Perhaps a driver bug? - have you verified ethtool -S output? On Wed, Apr 16, 2014 at 2:42 AM, Franco Broi <franco.broi@xxxxxxxxxx> wrote: > > I've increased my tcp_max_syn_backlog to 4096 in the hope it will > prevent it from happening again but I'm not sure what caused it in the > first place. > > On Wed, 2014-04-16 at 17:25 +0800, Franco Broi wrote: >> Anyone seen this problem? >> >> server >> >> Apr 16 14:34:28 nas1 kernel: [7506182.154332] TCP: TCP: Possible SYN flooding on port 49156. Sending cookies. Check SNMP counters. >> Apr 16 14:34:31 nas1 kernel: [7506185.142589] TCP: TCP: Possible SYN flooding on port 49157. Sending cookies. Check SNMP counters. >> Apr 16 14:34:53 nas1 kernel: [7506207.126193] TCP: TCP: Possible SYN flooding on port 49159. Sending cookies. Check SNMP counters. >> >> client >> >> Apr 16 14:34:21 charlie5 GlusterFS[6718]: [2014-04-16 06:34:21.710137] C [client-handshake.c:127:rpc_client_ping_timer_expired] 0-data-client-4: server 192.168.35.107:49157 has not responded in the last 42 seconds, disconnecting. >> Apr 16 14:34:31 charlie5 GlusterFS[6718]: [2014-04-16 06:34:31.711605] C [client-handshake.c:127:rpc_client_ping_timer_expired] 0-data-client-2: server 192.168.35.107:49156 has not responded in the last 42 seconds, disconnecting. >> Apr 16 14:35:13 charlie5 GlusterFS[6718]: [2014-04-16 06:35:13.758227] C [client-handshake.c:127:rpc_client_ping_timer_expired] 0-data-client-0: server 192.168.35.107:49159 has not responded in the last 42 seconds, disconnecting. >> >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users@xxxxxxxxxxx >> http://supercolony.gluster.org/mailman/listinfo/gluster-users > > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://supercolony.gluster.org/mailman/listinfo/gluster-users -- Religious confuse piety with mere ritual, the virtuous confuse regulation with outcomes _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://supercolony.gluster.org/mailman/listinfo/gluster-users
