Re: Healthchecking problem on Alteons
Ravi Kumar <[email protected]> Sun, 17 Jan 2010 11:52:07 +0530
| Newsgroups | gmane.comp.programming.load-balancing.general |
|---|---|
| Message-ID | <[email protected]> |
--===============0859128733== Content-Type: multipart/alternative; boundary=001636e0a4ec93fe33047d5641c3 --001636e0a4ec93fe33047d5641c3 Content-Type: text/plain; charset=ISO-8859-1 Hi, When you say real server is failing intermittently, the problem could be with the real server. capture the health check packets on the server and analyze the problem. /c/slb/real 1/tmout is the real server time out while there is another tmout under service menu - service timeout. Those timers are session inactivity timeouts. Is your problem with session timeouts? The other solution mentioned in this thread, its the interval between two health check connections from the switch. Is the health check failing? You can see the timestamp when the hc failed with the command /info/slb/real Thanks, -Ravi. On Wed, Jan 13, 2010 at 4:17 PM, matmane <[email protected]> wrote: > > Hi, > > 10 mins is the default timeout of session entry, i think you must increase > this value. > > Command : /cfg/slb/real <server number>/tmout > > eg : if you have 3 real servers , you need to define one tmout for each > real > server : > > /cfg/slb/real 1/tmout 15 > /cfg/slb/real 2/tmout 15 > /cfg/slb/real 3/tmout 15 > > regards, > > MATMANE. > > > sivakumar wrote: > > > > Hi, > > > > I have a cluster setup for https and https with real servers in it and > the > > problem is one of the real server(real2) fails intermittently every 10 > > mins and we couldn't find out why it happens. When I do a ping & > > Traceroute it works and the server is reachable. Could you tell me is > > there any way i could sort this out or any config that i missed needs to > > be configured. Let me know if you need any other info.. > > > > Here is the config below > > > > virt 240 > > 240: IP4 203.x.x.x, 00:00:5e:0f:f1:f0, dname www.xyz.com > > virtual ports: > > http: rport http, group 240, HTTP, backup none, content > > //PRXYTREwww/LBhealth.txt, pbind cookie, rtspslb none, dbind > > cookie name: PRXYTRE > > cookie persistence mode: insert > > inserted cookie expires with the session > > real servers: > > 241: real1, backup none, 50 ms, group ena, up > > 242: real2, backup none, 24 ms, group ena, Failed > > 243: real3, backup none, 35 ms, group ena, up > > https: rport https, group 241, HTTPS, backup none, pbind sslid, > > rtspslb none, dbind > > real servers: > > 241: real1, backup none, 48 ms, group ena, up > > 242: real2, backup none, 22 ms, group ena, Failed > > 243: real3, backup none, 30 ms, group ena, up > > > > > > 242: real2, 00:14:5e:ff:0a:0a, vlan 9, port 9, health 4, Failed > > rport 80, Failed > > rport 443, Failed > > Real server group 240 , Workload Manager none > > Virtual services: > > http: vport http, rtspslb none, pbind cookie > > cookie name: PRXYTRE > > cookie persistence mode: insert > > inserted cookie expires with the session > > virtual server: 240, IP4 203.x.x.x > > Real server group 241 , Workload Manager none > > Virtual services: > > https: vport https, rtspslb none, pbind sslid > > virtual server: 240, IP4 203.x.x.x > > > > > > Real server 242 stats: > > Real server failures: 4142 > > Last time real server up: 20:38:32 Mon Jan 12, 2009 > > Last time real server failed: 20:38:22 Mon Jan 12, 2009 > > Health check attempts: 698982 > > Health check