I need to use Grafana for simple db queries to show some basic ERP data.
My MS SQL query is very simple:
select "Production Line", "Pallets" from vLiveProduction order by Plant, "Production Line"
The data are pretty straight forward and they display in a table.
I cant make them display in a graph or bar or any plugin i tried to.
I must be doing something fundamentally wrong here but i cant see what. Any help?
I AM choosing series in graph but nothing changes. I cant find a way to tell Grafana which column is the series and which the value… Tried by naming my columns metric and value but still no luck.
I would use the bar guage panel in Grafana > 6.2.
You can change the config so that Display = All Values. which i think will give you what you want! Plus the Retro LCD setting under Mode looks cool :)
Tom
Related
I created a SQL query that counts the number of servers running test jobs on a specific Jenkins server at a specified time. I'm trying to chart it on Grafana but for some reason, it's displaying the value as NaN.
The data source is a MySQL server. I'm running Grafana version 8.1.5. I went on the server (phpMyAdmin) to check the results of the query and I can see numbers.
When we look at the grafana chart/panel, the bars on the chart look like it matches the values, but the chart shows NaN instead of the value.
What setting do I need to change so that it can print the numeric value on the chart instead of displaying NaN?
EDIT: Looks like I didn't include enough info to my question.
Here's the query that's used, although, I don't know how feasible it is to include the tables with data to demo the issue:
SELECT COUNT(DISTINCT(tb_name)) as val, jenkins FROM (
SELECT
hw.collected_date AS mytime,
hw.jenkins AS jenkins,
hw.name AS tb_name
FROM hw_report as hw LEFT OUTER JOIN jenkins_owner jo
ON hw.jenkins = jo.jenkins
WHERE jo.org IN ('Enterprise Readiness')) as y
WHERE mytime = '2021-12-03 00:00:00'
GROUP BY jenkins
HAVING count(distinct(tb_name)) > '0'
Here are screenshots of my panel. The "Show values" setting is set to "Always", which II assume should show the values.
One thing I noticed is when I hover over the bar, it shows
COUNT(DISTINCT(name_cnt))
instead of a numeric value. Not sure if this is indicative of anything. I checked other charts in the dashboard that someone created and their bars either have a numeric value or it's just a column name (like name_cnt)
Sorry I'm a noob and didn't know what to configure, look up, or mention in my question. I accidentally came across the answer.
So it seems like I need to select something under the "Transform" tab for the panel. Calculation needs to be "Total" instead of "Count" and I need to hide the fields specified in my SQL query and show the "Total"
I use grafana to plot timeseries data. In a timeseries plot i want to add a constant line which comes from a monitoring level. The value of that level is dynamic (from a postgres database) the timeseries come from a ifluxdb Datasource.
The monitoring level have no timestamp. The result should look like this:
I have searched quite a while how to do this, but not found a good explanation.
You can now add thresholds (bottom of the edit screen).
Each threshold can be represented as a solid line and/or region with individual color
Another way to do it in a dirty way is to create panel with a mixed data source.
Create your variable in grafana - it can be a query, constant or custom. Just remember to keep it a single floating point.
Add your original query and add the prometheus data source to query your variable.
${net_ordered_storage}
You will have to play a little bit with the number of data points displayed (query options>max data points) and minimum step of data point in prometheus query to make grafana connect dots.
Green horizontal line from variable
To draw a line like that you have to "fake" a timeseries. (thresholds don't work since they can not be dynamic as far as I know)
First thing to keep in mind is that grafana needs timestamp to plot it, for this reason the global variables ${__to} and ${__from} come in handy.
Then, to draw a line, grafana needs at least two points. ([t0, t1][y0, y1])
So this is the sql (postgre) query that lead to the desired result:
SELECT
${__from} AS time,
level_1,
FROM my_table where display_name = '${my_grafana_var:raw}'
union all
SELECT
${__to} AS time,
level_1,
FROM my_table where display_name = '${my_grafana_var:raw}';
It is possible to add dynamic thresholds using the Config from query option.
Add a new query below your standard metric query. This will likely be called B.
Here you query the static reference value.
Eg SELECT expected_number_of_widgets FROM baseline
Open Transformation tab
Find Configuration from Query results
Choose Config query = B
At the dropdown for expected_number_of_widgets, choose Use as: Threshold1.
In the right panel, under Thresholds, make sure Show Tresholds is enabled and remove the default threshold of 80.
For more details, see https://grafana.com/docs/grafana/latest/panels-visualizations/query-transform-data/transform-data/#config-from-query-results
I will start of by saying that I'm new to Grafana.
I have a database table that is being updated externally that has say 15 columns of information on a given set of servers. I'm just trying to display the server name and current status and change the color of the row based on that status (Norm, Alert, Down) ... ideally those would be links to a detail page.
I tried the included table display which looks like it should handle it but the coloring options don't seem to work based on plain dumb text in a column or it would be perfect because it says it will color by row and includes the ability to make each row a link essentially.
grafana screen shot
I have tried with and without quotes in the Threshold values. It says in the hover help you can use comma separated values but does not seem to work for me. (I am thinking it's my config or usage btw)
Every other plugin I can find that says it wants to do this errors out when I tell it I have a table of data and not some live feed.
I'm using Grafana with Prometheus and I'd like to build a query that depends on the selected period of time selected in the upper right corner of the screen.
Is there any variable (or something like that) to use in the query field?
In other words, If I select 24hs I'd like to use that data in the query.
There are two ways that I know:
You can use the $__interval variable like this:
increase(http_requests_total[$__interval])
There is a drawback that the $__interval variable's value is adjusted by resolution of the graph, but this may also be helpful in some situations.
This approach should fit your case better:
Go to Dashboard's Templating settings, create new variable with the type of Interval. Enable "Auto Option", adjust "Step count" to be equal 1. Then ensure that the "auto" is selected in corresponding drop-down list at the top of the dashboard.
Let's assume you name it timeRange, then the query will look like this:
increase(http_requests_total[$timeRange])
This variable will not be adjusted by graph resolution and if you select "Last 10 hours" its value will be 10h.
If you are looking at using prometheus as data source, $__range supports your dashboard time is great.
increase(gin_total_requests[$__range])
Why create your variable when you can use inbuilt Global variable.
I have added links to documentations to back up my answer
Grafana 5.3+
count_over_time({job="gerrit-sshd"}[$__interval])
It works for me and what's more, you should set Max data point as 1 ,in query option.
Then the $__interval is the same Time-Range from the Panel on Grafana top right corner.
Attached image shows the graph in dashboard which has two graph overlapped.
I want to put a drop down option to it so that I can select one at a time.
Sometimes I have more than 10 samples or graph in one so I would like to go with this approach or something similar option.
I tried the default option we have at the bottom of the graph, but if I have n number of graphs in one that wont help me. I couldn't understand how to get this done.
Can anyone help me with this.
I think you are describing the templating function. Take a look at this link: link
Like you can see in the screenshot of one of my dashboards. With the help of templating I can select between different query's to show in the graph:
In your case the query would look something like:
SELECT count("responsecode") FROM "samples" WHERE "label" = /^$YOUR_TEMPLATE_NAME$/ AND ...