HP Matrix Operating Environment 7.3 Release Notes

Deleting a large number of virtual machine instances from Matrix infrastructure orchestration
occasionally times out
Attempting to continuously delete a large number (more than 25) of VM instances from Matrix
infrastructure orchestration may not succeed. When this occurs, you may see an error in IO similar
to the following:
ERROR: Reached TIMEOUT attempting to delete Nova instance with serverId:
xxxx-xxxx Failed to stop server. Instance in task_state deleting. Cannot
stop while the instance is in this state.
This error occurs when the VM host on which the instances were running times out and is
disconnected from the appliance.
Suggested action
1. Restart services on the VM host (compute node) by opening an SSH connection to the host
and entering the following command from the command line:
service openstack-nova-compute restart
2. Retry the delete instance operation from Matrix infrastructure orchestration.
Incorrect hyperlink message displays when filtering or searching returns no results
When filtering or searching for resources on a Matrix KVM Admin Console screen and no results
are found, an incorrect message displays with a hyperlink to create resources or take corrective
action. The link is unnecessary because there are no resources to display based on the filter options.
Suggested action
Ignore the message. Clear the search text and search for a known string that produces results, for
example source.
Internet Explorer 8 displays “Out of Memory popup if the Matrix KVM Admin Console Activity
page is left open for an extended period of time
If your browser is Internet Explorer 8, you may see an “Out of Memory” popup if the Matrix KVM
Admin Console Activity page is kept open for an extended period of time. The amount of time
depends on the appliance memory allocation and load on the server, but in general this error can
occur after approximately six days with 25 notifications displayed, or after 30 hours with 125
notifications displayed. If this error occurs, the web browser may become sluggish or unresponsive
to user input.
Suggested actions
1. Reload the page by pressing CTRL-F5.
2. Restart the browser.
3. To prevent the problem from reoccurring, upgrade to a newer browser version.
Deployed instance does not boot and an error appears
A VM instance did not boot, even though the Hosts screen appears to show sufficient available
resources. The following error appears:
No available host can provide the specified resources
The Hosts screen displays the percentage of resources in use and the total amount of resources.
However, the actual available resources of a host are calculated by subtracting allocated resources
(the VM instances already provisioned to a host) from the capacity of the host.
If one or more VM instances in a host are not consuming all allocated resources or are powered
down, the host appears to have a high percentage of free resources, but the available resources
are in fact already allocated to the powered down instances.
Matrix KVM Private Cloud 49