failures: 8308 > > Health check responses: 641778 > > Last valid response time: 24194 usecs > > Average valid response time: 51967 usecs > > Longest valid response time: 9951033 usecs > > Health check type: http > > Last SNMP HC response: > > Buddy Health check failures: 0 > > Current sessions: 1 > > Total sessions: 89415 > > Highest sessions: 58 > > Octets: 3639171273 > > > > > > -- > View this message in context: > http://old.nabble.com/Healthchecking-problem-on-Alteons-tp21411147p27134841.html > Sent from the Load Balancing mailing list archive at Nabble.com. > > _______________________________________________ > lb-l mailing list > [email protected] > http://vegan.net/mailman/listinfo/lb-l > Searchable Archive: http://vegan.net/lb/archive > http://lbdigest.com Load Balancing Digest > http://lbwiki.com Load Balancing Wiki > --001636e0a4ec93fe33047d5641c3 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,<br>=A0 When you say real server is failing intermittently, the problem = could be with the real server. capture the health check packets on the serv= er and analyze the problem.<br><br>/c/slb/real 1/tmout is the real server t= ime out while there is another tmout under service menu - service timeout.<= br> Those timers are session inactivity timeouts. Is your problem with session = timeouts?<br><br>The other solution mentioned in this thread, its the inter= val between two health check connections from the switch. Is the health che= ck failing? You can see the timestamp when the hc failed with the command= =A0 /info/slb/real <br> <br>Thanks,<br>-Ravi.<br><br><div class=3D"gmail_quote">On Wed, Jan 13, 201= 0 at 4:17 PM, matmane <span dir=3D"ltr"><<a href=3D"mailto:matmane@gmail= .com">[email protected]</a>></span> wrote:<br><blockquote class=3D"gmail= _quote" style=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt= 0pt 0.8ex; padding-left: 1ex;"> <br> Hi,<br> <br> 10 mins is the default timeout of session entry, i think you must increase<= br> this value.<br> <br> Command : /cfg/slb/real <server number>/tmout<br> <br> eg : if you have 3 real servers , you need to define one tmout for each rea= l<br> server :<br> <br> /cfg/slb/real 1/tmout 15<br> /cfg/slb/real 2/tmout 15<br> /cfg/slb/real 3/tmout 15<br> <br> regards,<br> <br> MATMANE.<br> <br> <br> sivakumar wrote:<br> ><br> > Hi,<br> ><br> > I have a cluster setup for https and https with real servers in it and= the<br> > problem is one of the real server(real2) fails intermittently every 10= <br> > mins and we couldn't find out why it happens. When I do a ping &am= p;<br> > Traceroute it works and the server is reachable. Could you tell me is<= br> > there any way i could sort this out or any config that i missed needs = to<br> > be configured. Let me know if you need any other info..<br> ><br> > Here is the config below<br> ><br> > =A0virt 240<br> > =A0240: IP4 203.x.x.x, =A0 00:00:5e:0f:f1:f0, dname <a href=3D"http://= www.xyz.com" target=3D"_blank">www.xyz.com</a><br> > =A0 =A0 virtual ports:<br> > =A0 =A0 http: rport http, group 240, HTTP, backup none, content<br> > //PRXYTREwww/LBhealth.txt, pbind cookie, rtspslb none, dbind<br> > =A0 =A0 =A0 cookie name: PRXYTRE<br> > =A0 =A0 =A0 cookie persistence mode: insert<br> > =A0 =A0 inserted cookie expires with the session<br> > =A0 =A0 =A0 =A0 real servers:<br> > =A0 =A0 =A0 =A0 =A0241: real1, backup none, 50 ms, group ena, up<br> > =A0 =A0 =A0 =A0 =A0242: real2, backup none, 24 ms, group