I have the same problem with Freebsd + radius and Mysql 5. server hp core 2 duo, 2 gb ram
we have 1000 connections concurrent... and we have the same error "discarding packet' Alan Dekok sayd to me that the problem is the same "slow database" I'm don't found a solution yet 2009/11/10 Dinh Pham Cong <din...@vega.com.vn> > Hi Alan, > > On Tue, Nov 10, 2009 at 5:35 PM, Alan DeKok <al...@deployingradius.com>wrote: > >> Dinh Pham Cong wrote: >> > start_servers = 1024 >> > max_servers = 3000 >> > max_spare_servers = 3000 >> >> That's a little high. >> >> > I saw that when 1000 client was created at the same time and send requests > to Radius server concurrently there were about 2000+ radiusd threads were > created too. I thought that 1000 concurrent client could be translated to > more than 1000 packets/s. > > I have done another load tests with smaller concurrent clients: 100, 200, > 500. However, Radiusd can not handle more than 1000 request/s (total > requests/total time used to sent all the requests). For example Radiusd can > handle 20 000 request in more than 20 seconds, 40 000 requests in more than > 43 seconds. > > > My sql.conf >> > >> > # number of sql connections to make to server >> > num_sql_socks = 1000 >> >> Remember: 1000 packets/s does *not* mean 1000 threads or 1000 SQL >> sockets. The server should be able to do 1000 packets/s with a much >> smaller number of threads && sockets. i.e. 50/50. >> > > I thought that num_sql_socks = 1000 meaned that Radiusd would create a > connection pool of 1000 MySQL connections. > > >> > I developed a Java client that can create 1000 concurrent threads that >> > connect and send accounting requests (start and stop) to Radius server. >> >> See also "radperf" (http://networkradius.com/radperf.html). It can do >> load testing and user login simulations. >> >> > Thanks I will try. > > >> > However, after sending for 20 or 30 seconds, radius server generated a >> > lot of error messages and crashed >> > >> > Error messages >> > >> > Tue Nov 10 16:14:34 2009 : Error: Discarding duplicate request from >> > client tester1 port 41442 - ID: 134 due to unfinished request 2436 >> >> This is likely because your SQL database is too slow. >> >> Have you checked to see if the SQL database can handle 1000 inserts/s? >> >> > Crashed >> > >> > Nov 10 15:55:35 Mobile6 kernel: radiusd[22242]: segfault at >> > 00000000000000c8 rip 0000003daee5306b rsp 00002aae5d82a780 error 4 >> >> See doc/bugs for instructions on producing useful crash reports. We >> can then use these to fix bugs. >> >> > Nov 10 15:57:29 Mobile6 kernel: radiusd[30941]: segfault at >> > 00000000000000c8 rip 0000003daee5306b rsp 00002aaee56de180 error 4 >> > Nov 10 16:14:36 Mobile kernel: radiusd[10788]: segfault at >> > 00000000000000c8 rip 0000003daee5306b rsp 00002aac913de780 error 4 >> > >> > What do I need to do to enable FreeRadius server to meet more than 1000 >> > accounting request (INSERT AND DELETE) for a second? >> >> Use a database that can handle 1000 requests/s. >> > > I have done separate load tests of INSERT and DELETE on radacct table > (using MEMORY engine) and found that MySQL 5.0 can handle about 6000 - 8700 > qps. I have used mysqlslap to do that. > > > Thanks > > Dinh > > - > List info/subscribe/unsubscribe? See > http://www.freeradius.org/list/users.html > -- Att. Alisson F. Gonçalves Sistemas de Informação - UFGD
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