Github user rhtyd commented on the pull request: https://github.com/apache/cloudstack/pull/1534#issuecomment-217287468 @swill thanks for sharing, I made the NioConnection's main IO loop aggressive and reduced the SSL handshake timeout to 15s (this was previously 10s, but over last year instead of fixing core issue as we did not know that cause and details, I had increased it to 60s in Link class). This sort of optimization will help CloudStack perform speedy re-connection and handling of clients, even 1000s of malicious clients won't be able to block the main IO loop from handling other requests.
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