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SOLR: java.io.FileNotFoundException: no segments* file found

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SOLR: java.io.FileNotFoundException: no segments* file found

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While playing around with one of my development SOLR installations (this time under Windows), I suddenly got a weird error message when feeding data to one of the fresh cores.

 

SEVERE: java.lang.RuntimeException: java.io.FileNotFoundException: no segments* file found in org.apache.lucene.store.SimpleFSDirectory@C:\temp\solr\*\data\index: files:

 

Taking a look at the contents of the index\ directory, it was in fact empty. Seems weird, but my initial guess was that Lucene / SOLR would treat this as a new installation and create the files.

Turns out the issue is that it won’t – as long as the index directory exists, Lucene / SOLR goes looking for the segment files.

Thanks to an old post to the solr-dev list by Yonik, the easiest fix is to simply delete the index directory and restart your applet container (Tomcat in this case).

Deploying code to production can be filled with uncertainty. Reduce the risks, and deploy earlier and more often. Download this free guide to learn more. Brought to you in partnership with Rollbar.

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