Re: [RADIATOR] Radiator high Availability
On 08/26/2012 03:00 PM, sergio wrote: I use Radiator 4.10 and I need to place a second radiator and I use FreeBSD, but I need a solution to the sessions (SessionDatabase SQL) is well synchronized since I use mysql. A mysql replication via resolves or is there a better solution? Here are some thoughts: You should consider cases where the replication master becomes unreachable. If radiusd switches to secondary DB server, what happens when the primary comes back? I am assuming there are two DB servers, master that replicates to secondary server. If there's a network connectivity problem with one radiusd and the DB master server and radiusd decides to switch to the secondary DB. What happens when there are writes to both DB server. If the writes can happen to both DB servers, how fast should the replication be? Assuming you have two radius servers and there's a very short lived session where the accounting start and stop messages go to different RADIUS servers which talk to different DB servers, is the DB synchronised when the session ends? Could session stop be recorded after session start? If you try to make replication quicker, how soon will the database start having load problems. Note: I'm not very familiar with MySQL synchronisation. There are likely many other things to consider too. I also thought about using FreeBSD with CARP. CARP seems to allow hosts to share the same IP address. RADIUS requires certain amount of state to handle e.g., retries and knowing which reply is related to which request. Sharing an address can lead to problems when related RADIUS messages are sent to multiple different RADIUS servers. Thanks, Heikki -- Heikki Vatiainen h...@open.com.au Radiator: the most portable, flexible and configurable RADIUS server anywhere. SQL, proxy, DBM, files, LDAP, NIS+, password, NT, Emerald, Platypus, Freeside, TACACS+, PAM, external, Active Directory, EAP, TLS, TTLS, PEAP, TNC, WiMAX, RSA, Vasco, Yubikey, MOTP, HOTP, TOTP, DIAMETER etc. Full source on Unix, Windows, MacOSX, Solaris, VMS, NetWare etc. ___ radiator mailing list radiator@open.com.au http://www.open.com.au/mailman/listinfo/radiator
Re: [RADIATOR] Radiator high Availability
Thank you for answers. What is the safest way to have 2 servers for high availability with Radiator. Thanks -Original Message- From: h...@open.com.au Sent: Mon, 27 Aug 2012 15:17:59 +0300 To: radiator@open.com.au Subject: Re: [RADIATOR] Radiator high Availability On 08/26/2012 03:00 PM, sergio wrote: I use Radiator 4.10 and I need to place a second radiator and I use FreeBSD, but I need a solution to the sessions (SessionDatabase SQL) is well synchronized since I use mysql. A mysql replication via resolves or is there a better solution? Here are some thoughts: You should consider cases where the replication master becomes unreachable. If radiusd switches to secondary DB server, what happens when the primary comes back? I am assuming there are two DB servers, master that replicates to secondary server. If there's a network connectivity problem with one radiusd and the DB master server and radiusd decides to switch to the secondary DB. What happens when there are writes to both DB server. If the writes can happen to both DB servers, how fast should the replication be? Assuming you have two radius servers and there's a very short lived session where the accounting start and stop messages go to different RADIUS servers which talk to different DB servers, is the DB synchronised when the session ends? Could session stop be recorded after session start? If you try to make replication quicker, how soon will the database start having load problems. Note: I'm not very familiar with MySQL synchronisation. There are likely many other things to consider too. I also thought about using FreeBSD with CARP. CARP seems to allow hosts to share the same IP address. RADIUS requires certain amount of state to handle e.g., retries and knowing which reply is related to which request. Sharing an address can lead to problems when related RADIUS messages are sent to multiple different RADIUS servers. Thanks, Heikki -- Heikki Vatiainen h...@open.com.au Radiator: the most portable, flexible and configurable RADIUS server anywhere. SQL, proxy, DBM, files, LDAP, NIS+, password, NT, Emerald, Platypus, Freeside, TACACS+, PAM, external, Active Directory, EAP, TLS, TTLS, PEAP, TNC, WiMAX, RSA, Vasco, Yubikey, MOTP, HOTP, TOTP, DIAMETER etc. Full source on Unix, Windows, MacOSX, Solaris, VMS, NetWare etc. ___ radiator mailing list radiator@open.com.au http://www.open.com.au/mailman/listinfo/radiator FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks orcas on your desktop! Check it out at http://www.inbox.com/marineaquarium ___ radiator mailing list radiator@open.com.au http://www.open.com.au/mailman/listinfo/radiator
[RADIATOR] Radiator high Availability
I use Radiator 4.10 and I need to place a second radiator and I use FreeBSD, but I need a solution to the sessions (SessionDatabase SQL) is well synchronized since I use mysql. A mysql replication via resolves or is there a better solution? I also thought about using FreeBSD with CARP. Thanks GET FREE SMILEYS FOR YOUR IM EMAIL - Learn more at http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® Messenger, ICQ®, Google Talk™ and most webmails ___ radiator mailing list radiator@open.com.au http://www.open.com.au/mailman/listinfo/radiator
