I doubt that this is a graylog issue because it tries to have Netty set the correct size which fails.
I don't know centos well enough to tell if there's anything special (I doubt it) but there's also tcp_rmem and tcp_moderate_rcvbuf to check. Pretty sure there are no ulimits in place since this is root, but doesn't hurt to check. On Jan 28, 2015 10:24 AM, "Petar Koraca" <[email protected]> wrote: > Hello Kay, > > graylog2-server is running as root, on CentOS 6 minimal that does not have > additional limits. > > I've noticed that this exception is shown only with TCP input..so there > may be TCP limitation. I haven't tweaked TCP since we use TCP only for > Keepalived HTTP checks, and UDP for logs (GELF input). > > Both TCP and UDP socket are on same port (12001). Could this cause issue > with receiveBufferSize on graylog2-server? > > Thanks > > > On Tuesday, January 27, 2015 at 6:31:50 PM UTC+1, Kay Röpke wrote: >> >> Could this be an additional user account level? >> As long as Netty tries to set the correct value and then complains this >> sounds like a system limit. >> On Jan 27, 2015 6:27 PM, "Petar Koraca" <[email protected]> wrote: >> >>> Hello, >>> >>> I have some performance issues with graylog2-server 0.92.4 (cannot >>> process more than 7-8k per second), and I think it may be related to UDP >>> buffers. This is CentOS 6 virtual machine with 16 vCPU. >>> >>> $ netstat -ulptn|grep 12201 >>> tcp 0 0 :::12201 :::* >>> LISTEN 2311/java >>> udp 75960 0 :::12201 :::* >>> 2311/java >>> >>> I've noticed this in my logs: >>> >>> 16:31:06,719 WARN [NettyTransport] receiveBufferSize (SO_RCVBUF) for >>> [id: 0x537c78d9, /0:0:0:0:0:0:0:0:12201] should be 1048576 but is 43690. >>> >>> I've set udp_recvbuffer_sizes=1048576 but no luck. >>> >>> Also, I've set net.core.rmem_max from 124928 to 26214400. >>> >>> Any idea where did this 43690 come from? >>> >>> if you need additional information I am at your disposal. >>> >>> Kind regards, >>> >>> Petar Koraca >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "graylog2" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > You received this message because you are subscribed to the Google Groups > "graylog2" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "graylog2" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
