Date: Sat, 10 Dec 2005 18:09:30 +0100 From: Mathieu Arnold <mat@mat.cc> To: Imri Zvik <imriz@co.zahav.net.il>, freebsd-performance@freebsd.org Subject: Re: very busy syslog server Message-ID: <F2E0BC14AB434ED2C8993B81@cc-126-240.int.t-online.fr> In-Reply-To: <A6E1736261841F40B12286B0D04B194503CE7839@IGMAIL.InetGold> References: <A6E1736261841F40B12286B0D04B194503CE7839@IGMAIL.InetGold>
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+-le 07/12/2005 12:44 +0200, Imri Zvik =E9crivait :
| Hi!
|=20
| I'm trying to setup a syslog server to serve a large group of servers.
| For the syslog daemon, I have chosen rsyslogd, and the backend is mysql (on
| a different machine).
|=20
| The machine has 2 Intel Xeon 2.80GHz CPUs, and 1GB of RAM, and it is
| running FreeBSD 6 (6.0-STABLE).
|=20
| The problem is, that I see a lot of UDP packets being dropped:
without any tweaking :
# netstat -s -p udp
udp:
750858021 datagrams received
0 with incomplete header
0 with bad data length field
0 with bad checksum
20003 with no checksum
142075741 dropped due to no socket
1152246 broadcast/multicast datagrams dropped due to no socket
1729027 dropped due to full socket buffers
0 not for hashed pcb
605901007 delivered
801662 datagrams output
it's been up for a bit, and I don't use syslog but minirsyslogd, which is in
the ports tree I believe.
CPU: Intel(R) Celeron(R) CPU 2.40GHz (2400.09-MHz 686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0xf29 Stepping =3D 9
Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA=
,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
real memory =3D 259194880 (247 MB)
avail memory =3D 243978240 (232 MB)
--=20
Mathieu Arnold
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