Maybe this can be helpfull to you: https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Web_Platform/5/html/Administration_And_Configuration_Guide/jgroups-perf-udpbuffer.html
or this for more advanced network tuning: https://wwwx.cs.unc.edu/~sparkst/howto/network_tuning.php hth,, Arie On Tuesday, January 27, 2015 at 6:27:39 PM UTC+1, Petar Koraca 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.
