Date: Sat, 10 Dec 2005 14:58:21 -0800 From: "Jin Guojun [VFFS]" <j_guojun@lbl.gov> To: Mathieu Arnold <mat@mat.cc> Cc: Imri Zvik <imriz@co.zahav.net.il>, freebsd-performance@freebsd.org Subject: Re: very busy syslog server Message-ID: <439B5D8D.70203@lbl.gov> In-Reply-To: <F2E0BC14AB434ED2C8993B81@cc-126-240.int.t-online.fr> References: <A6E1736261841F40B12286B0D04B194503CE7839@IGMAIL.InetGold> <F2E0BC14AB434ED2C8993B81@cc-126-240.int.t-online.fr>
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What is "netstat -m" output on your machine? Mathieu Arnold wrote: >+-le 07/12/2005 12:44 +0200, Imri Zvik écrivait : >| Hi! >| >| 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). >| >| The machine has 2 Intel Xeon 2.80GHz CPUs, and 1GB of RAM, and it is >| running FreeBSD 6 (6.0-STABLE). >| >| 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 = "GenuineIntel" Id = 0xf29 Stepping = 9 > >Features=0xbfebfbff<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 = 259194880 (247 MB) >avail memory = 243978240 (232 MB) > >
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