We are pleased to announce, that http://explain.solr.pl is now available for users. Please remember that this is a beta version and will be further developed. If you want to know more details please read the following blog post.
Currently explain.solr.pl can analyze the queries from the 3.x version of Solr and it’s getting ready to handle 4.0 version of Solr.
In the current version of explain.solr.pl visualizes score values of the given documents.
In order to add a new 'explain' visualization you need to run your query with an additional debugQuery=on parameter and then paste the result returned by Solr to explain.solr.pl (if you will use web browser to get the results please remember to paste the page source). After hitting the “Create explain” button your explain visualization will be created and you will be taken to that visualization web page. Currently explain.solr.pl supports only results in XML format, so if you use another format (like json) please ommit the wt parameter or set it to wt=xml.
It is also possible to verify hits for any document, even one that was not found in the search results (given to Solr with the use of explainOther parameter). It can be useful to check why the given document wasn’t included in the result list.
After creating the new explain visualization you have a series of information available. Information about the query is shown ones for the whole explain, while the rest of the information is shown for each document.
Information about query
In this part of explain.solr.pl you can see:
- Unique identifier of your explain visualization.
- Information about debugOther parameter not being used.
- The actual query.
- Information about explain visualization being available to public.
Fields and values
In this part of the explain.solr.pl you can see information about fields and theirs values that were available in the search results.
Visualization of elements influencing total score value
The following information is visible in this part of the explain.solr.pl:
- Percentage influence of each value on the global score value of the document.
- Pie chart visualizing the data visible in the left column.
Getting back to once visualized explain
If you wish to get back to your once visualised explain please to the following URL address: http://explain.solr.pl/explains/EXPLAIN_ID, where EXPLAIN_ID is the unique identifier of your explain. If you don’t remember unique identifier of your visualized explain, you can find it out in the “history” page.
Hiding your explain
If you don’t want your explain information to be available to public, please uncheck the “I want this explain to be visible on history page” checkbox during explain creation. Please remember that in order to get back to private explain you will need to remember its unique identifier.
We also have a request to the community. If you have some notes, if you encounter an error or would like some additional functionality please write an mail to explain(at)solr(dot)pl. This will allow us to better understand Your needs and will make explain.solr.pl better suite Your needs.