On Wednesday 25 November 2015 00:25:19 SplitIce wrote: > Hi all, > > I couldn't find anything in the mailing list about this issue, surely we > are not the only one? > > When activating reuseport I am seeing all requests be served from a single > nginx process. All others are just idling (SIGALARM interruption of > epoll_wait / epoll_wait timeout according to strace). > > Process 442 attached - interrupt to quit > epoll_wait(60, 8225010, 512, 4294967295) = -1 EINTR (Interrupted system > call) > --- SIGALRM (Alarm clock) @ 0 (0) --- > rt_sigreturn(0xe) = -1 EINTR (Interrupted system call) > epoll_wait(60, 8225010, 512, 4294967295) = -1 EINTR (Interrupted system > call) > --- SIGALRM (Alarm clock) @ 0 (0) --- > > > > This only occurs with reuseport, as soon as it is disabled the load is > correctly distributed again. > > Configuration: > worker_processes 12; # 2x8 cores on server > multiple server blocks on different IP's and ports with reuseaddr. > Linux kernel: 3.18.20 > > Server nic has interrupts over all cores: > > # sudo ethtool -S eth0 |grep rx | grep pack > rx_packets: 11244443305 > rx_queue_0_packets: 1381842455 > rx_queue_1_packets: 1373383493 > rx_queue_2_packets: 1490287703 > rx_queue_3_packets: 1440591930 > rx_queue_4_packets: 1378550073 > rx_queue_5_packets: 1373473609 > rx_queue_6_packets: 1437806438 > > > We have also experimented with disabling iptables and anything else on the > server that could be interfering. I have also loaded it onto three other > fresh servers with the same kernel (same OS image), but with different nic > cards (with and without multiple rx queues) with no changes. > > This has me stumped. Ideas? >
You should try another kernel. wbr, Valentin V. Bartenev _______________________________________________ nginx-devel mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx-devel
