Mitigating Common CloudStack Instance Deployment Failures

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Mitigating Common
CloudStack Instance
Deployment Failures
Jithin Raju

About Me
• Cloud Architect at ShapeBlue
• Involved with CloudStack/ Forks
since 2013.
• Citrix > Accelerite > ShapeBlue

Agenda
Common CloudStack Instance
Deployment Failures
Q&A
Discussion

Insufficient
Capacity
Capacity is fully utilized
Add
Add more Capacity
(Compute/Storage).
Delete
Delete unused
instances a...

Insufficient
Address Capacity
• Add new public IP
address range/subnet.
Add
• Resource limits.
Resource
• Plan capacity we...

Unable to allocate
vnet Extend the VLAN range
Resource Limits on Networks
Plan capacity well.
Guest VLAN range in the zone...

Tag Mismatch Review
Review the
configuration.
Add
Add the tag to
more hosts/
storage.
Avoid
Avoid using tags
if not requir...

Overconfidence
with over
provisioning Use realistic values.
Thorough testing.
Leave headroom.
Higher used capacity compare...

Deployment
options
Avoid using
combinations
which can’t
be deployed.
Reduce the
choices
Conflicting choices

No destination found for a deployment
for VM instance Ensure
Host/Hardware
Health.
Ensure free
capacity.
Hypervisor
monito...

Capability
Mismatch
Revise the compute offerings
along with hardware changes.
Review compute offerings.
Unable to find hos...

Resource Limits
Increase the limit. Free up resources.
Resource limit on account or domain for
instance, volumes, primary ...

Null Pointer
Exceptions
Avoid DB
modifications.
Apply fixes. Report/ Fix
bugs.
Manual DB changes
Cloudstack bugs.

Database Errors Monitor Monitor the server.
Connectivity
Ensure good
connectivity to
Database.
MySQL
Use tested and
suppor...

Instance not
booting
Fix the guest OS
mapping.
Use supported
controller types.
Fix the
template.
Incorrect Guest OS mappin...

Timeouts
Update timeouts to
match the environment
and use cases.
Identify the sub-task
causing the delay.
Review underlyin...

Issues with VR
Inspect the VR. Restart the network
with clean-up.
Fix / Report bug.
Unresponsive VR.
Filesystem filled up....

Q&A
DISCUSSION

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