rule, and to remove the conf file it added in the past, if found. It is now possible to successfully set I/O schedulers as needed using ATTR. (BZ#1381219)

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/2974891

Affected Products

• Red Hat Virtualization 4.1 x86_64
• Red Hat Virtualization 4 for RHEL 7 x86_64
• Red Hat Virtualization for IBM Power LE 4 for RHEL 7 ppc64le

Fixes

• BZ - 1379403 - Build ovirt-host-deploy for RHEL 7 RHEV 4.1
• BZ - 1381219 - Remove udev rule for deadline elevator (from host deploy) - not needed in EL7 hosts.
• BZ - 1412906 - ovirt-engine can't install legacy RHV-H in 3.6 Compatibility Mode

CVEs

(none)

References

(none)