Multiple Snort instances processing Pcap files

["Parker, Jonathan E." <jep () g-c-i net>]

I've developed a script (CentOS) to process .pcap files as they arrive in a directory.  It starts an instance of Snort 
to process the file (snort -y -r <pcap file> -c snort.conf -l <a unique directory for the given .pcap>).  I'm having 
occasional issues when multiple instances of Snort are running at the same time, the processing terminates for some 
files with the message "Error during Snort processing".  If I process the file w/o other instances of Snort running, it 
works fine.  It seems to get worse (more failures) the more instances of Snort I have running at once.

Any ideas on what might be causing this issue?

Thanks - Jon

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