Zend_Search_Lucene "Exception thrown without a stack frame in Unknown on line 0"

I get this error randomly when using Zend_Search_Lucene.

Exception thrown without a stack frame in Unknown on line 0

Has anybody ran int开发者_C百科o this who can help?

Thank you.

Zend_Search_Lucene commits data within destructor.

Static variables are destructed later and exception handling engine may be already unloaded.

Use $index->commmit(); before end of script.