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From "Ian Rowland (JIRA)" <j...@apache.org>
Subject [jira] Updated: (SOLR-2130) Empty index directory causes FileNotFoundException error when starting in-memory SOLR server (RAMDirectory)
Date Wed, 29 Sep 2010 16:53:45 GMT

     [ https://issues.apache.org/jira/browse/SOLR-2130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ian Rowland updated SOLR-2130:
------------------------------

    Attachment: TechSpike.zip

The attached file contains a self contained java project that will show the problem.

Run the code in 'Main' (src/highlighting/techspike.solr.highlighting), 

The first time it is run the 'index' folder does not exist and the application completes (see
output in Console window) . 

The second time it runs the 'Index' folder has been created but it empty: this causes the
error to occur.

If you delete the index directory and run the app again, it works!

The application uses a RAMDirectory factory that is referenced in the SolrConfig.xml.

The project includes the Solr libraries and they claim to be version 1.4.1!

> Empty index directory causes FileNotFoundException error when starting in-memory SOLR
server (RAMDirectory)
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-2130
>                 URL: https://issues.apache.org/jira/browse/SOLR-2130
>             Project: Solr
>          Issue Type: Bug
>          Components: clients - java
>    Affects Versions: 1.4.1
>         Environment: Windows XP/Windows 7
>            Reporter: Ian Rowland
>         Attachments: TechSpike.zip
>
>
> When creating an in-memory Solr Server (using RAMDIrectory) if an empty index directory
exists when the server is created the following error occurs:
> java.lang.RuntimeException: java.io.FileNotFoundException: no segments* file found in
org.apache.lucene.store.RAMDirectory@177b093: files:
> 	at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1068)
> The code expects a segment file to be present - but as it is an in-memory server there
isn't one to find and the error occurs.
> The workaround is to ensure the directory is deleted before starting the server, but
the creation process creates another empty index folder :(

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