I am trying to implement some dashboard in Grafana on top of ElasticSearch index based on some user selection from dropdown ($Key). My dropdown Grafana variable reads $Key and I have mentioned the query to pull data for that $Key is like fields.key:$Key. Now the issue I am facing is , Grafana query string uses analyze_wildcard:true and I want exact match , is there a way to do it in Grafana.
If you go ahead and edit this file you can change the analyze_wildcard flag to false. I haven't quite figured out why this is hardcoded to true.
Related
I am currently using Grafana v9.1.7 and ElasticSearch 8.4.2
What I'm trying to achieve is to create a dashboard that can filter the data by country. I have a keyword field named honeypot_country (it's a string that mapped into keyword in elastic). When this filter is selected, it should only provide set of data filtered by that country
I already tried to create a variable query to filter these data. But it doesn't filter as I want to. So, I hope anyone can help me with this issue. Thanks
*We are trying to utilize the time range selector in grafana which works only for time series representation as of now. Can you please let me know any way to utilize that time range selector for bar-chart and bar-graph in Grafana representation.*
Adding the Schema, query and representation in grafana for reference.
Schema:[ https://i.stack.imgur.com/n2srW.png]
query: [https://i.stack.imgur.com/HwWRJ.png]
Bar-chart rep: [https://i.stack.imgur.com/1MQbA.png]
Not totally sure what you are asking but hopefully this is right.
Your query has no where clause to filter by the selected time in Grafana. You can use a Grafana macro to add a time range filter. The MySQL macro documentation is here. And there are some examples further down on the page.
You haven't specified what the table schema looks like or which column you want to use for filtering. So I made a guess and just added a where clause with the $__timeFilter macro and filtering on the lastupdated column as it is the only datetime column in your example:
SELECT
lastupdated as time_sec,
TIME_FORMAT(sec_to_time(time), "%H:%i") AS total_time,
mrid as metric
,time/3600 as time_in_hours
FROM margetomerge.mergedetails
WHERE $__timeFilter(lastupdated)
order by mrid desc
Kibana allows to conveniently filter data or visualizations based on time.
Apparently Kibana should automatically detect a "time variable" and use it for time-based filtering. In my specific case the field providing information about time is a Scripted Field: how can I specify that I want to use it for time-based filtering operations?
You can create scripted fields in the Kibana as mentioned in this link.
Basically if you have index pattern, click on that index pattern and you should be able to view the below image. Note the Add scripted field section. I suggest you to explore it.
Once you do that, you should be able to see the scripted field name that you'd have created for that index in the visualiser and thereby you can make use of it as mentioned in the below image.
For e.g. I've created a field myscript as mentioned in above image and added doc['date'].value as script in it.
Important Note: You can only make use of this scripted date field as a filter option.
Kibana doesn't have an option to use this scripted field as the default date field or time filter field or as date field for TSVB as I suppose it requires the field to be indexed.
Hope it helps!
Update: Kibana now supports using Runtime Fields in TSVB visualizations. They are available since 7.11 and are GA since 7.12.
Runtime fields will appear in TSVB just like any other field does (but might be slower to aggregate on).
I am new to Kibana and using it for visualising the data present in Elastic Search.
I am trying to create dynamic dashboard i.e. by using saved search indexes having field values as variable.
What I want
Want to use place holders in the query which can be populated from URL parameters and then search results rendered in dashboard.
So that user can search results by providing some input instead of fixed query.
Can it be done in Kibana? If not, is there any better visualisation tool other than Kibana to serve this purpose.
In the Dashboard View there is actually a searchbar where you can just fire normal Matchqueries and its easy to filter i.e:
Create a table with terms aggregation for one of the fields a user might be interested in.
Click on one of the Terms in the Dashboard
A filter can be seen under the searchbar and all elements in the dashboard will be filtered with it.
If you have line charts users can zoom into the charts to see only information of the zoomed in timeframe
Barcharts are interactive like tables
Play around a bit. Kibana is very powerful you just have to find the right visualizations.
I am using ELK to create dashboards from my log files. I have a log file with entries that contain an id value and a "success"/"failure" value, displaying whether an operation with a given id succeeded or failed. Each operation/id can fail an unlimited number of times and succeed at most once. In my Kibana dashboard I want to display the count of log entries with a "failure" value for each operation id, but I want to filter out cases where a "success" log entry for the id exists. i.e. I am only interested in operations that never succeeded. Any hints for tricks that would achieve this?
This is easy in Kibana 5 search bar. Just add a filter
!(_exists_:"your_variable")
you can toggle the filter or write the inverse query as
_exists_:"your_variable"
In Kibana 4 and Kibana 3 you can use this query which is now deprecated
_missing_:"your_variable"
NOTE: In Elasticsearch 7.x, Kibana now has a pull down to select KQL or Lucene style queries in the search bar. Be mindful that syntax such as _exists_:FIELD is a Lucene syntax and you need to set the pulldown accordingly.
In newer ELK versions (I think after Elasticsearch 6) you should use field:* to check if the field exist and not field:* to check if it's missing.
elastic search reference:
https://www.elastic.co/guide/en/elasticsearch/reference/6.5/query-dsl-query-string-query.html#_wildcards
! (_exists_:NAME) is not working for me. I use suggestion from:
https://discuss.elastic.co/t/kibana-5-0-0--missing--is-not-working-anymore/64336
NOT _exists_:NAME
UPDATE The problem I faced is that ES syntax forbids spaces after negation operators. Use one of:
NOT _exists_:FIELD
!_exists_:FIELD
-_exists_:FIELD
Check tutorial: https://www.timroes.de/2016/05/29/elasticsearch-kibana-queries-in-depth-tutorial/
NOTE: In Elasticsearch 7.x, Kibana now has a pull down to select KQL or Lucene style queries in the search bar. Be mindful that syntax such as _exists_:FIELD is a Lucene syntax and you need to set the pulldown accordingly.
In newer versions of Kibana the default language is now KQL (Kibana Query Language) not Lucene anymore. So most answers here are outdated. The query if a field exists is the following:
your_variable:*
and to answer your question you can just negate that:
not your_variable:*
You can find more documation on here: https://www.elastic.co/guide/en/kibana/7.15/kuery-query.html
You can also toggle back to Lucene if you click on that button inside the search field but in my opinion the new language is way easier to use:
One option would be to create an own query for this criteria in Kibana. Then just have your panel that does the counting just to use this query.
value:failure
More information here:
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#query-string-syntax