penbw An addon to pen for monitoring and blacklisting backends automatically.
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backend pen TCP load balancer pen backend penbw

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An addon to pen for monitoring and blacklisting backends automatically. penbw provides an addon to pen for monitoring and blacklisting backends automatically.penbw (pen backend watcher) is a small addon for pen, a high-availability load balancer for TCP. penbw monitors and blacklists a backend automatically in case of a failure. pen itself is able to detect if a backend is down and will blacklist it on the fly. But if, for example, the backend is still accepting connections and simply sending back bogus or nothing, pen will not detect that, as pen doesn't care about application-level protocols. By contrast, penbw will be effective in such a situation. Requirements: · Pen What's New in This Release: · The backend check now accepts more flexible response codes (all 2xx and 3xx). · A connect timeout was fixed for sockets while checking backends. · A little check benchmark was added to automatically adjust server weight/priority in a future version.

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