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For some reason recently I've been getting this error in my apache error log on my server. We have a single instance of memcached running on our Mac OSX 10.7 server.

(20014)Internal error: Unknown memcached error while writing: Could not find specified socket in poll list.

I can't find anything about this error message online :. Does anyone have any idea what could cause it or how I can try debugging it? There's a memcached-tools(?) function on linux, but it doesn't seem to be on the Mac...

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up vote 0 down vote accepted

It appears to have been because we were missing an instance of memcache running. We have our subversion setup to use memcache on port 11213, so I just started another instance of memcached on 11213 (memcached -dp 11213), and everything is good again!

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