I am not modifying MergeFactor so it is set to the default.

{quote} exception 'Zend_Search_Lucene_Exception' with message 'failed to open stream: Too many open files' in /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Storage/File/Filesystem.php:69 Stack trace:

0 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Storage/Directory/Filesystem.php(359): Zend_Search_Lucene_Storage_File_Filesystem->__construct('/storage/search...')

1 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Index/SegmentInfo.php(555): Zend_Search_Lucene_Storage_Directory_Filesystem->getFileObject('_zd3.sti')

2 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Index/SegmentInfo.php(601): Zend_Search_Lucene_Index_SegmentInfo->_loadDictionaryIndex()

3 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene.php(999): Zend_Search_Lucene_Index_SegmentInfo->getTermInfo(Object(Zend_Search_Lucene_Index_Term))

4 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Search/Query/MultiTerm.php(204): Zend_Search_Lucene->hasTerm(Object(Zend_Search_Lucene_Index_Term))

5 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Search/Query/Boolean.php(165): Zend_Search_Lucene_Search_Query_MultiTerm->optimize(Object(Zend_Search_Lucene))

6 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene.php(792): Zend_Search_Lucene_Search_Query_Boolean->optimize(Object(Zend_Search_Lucene))

7 [internal function]: Zend_Search_Lucene->find('cat')

8 /usr/lib64/php/ZendFramework-1.5.2/library/Zend/Search/Lucene/Proxy.php(296): call_user_func_array(Array, Array)

9 MySearchClass.php(160): Zend_Search_Lucene_Proxy->find('cat') #10

{quote}