Symptoms

No issues are appearing after logging into JIRA. Logs (atlassian-jira.log) contain errors like this one:

http-8080-Processor17 ERROR [500ErrorPage] Exception caught in 500 page
java.io.FileNotFoundException: no segments* file found in 
org.apache.lucene.store.FSDirectory@C:\DATA\JIRA\issues: files:
org.apache.jasper.JasperException: java.io.FileNotFoundException: no segments* file found in 
org.apache.lucene.store.FSDirectory@C:\DATA\JIRA\issues: files:

Cause

• This can happen if you restore a database backup to a new JIRA system.
• Migrate to a different server.
• After an upgrade.

Resolution

1. Configure JIRA to utilize a new Index location under Administration > Indexing. If your dashboard does not appear, try pasting the URL directly to the administration page: http://YOUR_SERVER_URL/secure/admin/jira/IndexAdmin.jspa
2. Click Full/Lock Reindex to rebuild the index