[ news release ] Apache Solr Query Log Visualization Service


Tokyo, Japan – RONDHUIT Co.,Ltd. announced the launch of “soleami” today. Soleami – pronounced “so ray me” – is a service that visualizes query logs collected by Apache Solr, an open source software search engine, and is provided for free.


Solr is an OSS, Open Source Software, search engine used worldwide for searches inside private intranet sites as well as company sites that are published on internet.

Solr keeps track of search requests in a log file called query log. This query log is like “a list of visitors’ needs” but has not been exploited because the task you need to perform to summarize the log by search keyword requires a huge amount of work.

To bring this problem to a close, soleami has been architected and developed so that it only requires users to upload query logs to summarize them and display charts in a Web browser. Any Solr manager now can upload Solr query logs to soleami and visualize needs of visitors for free.

Soleami supports the following charts (See sample screenshots here).

  • Top 10
    Top 10 summarizes and displays 10 most popular search keywords by month. You can see the seasonal variability of search keywords because it can display keywords as old as 12 months.
  • Trend 1000
    Trend 1000 displays a line chart of 1000 most popular search keywords for last 12 months. It also displays a bar chart of 20 most popular sub keywords that are specified along with search keywords.
  • Zero Hits
    “0 hits” displays a bar chart that indicates the number of queries in last 12 months that ended up with “0 hit” – queries that failed to find any search result. “0 hits” indicates that your site was unable to fill the needs of the visitors. Cutting the number of 0 hits would increase visitor satisfaction for general sites and conversion rate for EC sites.

The soleami development team is making constant efforts to improve quality and function of the service so that you can visualize your query logs in various angles.

Origin of soleami

Soleami is derived from a French “ami du soleil” that means a friend of sun. We named this service soleami hoping you would always have and use it as a friend of Solr, which is derived from a word solar that means sun.

About Apache Solr

Apache Solr is a search engine developed by Apache Software Foundation, an open source software developer/administrator. Solr is based on Apache Lucene that is developed by Doug Cutting, the founder of Apache Hadoop.


About RONDHUIT Co.,Ltd.

RONDHUIT provides support services to help enterprises and educational institutes implement Apache Lucene/Solr. In addition to consultation service in implementing Solr, RONDHUIT provides training service and support services around Solr. Koji Sekiguchi, who leads RONDHUIT, is an active Apache Lucene/Solr committer as well.


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