Saw those also. Haven’t gotten around to investigating those.
From: Tommy Sway <sz_cuitao@163.com>
Sent: Wednesday, September 15, 2021 11:14 PM
To: Stier, Matthew <Matthew.Stier@fujitsu.com>; 'Michal Gutowski' <michal.gutowski@oracle.com>; 'Vrgotic, Marko' <M.Vrgotic@activevideo.com>
Cc: users@ovirt.org
Subject: RE: [ovirt-users] Re: oVirt 4.3 DWH with Grafana
Thank you!
I tried it, and I can import the json after replace the 4.4 with 4.3, but still have some errors like this:
pq: column "count_threads_as_cores" does not exist
Object
status:400
statusText:"Bad Request"
data:Object
results:Object
message:"pq: column "count_threads_as_cores" does not exist"
message:"pq: column "count_threads_as_cores" does not exist"
Many of the other reports worked fine, with only a few similar errors.
Is this caused by version incompatibility?
After all, 4.4 in the original document was replaced with 4.3 before the import.
From:
Matthew.Stier@fujitsu.com <Matthew.Stier@fujitsu.com>
Sent: Wednesday, September 15, 2021 3:28 AM
To: Tommy Sway <sz_cuitao@163.com>; 'Michal Gutowski' <michal.gutowski@oracle.com>; 'Vrgotic, Marko' <M.Vrgotic@activevideo.com>
Cc: users@ovirt.org
Subject: RE: [ovirt-users] Re: oVirt 4.3 DWH with Grafana
The instructions to modify the json files are missing. (Using find and sed to change all instances of v4_4_ to v4_3_ before importing them into Grafana)
This is from an Oracle Blog on the doing this with OLVM 4.3 (which is basically a repackaged oVirt 4.3)
Build Grafana Dashboard for Oracle Linux Virtualization Manager 4.3
From: Tommy Sway <sz_cuitao@163.com>
Sent: Tuesday, September 14, 2021 3:01 AM
To: 'Michal Gutowski' <michal.gutowski@oracle.com>; 'Vrgotic, Marko' <M.Vrgotic@activevideo.com>
Cc: users@ovirt.org
Subject: [ovirt-users] Re: oVirt 4.3 DWH with Grafana
The oVirt version I'm using is 4.3, and I get an error when I import JSON.
pq: relation"v4_4_latest_configuration_datacenters" does not exist.
From:
users-bounces@ovirt.org <users-bounces@ovirt.org>
On Behalf Of Michal Gutowski
Sent: Wednesday, November 25, 2020 12:26 AM
To: Vrgotic, Marko <M.Vrgotic@activevideo.com>
Cc: users@ovirt.org
Subject: [ovirt-users] Re: oVirt 4.3 DWH with Grafana
Hi Marko,
I've tested this myself as I like playing with various Grafana use-cases and following
steps allow you to set up Grafana Monitoring for your oVirt 4.3 environment and re-use all Grafana Dashboards from latest oVirt 4.4 on a previous release.
1. Allowing Grafana to connect to oVirt DWH database (Data Warehouse)
Login to the oVirt engine 4.3 and create a user "grafana" with password "grafana" that will get a read-only access to the ovirt_engine_history database and will be able to use public
schema
# su - postgres -c 'scl enable rh-postgresql10 bash'
# psql -U postgres -c "CREATE ROLE grafana WITH LOGIN ENCRYPTED PASSWORD 'grafana';" -d ovirt_engine_history
# psql -U postgres -c "GRANT CONNECT ON DATABASE ovirt_engine_history TO grafana;"
# psql -U postgres -c "GRANT USAGE ON SCHEMA public TO grafana;" ovirt_engine_history
Generate the rest of the permissions that will be granted to the newly created user and save them to a file:
# psql -U postgres -c "SELECT 'GRANT SELECT ON ' || relname || ' TO grafana;' FROM pg_class JOIN pg_namespace ON pg_namespace.oid = pg_class.relnamespace WHERE nspname = 'public' AND
relkind IN ('r', 'v');" --pset=tuples_only=on ovirt_engine_history > grant.sql
Use the file you created in the previous step to grant permissions to the newly created user:
# psql -U postgres -f grant.sql ovirt_engine_history
Remove the file you used to grant permissions:
# rm grant.sql
Exit the postgres user shell by pressing Ctrl+d
Add the following lines for the newly created user to /var/opt/rh/rh-postgresql10/lib/pgsql/data/pg_hba.conf preceding the line beginning local all all
host ovirt_engine_history grafana 0.0.0.0/0 md5
host ovirt_engine_history grafana ::0/0 md5
Reload postgres service
# systemctl reload rh-postgresql10-postgresql
2. Installing Grafana
You can install Grafana directly on the oVirt Engine machine (this is how it's done in oVirt 4.4) or on a separate machine. Following steps shows how you can install Grafana on a Oracle
Linux 7 server. Note: Oracle provides Grafana in the OLCNE yum repository - you only need to install the repository definition package to pickup Grafana and it's dependencies.
# yum install oraclelinux-release-el7
# yum install oracle-olcne-release-el7
# yum-config-manager --enable ol7_optional_latest ol7_olcne11
# yum install grafana
# systemctl enable --now grafana-server
3. Adding oVirt DWH database as Data Source in Grafana
Login to Grafana (default port 3000) and navigate to Configuration -> DataSources and click on Add Data Source button.
Select PostgreSQL source and use the following settings (adjust the Host IP address to match your oVirt Engine IP but do not change the Name):
Name: oVirt DWH
Host: your-engine-ip-address:5432
user: grafana
pass: grafana
SSL mode: disable
4. Importing Dashboards from oVirt 4.4
Download Grafana Dashboards from oVirt 4.4 repository:
https://github.com/oVirt/ovirt-dwh/tree/master/packaging/conf/grafana-dashboards
You can now import them in Grafana by navigating to Create -> Import and clicking on Upload .json file or by simply pasting JSON content.
I've tested this on my OLVM/oVirt 4.3 and works perfectly well.
Have fun!
Michal
Michał Gutowski
Principal Solutions Engineer, EMEA
+48 665 222 979
Oracle Open Cloud Infrastructure Software - Linux
& Virtualization