[syslog-ng] Message loss (probably) within syslog-ng
vincent at haverlant.org
Mon Mar 6 13:25:12 CET 2006
Le Mon Mar 6 06:59:01 2006, Mike a écrit:
| this tells you how to adjust the buffer size system wide. http://www.29west.com/docs/THPM/udp-buffer-sizing.html
| but if netstat -su is not showing packet loss, then adjusting this value probably won't help you. but it may be worth a shot..
This is a very good and interesting link for the generic tuning of the
network stack. However what is says is how to set the udp max buffer
# ndd /dev/udp udp_max_buf
which according to
http://docs.sun.com/app/docs/doc/806-6779/6jfmsfr8b?a=view sets the
"maximum allowed buffer size for an udp socket", not the actual value.
The default receive buffer size is set using the parameter
udp_recv_hiwat which is currently set to its maximum value of 65536. To
increase it the only way is the setsockopt syscall.
Anyway I don't get that many udpInOverflows (a few everyday) but it does
not explain the few thousand messages I miss in my logs files.
.~. Vincent Haverlant -- Galadril -- #ICQ: 35695155
/V\ MSN: vincent_msn at haverlant.org -- http://www.haverlant.org/
/( )\ Parinux member: http://www.parinux.org/
^^-^^ GPG: 8FEA 52C2 5C54 A201 2375 0FA5 AF2E 1881 92D0 EE84
More information about the syslog-ng