Cloudstack-8885 added blocked connection listener for rabbitmqeventbus When rabbitmq connections are blocked(for example when rabbitmq is
server is out of space), all the cloudstack threads which does any
action and publishes to rabbitmq(for example login, launch vm etc.) are
all blocked.
Added a blocked connection listener to handle this and unblock the
parent thread.
also updated rabbitmq amqp client to 3.5.4 from 3.4.2
Testing:
I didnt find a way to write tests for this change as of now.
manually tested that login and other cloudstack apis work when the configured rabbitmq server goes out of space and publish actions are blocked.
* pr/857:
CLOUDSTACK-8885: added blocked connection listener for rabbitmqeventbus
updating rabbitmq amqp client to 3.5.4 from 3.4.2
Signed-off-by: Remi Bergsma <github@remi.nl>
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>
following changes
- introduced notion of event bus with publish, subscribe, unsubscribe
semantics
- a plug-in can implement the EventBus abstraction to provide event
bug to CloudStack
- A rabbitMQ based plug-in that can interact with AMQP servers to
provide message broker based event-bug
- stream lines, action events, usage events, alerts publishing in to
convineance classed which are also used to publish corresponding
event on to event bus
- introduced notion of state change event. On a state change, in the
state machine corrsponding to the resource, a state change event is
published on the event bug
- associated a state machined with Snapshot and Network objects
- Virtual Machine, Volume, Snaphost, Network object state changes wil
result in a state change event
