[squid-users] High availability based on Squid process
I might need to take this elsewhere, but curious if anyone is doing this already. I need to have a failover Squid proxy server in the event the primary goes down...when I say down, I mean Squid is not working. Is there any linux high availability (fault tolerance) software solutions that would failover if the squid process is not running? - Nick
Re: [squid-users] High availability based on Squid process
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Look at Linux HA (www.linux-ha.org), very nice software. BJ Nick Duda wrote: | I might need to take this elsewhere, but curious if anyone is doing this already. | | I need to have a failover Squid proxy server in the event the primary goes down...when I say down, I mean Squid is not working. Is there any linux high availability (fault tolerance) software solutions that would failover if the squid process is not running? | | - Nick - -- BJ Tiemessen eSoft Inc. 303-444-1600 x3357 [EMAIL PROTECTED] www.eSoft.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIBO9oxD4S8yzNNMMRAqTHAJ0fXLOxQgA1ney43aoNh19MjwBjegCfQ10I l3AEH0WOEf7bhxRUJ+BxkKM= =fXMa -END PGP SIGNATURE-
Re: [squid-users] High availability based on Squid process
BJ Tiemessen ?: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Look at Linux HA (www.linux-ha.org), very nice software. BJ Nick Duda wrote: | I might need to take this elsewhere, but curious if anyone is doing this already. | | I need to have a failover Squid proxy server in the event the primary goes down...when I say down, I mean Squid is not working. Is there any linux high availability (fault tolerance) software solutions that would failover if the squid process is not running? | | - Nick - -- BJ Tiemessen eSoft Inc. 303-444-1600 x3357 [EMAIL PROTECTED] www.eSoft.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIBO9oxD4S8yzNNMMRAqTHAJ0fXLOxQgA1ney43aoNh19MjwBjegCfQ10I l3AEH0WOEf7bhxRUJ+BxkKM= =fXMa -END PGP SIGNATURE- For example script (that discover is squid proccess is running or not) Run this script by cron.
Re: [squid-users] High availability based on Squid process
On Wed, Apr 16, 2008 at 2:09 AM, BJ Tiemessen <[EMAIL PROTECTED]> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Look at Linux HA (www.linux-ha.org), very nice software. > Linux LVS works very well for this situtation. We once had 200 squid hosts and use 2 LVS hosts before them. LVS run with DR or Tunneling mode. -- J. Peng - QQMail Operation Team eMail: [EMAIL PROTECTED] AIM: JeffHua
Re: [squid-users] High availability based on Squid process
J. Peng wrote: On Wed, Apr 16, 2008 at 2:09 AM, BJ Tiemessen <[EMAIL PROTECTED]> wrote: Linux LVS works very well for this situtation. We once had 200 squid hosts and use 2 LVS hosts before them. LVS run with DR or Tunneling mode. Was this in a forward proxy or an acceleration setup? If it was a forward set up, given that a lot of SSL sites don't like the requesting IP to change (and I assume in anything but a LVS-NAT setup the individual Squids make connections from individual real IP addresses), how did you go about "encouraging" a client's connections towards a single back end? From what I've read, the load balancing methods focus on round-robin and least-load. Or do you just SNAT the requests Squid makes? Chris
Re: [squid-users] High availability based on Squid process
Chris Robertson wrote: J. Peng wrote: On Wed, Apr 16, 2008 at 2:09 AM, BJ Tiemessen <[EMAIL PROTECTED]> wrote: Linux LVS works very well for this situtation. We once had 200 squid hosts and use 2 LVS hosts before them. LVS run with DR or Tunneling mode. Was this in a forward proxy or an acceleration setup? If it was a forward set up, given that a lot of SSL sites don't like the requesting IP to change (and I assume in anything but a LVS-NAT setup the individual Squids make connections from individual real IP addresses), how did you go about "encouraging" a client's connections towards a single back end? From what I've read, the load balancing methods focus on round-robin and least-load. Or do you just SNAT the requests Squid makes? Chris I hate replying to myself, but a little bit of reading would have prevented me from asking this question in the first place... http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.ipvsadm.html#DH Chris
