Host-HA offers investigation, fencing and recovery mechanisms for host that for
any reason are malfunctioning. It uses Activity and Health checks to determine
current host state based on which it may degrade a host or try to recover it. On
failing to recover it, it may try to fence the host.
The core feature is implemented in a hypervisor agnostic way, with two separate
implementations of the driver/provider for Simulator and KVM hypervisors. The
framework also allows for implementation of other hypervisor specific provider
implementation in future.
The Host-HA provider implementation for KVM hypervisor uses the out-of-band
management sub-system to issue IPMI calls to reset (recover) or poweroff (fence)
a host.
The Host-HA provider implementation for Simulator provides a means of testing
and validating the core framework implementation.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Support access to a host’s out-of-band management interface (e.g. IPMI, iLO,
DRAC, etc.) to manage host power operations (on/off etc.) and querying current
power state in CloudStack.
Given the wide range of out-of-band management interfaces such as iLO and iDRA,
the service implementation allows for development of separate drivers as plugins.
This feature comes with a ipmitool based driver that uses the
ipmitool (http://linux.die.net/man/1/ipmitool) to communicate with any
out-of-band management interface that support IPMI 2.0.
This feature allows following common use-cases:
- Restarting stalled/failed hosts
- Powering off under-utilised hosts
- Powering on hosts for provisioning or to increase capacity
- Allowing system administrators to see the current power state of the host
For testing this feature `ipmisim` can be used:
https://pypi.python.org/pypi/ipmisim
FS:
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Out-of-band+Management+for+CloudStack
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Changes;
- Upgrades maven-war plugin to 4.5 (faster war packaging)
- Upgrade spring framework to latest minor release
- Upgrade ehcache, jasypt, httpclient, httpcore and other core dependencies
- Upgrade to latest ipv6 library, fix unit test NetUtilsTest
- httpcore and httpclient are sharing same version variable
- commons-httpclient is different that httpclient, the fix gives it a separate var
- Apidocs failed to generate and get stuck with new reflections version, for now
we will continue using 0.9.8
Newer dependencies can be listed using:
mvn versions:display-dependency-updates -Dnoredist -Dsimulator -P developer,systemvm
Testing;
- Tested using Maven 3.2.1
- Local noredist build with unit tests succeeds
- CloudStack mgmt server started, basic business layer tests work
- Observed 10-15% build time improvement using new maven-war plugin
Branch: bugfix/4.5-8011 (commits are squashed in favour of a linear history)
Pull request:
https://github.com/apache/cloudstack/pull/50
This closes#50
TravisCI build summary:
https://travis-ci.org/shapeblue/cloudstack/builds/42902172
- Build passes with unit tests
- Apidocs generates successfully
- Most integration tests pass, some fail due to timeout errors, second re-run
passes some of them
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit fac7bfc5d5)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Conflicts:
pom.xml
- Refactor tests:
- Upgrade tests to use jUnit4
- Add hamcrest dependency (contribution of by Laszio Hornyak)
- Break big tests in small unit tests
- Replace assertTrue/False with complex conditions by assertThat with
specific matchers
- Remove dead code:
- Private static method never called locally
- Add test for method that validates cidrs
Signed-off-by: Laszlo Hornyak <laszlo.hornyak@gmail.com>
Findings:
- 32 int shifted by an amount not in range -31..31:
The shifts by 32 bits don't actually have any effect on the value
(as shown by the tests)
- possible null pointer dereference
- repeated conditional test
- field only ever set to null
All other uses of the field were to check if it was null,
which it was, so it was removed
Other actions:
- Upgrade jUnit to version 4
- Add PowerMock dependency
Signed-off-by: Hugo Trippaers <htrippaers@schubergphilis.com>
We now require at least Java 7 to build and run CloudStack.
Both the DEB and RPM packaging now also require Java 7 during installation
of the packages.
Activate this profile in your IDE if you're having problems with checkstyle when switching branches. Please ensure that you at least compile once with checkstyle enabled before committing.
Rohit Yadav
Abhinandan Prateek
Sebastien Goasguen
Hugo Trippaers
Mike Tutkowski
Koushik Das
Damodar Reddy
Anthony Xu
Anshul Gangwar
Wido den Hollander
Alex Huang
edison
Daan Hoogland
miguelaferreira
Antonio Fornie