Hi, I'm closely monitoring varnish 5.0 stats. I could fix some issues, but I am stuck on where sc_rx_timeout is coming from.
Looking at the documentation, it says "Number of session closes with Error RX_TIMEOUT (Receive timeout)". I do not fully understand this sentence. - Is this a timeout expressing that varnish does not receive an answer within a certain time from the backend? - Do these timeouts happen from time to time and are ok, or is there an issue on the server (code, params?). - If parameters, which ones could be candidates to tune? - Also I have issues with more parameters like sc_req_http10 (please have a look below) and unsure if they are severe. I would be happy if you could point me in some direction. Cheers, Jens # /usr/sbin/varnishstat -1 | grep -i '\(err\|fail\|drop\)' MAIN.sess_drop 0 0.00 Sessions dropped MAIN.sess_fail 0 0.00 Session accept failures MAIN.client_req_400 2 0.00 Client requests received, subject to 400 errors MAIN.client_req_417 0 0.00 Client requests received, subject to 417 errors MAIN.backend_fail 2 0.00 Backend conn. failures MAIN.fetch_failed 0 0.00 Fetch failed (all causes) MAIN.fetch_no_thread 0 0.00 Fetch failed (no thread) MAIN.threads_failed 0 0.00 Thread creation failed MAIN.sess_dropped 0 0.00 Sessions dropped for thread MAIN.sess_closed_err 21784 0.30 Session Closed with error MAIN.sc_req_http10 1223 0.02 Session Err REQ_HTTP10 MAIN.sc_rx_bad 0 0.00 Session Err RX_BAD MAIN.sc_rx_body 34 0.00 Session Err RX_BODY MAIN.sc_rx_junk 2 0.00 Session Err RX_JUNK MAIN.sc_rx_overflow 0 0.00 Session Err RX_OVERFLOW MAIN.sc_rx_timeout 20525 0.29 Session Err RX_TIMEOUT MAIN.sc_tx_error 0 0.00 Session Err TX_ERROR MAIN.sc_overload 0 0.00 Session Err OVERLOAD MAIN.sc_pipe_overflow 0 0.00 Session Err PIPE_OVERFLOW MAIN.sc_range_short 0 0.00 Session Err RANGE_SHORT MAIN.esi_errors 0 0.00 ESI parse errors (unlock) SMA.s0.c_fail 0 0.00 Allocator failures SMA.Transient.c_fail 0 0.00 Allocator failures _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