ena, Failed<b= r> > =A0 =A0 =A0 =A0 =A0243: real3, backup none, 35 ms, group ena, up<br> > =A0 =A0 https: rport https, group 241, HTTPS, backup none, pbind sslid= ,<br> > rtspslb none, dbind<br> > =A0 =A0 =A0 =A0 real servers:<br> > =A0 =A0 =A0 =A0 =A0241: real1, backup none, 48 ms, group ena, up<br> > =A0 =A0 =A0 =A0 =A0242: real2, backup none, 22 ms, group ena, Failed<b= r> > =A0 =A0 =A0 =A0 =A0243: real3, backup none, 30 ms, group ena, up<br> ><br> ><br> > =A0242: real2, 00:14:5e:ff:0a:0a, vlan 9, port 9, health 4, Failed<br> > =A0 =A0 rport 80, Failed<br> > =A0 =A0 rport 443, Failed<br> > =A0 =A0 Real server group 240 , Workload Manager none<br> > =A0 =A0 =A0 Virtual services:<br> > =A0 =A0 =A0 http: vport http, rtspslb none, pbind cookie<br> > =A0 =A0 =A0 cookie name: PRXYTRE<br> > =A0 =A0 =A0 cookie persistence mode: insert<br> > =A0 =A0 inserted cookie expires with the session<br> > =A0 =A0 =A0 =A0 virtual server: 240, IP4 203.x.x.x<br> > =A0 =A0 Real server group 241 , Workload Manager none<br> > =A0 =A0 =A0 Virtual services:<br> > =A0 =A0 =A0 https: vport https, rtspslb none, pbind sslid<br> > =A0 =A0 =A0 =A0 virtual server: 240, IP4 203.x.x.x<br> ><br> ><br> > Real server 242 stats:<br> > Real server failures: =A0 =A0 =A0 =A0 =A0 =A0 =A04142<br> > Last time real server up: =A0 =A0 20:38:32 Mon Jan 12, 2009<br> > Last time real server failed: 20:38:22 Mon Jan 12, 2009<br> > Health check attempts: =A0 =A0 =A0 =A0 =A0 698982<br> > Health check failures: =A0 =A0 =A0 =A0 =A0 =A0 8308<br> > Health check responses: =A0 =A0 =A0 =A0 =A0641778<br> > Last valid response time: =A0 =A0 =A0 =A0 24194 usecs<br> > Average valid response time: =A0 =A0 =A051967 usecs<br> > Longest valid response time: =A0 =A09951033 usecs<br> > Health check type: =A0 =A0 =A0 =A0 =A0 http<br> > Last SNMP HC response:<br> > Buddy Health check failures: =A0 =A0 =A0 =A0 =A00<br> > Current sessions: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 1<br> > Total sessions: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 89415<br> > Highest sessions: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A058<br> > Octets: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A03639171273<br> ><br> ><br> <br> --<br> View this message in context: <a href=3D"http://old.nabble.com/Healthchecki= ng-problem-on-Alteons-tp21411147p27134841.html" target=3D"_blank">http://ol= d.nabble.com/Healthchecking-problem-on-Alteons-tp21411147p27134841.html</a>= <br> Sent from the Load Balancing mailing list archive at Nabble.com.<br> <br> _______________________________________________<br> lb-l mailing list<br> <a href=3D"mailto:[email protected]">[email protected]</a><br> <a href=3D"http://vegan.net/mailman/listinfo/lb-l" target=3D"_blank">http:/= /vegan.net/mailman/listinfo/lb-l</a><br> Searchable Archive: <a href=3D"http://vegan.net/lb/archive" target=3D"_blan= k">http://vegan.net/lb/archive</a><br> <a href=3D"http://lbdigest.com" target=3D"_blank">http://lbdigest.com</a> L= oad Balancing Digest<br> <a href=3D"http://lbwiki.com" target=3D"_blank">http://lbwiki.com</a> Load = Balancing Wiki<br> </blockquote></div><br> --001636e0a4ec93fe33047d5641c3-- --===============0859128733== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ lb-l mailing list [email protected] http://vegan.net/mailman/listinfo/lb-l Searchable Archive: http://vegan.net/lb/archive http://lbdigest.com Load Balancing Digest http://lbwiki.com Load Balancing Wiki --===============0859128733==--