openstack/nova
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OpenStack Compute (Nova)
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Sean Dague a859481b79 Bump prlimit cpu time for qemu from 2 to 8 
We've got user reported bugs that when opperating with slow NFS
backends with large (30+ GB) disk files, the prlimit of cpu_time 2 is
guessed to be the issue at hand because if folks hot patch a qemu-img
that runs before the prlimitted one, the prlimitted one succeeds.

This increases the allowed cpu timeout, as well as tweaking the error
message so that we return something more prescriptive when the
qemu-img command fails with prlimit abort.

The original bug (#1449062) the main mitigation concern here was a
carefully crafted image that gets qemu-img to generate > 1G of json,
and hence could be a node attack vector. cpu_time was never mentioned,
and I think was added originally as a belt and suspenders addition. As
such, bumping it to 8 seconds shouldn't impact our protection in any
real way.

Change-Id: I1f4549b787fd3b458e2c48a90bf80025987f08c4
Closes-Bug: #1646181
(cherry picked from commit b78b1f8ce3)
2016-12-12 12:48:03 +00:00
api-guide/source Merge "Change api-site to v2.1 format" 2016-09-08 15:57:36 +00:00
api-ref/source Add flavor extra_spec info link to api_ref 2016-11-16 02:20:20 +00:00
contrib Merge "changed quantum to neutron in vif-openstack" 2014-03-05 10:45:05 +00:00
devstack Add RC file for excluding tempest tests for LVM job 2016-05-17 10:25:45 -04:00
doc Update docs for serial console support 2016-11-09 09:46:26 -05:00
etc/nova Remove nova.network namespace from nova-config-generator.conf 2016-07-28 18:14:12 -04:00
nova Bump prlimit cpu time for qemu from 2 to 8 2016-12-12 12:48:03 +00:00
plugins/xenserver plugins/xenserver: Resolve PEP8 issues 2016-08-15 18:11:49 +01:00
releasenotes Add release note for bug 1635446 2016-10-31 11:54:30 -04:00
tools Remove locals() for formatting strings. 2016-08-22 17:32:38 +07:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:34:39 +00:00
.gitignore Ignore generated merged policy files 2016-08-31 08:54:25 -07:00
.gitreview Update .gitreview for stable/newton 2016-09-16 09:59:46 +02:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.testr.conf Add initial framing of placement API 2016-07-29 10:31:36 +00:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bandit.yaml Add bandit for security static analysis testing 2015-07-02 09:17:48 -07:00
bindep.txt List system dependencies for running common tests 2016-08-24 06:49:32 +02:00
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:37 +00:00
HACKING.rst Remove hacking check [N347] for config options. 2016-08-11 14:23:21 +02:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Add a maintainers file 2015-05-23 03:22:07 +10:00
README.rst Refresh README and its docs links 2016-08-08 10:26:08 +01:00
requirements.txt Updated from global requirements 2016-09-22 21:15:03 +00:00
run_tests.sh Add description on how to run ./run_test.sh -8 2016-01-11 13:17:04 +00:00
setup.cfg Merge "Adds nova-policy-check cmd" 2016-09-01 17:56:56 +00:00
setup.py Updated from global requirements 2015-09-17 16:41:48 +00:00
test-requirements.txt Updated from global requirements 2016-09-03 01:59:32 +00:00
tests-py3.txt Remove nova/api/validator.py 2016-08-16 09:52:29 +00:00
tox.ini Update UPPER_CONSTRAINTS_FILE for stable/newton 2016-09-16 09:59:58 +02:00

README.rst

OpenStack Nova

OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer and OpenStack Ironic.

OpenStack Nova is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file.

API

To learn how to use Nova's API, consult the documentation available online at:

http://developer.openstack.org/api-guide/compute/ http://developer.openstack.org/api-ref/compute/

For more information on OpenStack APIs, SDKs and CLIs, please see:

http://www.openstack.org/appdev/ http://developer.openstack.org/

Operators

To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:

http://docs.openstack.org

For information about the different compute (hypervisor) drivers supported by Nova, please read:

http://docs.openstack.org/developer/nova/feature_classification.html

In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:

http://bugs.launchpad.net/nova

Developers

For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.

Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.

Further developer focused documentation is available at:

http://docs.openstack.org/developer/nova/