http://www.cisco.com/en/US/products/hw/modules/ps2706/prod_bulletin09186a0080107b2b.html
"Toolkit Command Language (TCL) scripting—To support more flexible health-probing functionality, this feature gives the administrator the ability to upload and execute TCL scripts on the Cisco CSM. The administrator can create a "script probe" that the Cisco CSM periodically executes for each real server in any server farm associated with the probe. Depending upon the exit code of such a script, the real server is considered healthy, suspect, or failed. A wide variety of probing functions are possible using the flexibility of the TCL scripting environment. The Cisco CSM also supports execution of custom TCL scripts that are not directly associated with a particular server health probe. A "standalone script" dynamically executes a task at a specified interval." http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/csm/4.2.x/configuration/guide/scriptg.pdf On Fri, Dec 10, 2010 at 7:39 PM, LJ LongWing <lj.longw...@gmail.com> wrote: > I'm not seeing that capability of the Cisco CSM unfortunately. > > -----Original Message----- > From: Action Request System discussion list(ARSList) [mailto: > arsl...@arslist.org] On Behalf Of david.zifch...@apcc.com > Sent: Friday, December 10, 2010 12:28 PM > To: arslist@ARSLIST.ORG > Subject: Re: Load Balancers and how? > > Some Load Balancers are able to snmp checks. I've found that this works > pretty well with arsnmpd. > > -Dave > > > > > LJ LongWing > <lj.longw...@gmai > L.COM> To > Sent by: "Action arslist@ARSLIST.ORG > Request System cc > discussion > list(ARSList)" Subject > <arsl...@arslist. Re: Load Balancers and how? > ORG> > > > 12/10/2010 01:15 > PM > > > Please respond to > arsl...@arslist.o > RG > > > > > > > ** > Dave, > I also have similar monitoring on the app/db/web servers…but that doesn’t > solve the problem of having two app servers with a load balancer sitting in > front of them, and ensuring that if node 1 goes offline, that the load > balancer will stop sending traffic to it…that’s what I’m needing. > > From: Action Request System discussion list(ARSList) [ > mailto:arsl...@arslist.org] On Behalf Of Shellman, David > Sent: Friday, December 10, 2010 9:37 AM > To: arslist@ARSLIST.ORG > Subject: Re: Load Balancers and how? > > ** > LJ, > > Here are a few approaches that can be used. > > A product called SiteScope can be configured to access a form through the > MidTier. This gives you end to end up/down information. > > We also use HP OpenView to monitor the services on the MidTier, app and > Database servers. We also monitor the arerror, stderr.log and stdout log > files on the app server, the Oracle logs on the DB server and the MidTier > log files on the MidTier servers. > > I have also created a health check for email services. This simply sends > an email out of the system to one of two email addresses we use for > incoming ticket generation. The email creates a record in a receiving form > that when the record is created updates the record on the sending form. If > the record on the sending form does not generate within a specific time > period an escalation will send us email and page us. > > Dave > > > From: Action Request System discussion list(ARSList) [ > mailto:arsl...@arslist.org] On Behalf Of LJ LongWing > Sent: Friday, December 10, 2010 11:12 AM > To: arslist@ARSLIST.ORG > Subject: Re: Load Balancers and how? > ** > Roger, > What method did they use to determine it was started/running? I personally > have found ‘other teams’ don’t usually have a concept of what ‘functional’ > means in a remedy world. I don’t consider the fact that arserver.exe is in > memory an indicator that my server is functional…I’ve had TOO many > situations where it was in memory, but you couldn’t log onto it. > > From: Action Request System discussion list(ARSList) [ > mailto:arsl...@arslist.org] On Behalf Of Roger Justice > Sent: Friday, December 10, 2010 9:00 AM > To: arslist@ARSLIST.ORG > Subject: Re: Load Balancers and how? > > ** I was able to have the group that configured the load balancer determine > if the Remedy Service was started/running. > > -----Original Message----- > From: LJ LongWing <lj.longw...@gmail.com> > To: arslist <arslist@ARSLIST.ORG> > Sent: Fri, Dec 10, 2010 10:51 am > Subject: Load Balancers and how? > ** > Ok….I’m going down a road that I KNOW some of you have travelled before, I > need your travel tips. We are setting up a server group on 7.5 Windows and > we are putting a load balancer in front of it. How do you all tell if a > node is up? There are 4 types of probes that I’m being told are available… > > PING > HTTP > TCP > Script > > Ping - Obviously doesn’t tell you anything other than the host OS is up > HTTP - Won’t work for telling if a remedy service is up > TCP – My instincts are telling me that this one simply does something > similar to a telnet to a given port, if the port allows you ‘in’, then the > service is considered up. I don’t consider this one viable because it > doesn’t ‘test’ much and I expect that my remedy server could respond to the > port request without actually being functional > Script – This one is the most promising in my mind, but I know nothing > about the scripting language of TCL. > > How does the rest of the remedy world ‘verify’ that their remedy instance > is online so that their load balancer can know to route traffic to it or > not. I just this week finished a java servlet that allows the mid tier > load balancer to know if an individual node is working properly, but the > same can’t be said yet for Remedy….any and all help is appreciated > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > > > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ > > > _______________________________________________________________________________ > UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are" > _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are"
