Re: [squid-users] Multi ISP Load Balancing Problem
Lazuardi Nasution wrote: Hi all, I'm running Windows based multi instance Squid with multi interface connected to different ISP for load balancing. The configuration is like below. Squid Main http_port :8080 icp_port 3130 tcp_outgoing_adderss Squid Parent A http_port :8081 icp_port 3131 tcp_outgoing_adderss Squid Parent B http_port :8082 icp_port 3132 tcp_outgoing_adderss Users -> Main Squid -(Round Robbin Parent)-> Squid Parent A/B -(Direct)-> ISP A/B -> Internet The performance is very bad and sometime Squid Parent B was hang (service was stopped) with "Loop" related log on Cache.Log. I didn't see CPU and RAM exhausting and the HD queue was low enough. Any suggestion with my problem ? Any info as to what squid version and release you are using? And what the error actually says? Amos -- Please use Squid 2.6STABLE17+ or 3.0STABLE1+ There are serious security advisories out on all earlier releases.
RE: [squid-users] Multi ISP Load Balancing Problem
We are using Squid 2.6STABLE18 for Windows. The performance is so bad. Here is some of weird things on log file, I don't have any idea of them. 2008/02/28 11:17:38| comm_select: select failure: (10038) WSAENOTSOCK, Socket operation on nonsocket. 2008/02/28 11:17:38| Select loop Error. Retry 10 FATAL: Select Loop failed! Squid Cache (Version 2.6.STABLE18): Terminated abnormally. CPU Usage: 106.922 seconds = 35.922 user + 71.000 sys Maximum Resident Size: 41444 KB Page faults with physical i/o: 12269 These errors only happen when there is many users are accessing the Squid. These errors didb't happen when I just using one instance and do load balancing by separating tcp_outgoing_address on Squid Main based on odd or even clients source address, I'm not satisfied with this load balancing method. Best regards, -Original Message- From: Amos Jeffries [mailto:[EMAIL PROTECTED] Sent: Thursday, February 28, 2008 8:58 PM To: Lazuardi Nasution Cc: squid-users@squid-cache.org Subject: Re: [squid-users] Multi ISP Load Balancing Problem Lazuardi Nasution wrote: > Hi all, > > I'm running Windows based multi instance Squid with multi interface > connected to different ISP for load balancing. The configuration is > like below. > > Squid Main > http_port :8080 > icp_port 3130 > tcp_outgoing_adderss > > Squid Parent A > http_port :8081 > icp_port 3131 > tcp_outgoing_adderss > > Squid Parent B > http_port :8082 > icp_port 3132 > tcp_outgoing_adderss > > Users -> Main Squid -(Round Robbin Parent)-> Squid Parent A/B > -(Direct)-> ISP A/B -> Internet > > The performance is very bad and sometime Squid Parent B was hang > (service was stopped) with "Loop" related log on Cache.Log. I didn't > see CPU and RAM exhausting and the HD queue was low enough. > > Any suggestion with my problem ? Any info as to what squid version and release you are using? And what the error actually says? Amos -- Please use Squid 2.6STABLE17+ or 3.0STABLE1+ There are serious security advisories out on all earlier releases.
Re: [squid-users] Multi ISP Load Balancing Problem
.. how hard are you pushing squid under Windows? Adrian On Fri, Feb 29, 2008, Lazuardi Nasution wrote: > We are using Squid 2.6STABLE18 for Windows. The performance is so bad. Here > is some of weird things on log file, I don't have any idea of them. > > 2008/02/28 11:17:38| comm_select: select failure: (10038) WSAENOTSOCK, > Socket operation on nonsocket. > 2008/02/28 11:17:38| Select loop Error. Retry 10 > FATAL: Select Loop failed! > Squid Cache (Version 2.6.STABLE18): Terminated abnormally. > CPU Usage: 106.922 seconds = 35.922 user + 71.000 sys > Maximum Resident Size: 41444 KB > Page faults with physical i/o: 12269 > > These errors only happen when there is many users are accessing the Squid. > These errors didb't happen when I just using one instance and do load > balancing by separating tcp_outgoing_address on Squid Main based on odd or > even clients source address, I'm not satisfied with this load balancing > method. > > Best regards, > > > -Original Message- > From: Amos Jeffries [mailto:[EMAIL PROTECTED] > Sent: Thursday, February 28, 2008 8:58 PM > To: Lazuardi Nasution > Cc: squid-users@squid-cache.org > Subject: Re: [squid-users] Multi ISP Load Balancing Problem > > Lazuardi Nasution wrote: > > Hi all, > > > > I'm running Windows based multi instance Squid with multi interface > > connected to different ISP for load balancing. The configuration is > > like below. > > > > Squid Main > > http_port :8080 > > icp_port 3130 > > tcp_outgoing_adderss > > > > Squid Parent A > > http_port :8081 > > icp_port 3131 > > tcp_outgoing_adderss > > > > Squid Parent B > > http_port :8082 > > icp_port 3132 > > tcp_outgoing_adderss > > > > Users -> Main Squid -(Round Robbin Parent)-> Squid Parent A/B > > -(Direct)-> ISP A/B -> Internet > > > > The performance is very bad and sometime Squid Parent B was hang > > (service was stopped) with "Loop" related log on Cache.Log. I didn't > > see CPU and RAM exhausting and the HD queue was low enough. > > > > Any suggestion with my problem ? > > Any info as to what squid version and release you are using? > And what the error actually says? > > Amos > -- > Please use Squid 2.6STABLE17+ or 3.0STABLE1+ There are serious security > advisories out on all earlier releases. -- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA -
RE: [squid-users] Multi ISP Load Balancing Problem
