Sphinx Search shutting down after `FATAL: accept() failed: Too many open files`

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http://unix.stackexchange.com – I'm running Sphinx Search Server V2.06 ( the latest stable release ) on an Amazon EC2 with Linux CentOS. In general it is running fine, but the searchd.log is showing this error over and over with varying number of repeat times: send() failed: 32: Broken pipe WARNING: last message repeated 6 times I assume this is some sort of lost connection ( based on some Sphinx forum responses ). I'd like to fix this, but it's not our primary concern ... but possibly related. After Sphinx has been running for a while, or under heavy load ( as near as I can tell ), the number of times the 'message repe (HowTos)