Sometimes the hostStats object of the agents becomes null in the management server. It is a rare situation, and we haven't found the root cause yet, but it occurs occasionally in our CloudStack deployments with many hosts.
The hostStat is null, even though the agent is UP and hosting multiple VMs. It is possible to access the VM consoles and execute tasks on them.
This pull request doesn't address the issue directly; rather it displays those hosts in Prometheus so we can restart the agent and get the necessary information.
When a host is not tagged, its maintenance status is reported in the
cloudstack_hosts_total metric: maintenance_enabled is OFFLINE,
maintenance_disabled is ONLINE.
When a host is tagged, its maintenance status is now also verified to
ensure consistent behaviour.
In prometheus exporter, maintenance status for cloudstack_hosts_total_by_tag is not checked. While it is checked for cloudstack_hosts_total metric.
Classified by_tag or not, metrics should be the same.
Fixes: #7470
* Export count of total/up/down hosts by tags
* Export count of vms by state and host tag.
* Add host tags to host cpu/cores/memory usage in Prometheus exporter
* Cloudstack Prometheus exporter: Add allocated capacity group by host tag.
* Show count of Active domains on grafana.
* Show count of Active accounts and vms by size on grafana
* Use prepared statement to query database for a number of VM who use a specific tag.
* Extract repeated codes to new methods.
If the resource state of hypervisor in "Maintenance" then it
should be considered as offline even though the agent state
is "Up". Since its in maintenance mode, it cant be used to
allocate VM's and hence can't be considered towards resource
allocation
We should have the metrics for the hosts which are dedicated to certain domains.
We should also be able to see cpu/memory/storage currently used per domain
> How Has This Been Tested?
Enable prometheus server
Add 127.0.0.1 as allowed Ip so that you can fetch metrics from prometheus
Now fetch the endpoint
# http http://127.0.0.1:9595/metrics | grep cloudstack_host_is_dedicated
cloudstack_host_is_dedicated{zone="mgt122-10",hostname="node11",ip="10.13.122.11"} 1
# http http://127.0.0.1:9595/metrics | grep cloudstack_host_dedicated_to_account
cloudstack_host_dedicated_to_account{zone="mgt122-10",hostname="node11",ip="10.13.122.11"} 1
This feature enables the following:
Balanced migration of data objects from source Image store to destination Image store(s)
Complete migration of data
setting an image store to read-only
viewing download progress of templates across all data stores
Related Primate PR: apache/cloudstack-primate#326
Remove maven standard module (which only a few were using) and get ride of maven customization for the projects structure.
- moved all directories to src/main/java, src/main/resources, src/main/scripts, src/test/java, src/test/resources
- grep scan to search for src/com and src/org left over
- grep for <project>/scripts to fix pom.xml configuration
- remove custom <build> configuration in pom.xml
Signed-off-by: Marc-Aurèle Brothier <m@brothier.org>
Sina Kashipazha
João Jandre
Daan Hoogland
Ben
Rohit Yadav
Suresh Kumar Anaparti
John Bampton
Vladimir Dombrovski
Daniel Augusto Veronezi Salvador
Wei Zhou
Rakesh
Pearl Dsilva
Filippo Projetto
Marc-Aurèle Brothier