Kibana Simple Graph Without Aggregation - elasticsearch

I am Using ELK to show graphs on kibana .
I have data set Below
ID|A|B
6|5|200
5|15|110
4|25|90
2|50|70
3|70|50
1|100|40
I want Line Graph without any use of Aggregation.
Any Suggestion.

The first step would be to get each value into its own field via logstash. Check out the csv{} filter, which should work with pipe-delimited values as well.
Then, in your kibana visualization, you can add multiple y-axis buckets to display each line. On the left side are two sections - one for the y-axis, and one for the x-axis. Add multiple y-axis values for each data series.

Related

How can I sort the legend by series name in Prometheus/Grafana

I have a Grafana dashboard panel configured to render the results of a Prometheus query. There are a large number of series returned by the query, with the legend displayed to the right. If the user is looking for a specific series, they have to potentially scroll through all of them, and it's easy to miss the one they're looking for. So I'd like to sort the legend by series name, but I can't find any way to do that.
My series name is a concatenation of two labels, so if I could sort the instant vector returned from the PromQL query by label value, I think Grafana would use that order in the legend. But I don't see any way to do that in Prometheus. There is a sort() function, but it sorts by sample value. And I don't see any way to sort the legend in Grafana.
As far as I know, You can only use the function sort() to sort metrics by value.
According to this PR, Prometheus does not intend to provide the function sort_by_label().
According to this Issue, Grafana displays the query results from Prometheus without sorting.
According to this Issue, Grafana supports sorting by value when displaying legend.
In Grafana 7, Prometheus metrics can be transformed from time series format to table format using the Transform module, so that you can sort the metrics by any label or value.
Prometheus doesn't support sorting results by series names as mentioned in https://stackoverflow.com/a/65353296/274937 . If you still need sorting results by metric name or by arbitrary set of labels, then take a look at VictoriaMetrics. It provides sort_by_label and sort_by_label_desc functions. For example, the following query sorts time series returned by query by metric names:
sort_by_label(query, "__name__")
The __name__ refers to metric name. See these docs for more details.

How to plot a time histogram of the ratio of _exists vs NOT _exists for a specific field in kibana?

Using kibana,
There's a way to filter the data for cases where a field exists, and there is a way to filter the data to get only requests where a field does NOT exist.
I'd like to plot a time histogram such that at each point I have a ratio of:
number of records where field X exists to the number of records where it doesn't exist.
How can I achieve this?
You can do it with a vertical bar chart. On the time axis you need to use a Date Histogram aggregation on a date field.
Then create a sub-aggregation (split series) and use a Filters sub-aggregation. You can then define two filters, one to filter documents for which the field exists, and another one for documents that do not contain the field. It should look like this:

how kibana can create a dashboard which sum the column of some log record

I have a request which sum the core and memory of specify jobs, the origin data about core and memory have been put in the elk logs. Like as below picture.
First red column is core data, the second column is memory data, third red column is job name. Now I want to sum the "core" or "memory" by filtering specify jobs and create a dashboard in kibana. As the dashboard, x-axis is 'time', y-axis is sum of 'core' or 'memory'.
I don't know how to sum the column in elk and create dashboard, someone who can help me, thank you so much.
You need to add a scripted field which will add a field at runtime in every document by operations on your current field.
After creating an index pattern , go to that index pattern in settings tab in got to scripted fields tab and a new scripted field.
Name the field which will appear while making the visualisation and add the script as follows.
Here is how to make a script
https://www.elastic.co/guide/en/elasticsearch/reference/6.x/search-request-script-fields.html
And here is a link of how you can do that in kibana
https://www.elastic.co/guide/en/kibana/current/scripted-fields.html

add average value of data in existing chart elasticsearch kibana

I have a project in kibana integrated with elastic search.
In Kibana page I am displaying a chart with X(months) and Y(Euro) values.
I want to show a line in the chart that will show the average Euro value of all data.
For the moment I add a manual value to show the horizontal line in the chart. Chart example I want to show
I want to get average value automatically from my data in elastic search. Is there any option to do this task?
Thank you
Considering it is timeseries data, timelion can be used.
I have created dummy data as follows:
POST /balance_new/doc?pretty
{
"#timestamp": "2018-01-14T12:32:50.548Z",
"amount":136.5
}
There are more entries present like this.
Timelion query:
.es(index='balance_new', timefield='#timestamp', metric=avg:amount).range(135,140).title('Average EUR Monthly').yaxis(label='Average EUR'),
.es(index='balance_new', timefield='#timestamp', metric=avg:amount).aggregate(function=avg)
Graph look like:
You can read more about timelion here: https://www.elastic.co/guide/en/kibana/current/timelion.html

Calculate session duration in Kibana

With Kibana I have managed to visualize continious requests in a linear chart by:
using a line chart
Y-axis: Aggregation: Count
X-axis: Date Histogram with field #timestamp
Split Lines: Sub Aggregation: Terms Field IP address
Now I would like to get the average, minimum and maximum session duration out of this. Is this possible, I haven't quite figured out the right approach to take it from here.
You need to create dashboard to see all this data on one screen.
Save this visualization
Change Y-axis aggregation type to "Average"
Save this visualization with another name
Change Y-axis aggregation type to "Minimum"
Save this visualization with another name
Change Y-axis aggregation type to "Maximum"
Save this visualization with another name
Create Dashboard with all saved visualizations.

Resources