Hi, I'm using Windows 2000 with Service Pack 4. If you think that it is a file descriptor problem, why this problem apear when I install 3 Squid Services but not happen on previous configuration which install one Squid Service only ? I don't understand about select(). The Loop related error has been solved by not using ICP between Main to both Parent and Parent to Parent sibling relation ship. But the performance with 3 Squid Services still bad. Best regards, -Original Message- From: Guido Serassio [mailto:[EMAIL PROTECTED] Sent: Monday, March 03, 2008 12:37 AM To: Lazuardi Nasution; squid-users@squid-cache.org Subject: RE: [squid-users] Multi ISP Load Balancing Problem Hi, At 19:51 28/02/2008, Lazuardi Nasution wrote: >We are using Squid 2.6STABLE18 for Windows. The performance is so bad. >Here is some of weird things on log file, I don't have any idea of them. Exactly what Windows version ? I hope that you are using a Windows Server 2003 machine >2008/02/28 11:17:38| comm_select: select failure: (10038) WSAENOTSOCK, >Socket operation on nonsocket. >2008/02/28 11:17:38| Select loop Error. Retry 10 >FATAL: Select Loop failed! >Squid Cache (Version 2.6.STABLE18): Terminated abnormally. >CPU Usage: 106.922 seconds = 35.922 user + 71.000 sys Maximum Resident >Size: 41444 KB Page faults with physical i/o: 12269 > >These errors only happen when there is many users are accessing the Squid. >These errors didb't happen when I just using one instance and do load >balancing by separating tcp_outgoing_address on Squid Main based on odd >or even clients source address, I'm not satisfied with this load >balancing method. Don't forget that scalability of Squid on Windows is very limited: - Maximum file descriptors number is hard coded to 2048 in the Microsoft C Runtime library, so you can safely support a top of around 660 CONCURRENT object requests without user authentication. Please note: OBJECT requests, not concurrent USERS. - For portability reasons, the comm loop is based on select(), this is not the better thing for speed. Here you can find some tips on tuning TCP on Windows: http://smallvoid.com/article/winnt-tcpip-max-limit.html Regards Guido - Guido Serassio Acme Consulting S.r.l. - Microsoft Certified Partner Via Lucia Savarino, 1 10098 - Rivoli (TO) - ITALY Tel. : +39.011.9530135 Fax. : +39.011.9781115 Email: [EMAIL PROTECTED] WWW: http://www.acmeconsulting.it/
RE: [squid-users] Multi ISP Load Balancing Problem
HI, At 19:58 04/03/2008, Lazuardi Nasution wrote: Hi, I'm using Windows 2000 with Service Pack 4. Server, right ? If you think that it is a file descriptor problem, why this problem apear when I install 3 Squid Services but not happen on previous configuration which install one Squid Service only ? I don't understand about select(). The Loop related error has been solved by not using ICP between Main to both Parent and Parent to Parent sibling relation ship. I think that you are pushing too much squid under Windows. But the performance with 3 Squid Services still bad. select() is the worst Squid comm loops. For a really high performance cache, you should use another OS. Please note that I'm writing this as the maintainer of the Windows port of Squid :-) Regards Guido - Guido Serassio Acme Consulting S.r.l. - Microsoft Certified Partner Via Lucia Savarino, 1 10098 - Rivoli (TO) - ITALY Tel. : +39.011.9530135 Fax. : +39.011.9781115 Email: [EMAIL PROTECTED] WWW: http://www.acmeconsulting.it/
RE: [squid-users] Multi ISP Load Balancing Problem
Hi, I'm using Windows 2000 Server. I don't know if I have pushed my server very hard because there is no warning event on server resource monitoring system. I have done with this trouble and have almost sophisticated result by doing following configuration. * give diffrent IP and port for each Squid instance by http_port * give diffrent port for each Squid instance by icp_port * give diffrent IP for each Squid instance by tcp_outgoing_address (for handling different ISP) * give diffrent IP for each Squid instance by udp_incoming_address Main Squid -(Parent)-> Parent Squid A -(Direct)-> ISP A Main Squid -(Parent)-> Parent Squid B -(Direct)-> ISP B Parent Squid A <-(Sibling)-> Parent Squid B Best regards, -Original Message- From: Guido Serassio [mailto:[EMAIL PROTECTED] Sent: Thursday, March 06, 2008 5:22 AM To: Lazuardi Nasution; squid-users@squid-cache.org Subject: RE: [squid-users] Multi ISP Load Balancing Problem HI, At 19:58 04/03/2008, Lazuardi Nasution wrote: >Hi, > >I'm using Windows 2000 with Service Pack 4. Server, right ? > If you think that it is a file >descriptor problem, why this problem apear when I install 3 Squid >Services but not happen on previous configuration which install one >Squid Service only ? I don't understand about select(). The Loop >related error has been solved by not using ICP between Main to both >Parent and Parent to Parent sibling relation ship. I think that you are pushing too much squid under Windows. >But the performance with 3 Squid Services still bad. select() is the worst Squid comm loops. For a really high performance cache, you should use another OS. Please note that I'm writing this as the maintainer of the Windows port of Squid :-) Regards Guido - Guido Serassio Acme Consulting S.r.l. - Microsoft Certified Partner Via Lucia Savarino, 1 10098 - Rivoli (TO) - ITALY Tel. : +39.011.9530135 Fax. : +39.011.9781115 Email: [EMAIL PROTECTED] WWW: http://www.acmeconsulting.it/
