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Re: Inconsistent latency to sub_status

April 27, 2012 10:05PM
I found the issue -- this server handles a mix of SSL and regular traffic. When initially configuring SSL, I used a 4096-bit CSR and did not manage cypher selection carefully. As a result, nginx workers spent a lot of time in OpenSSL, calls unable to service other requests. The ratio of SSL to regular traffic made the ping latency erratic.

The fix was straightforward: use a smaller CSR and select server-preferred cyphers that were less computationally intensive.

Cheers,

Dean
Subject Author Posted

Inconsistent latency to sub_status

dbanks January 15, 2012 02:40PM

Re: Inconsistent latency to sub_status

dbanks April 27, 2012 10:05PM



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