Monitoring Service CSS 11500

Unanswered Question
Mar 19th, 2010
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Hello


I am attaching a script of a CSS 11503 with four services configured and one content either.  So, i am actually having problems with this configuration, because when all the services are active, it works perfect, however when one service goes down, the content begins behaving as all services were down.  Then, how can i get successfully that the rest of services work well when one service goes down??....how can i monitor it under this condition???


The idea of the first paragraph is getting the best practice for balance services for a business suite oracle release 12, besides of get a balance correctly when one or more services are not working.


!************************** SERVICE **************************
service apache
  ip address 10.60.4.24
  keepalive port 8001
  keepalive uri "/check.txt"
  keepalive type http
  active


service apache1
  ip address 10.60.4.23
  keepalive port 8001
  keepalive uri "/check.txt"
  keepalive type http
  active


service apache2
  ip address 10.60.4.34
  keepalive port 8001
  keepalive uri "/check.txt"
  keepalive type http
  active


service apache3
  ip address 10.60.4.33
  keepalive type http
  keepalive port 8001
  keepalive uri "/check.txt"
  active


!*************************** OWNER ***************************
owner grupomundial


  content Balanceo-apache
    url "/*"
    add service apache
    vip address 10.60.4.36
    add service apache1
    add service apache2
    protocol tcp
    port 8001
    add service apache3
    balance leastconn
    active


!***************************************************************


I would appreciate any help with regard to it.


Thanks in advanced.


Alexis Munoz

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busterswt Fri, 03/19/2010 - 15:46
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Hi Alexis,


A few questions:


1. Are you sure that the remaining services are alive when you notice one goes down?

2. Do existing connections, when the service goes down, appear to not be sent to another service?

3. Do new connections work?

4. Is it necessary to have a Layer 5 rule (ie. url "/*")? Removing that line and keeping it layer 4 may suffice and increase performance.


You might consider disabling content rule persistence by issuing the 'no persistent' command within the content rule. You may also want to implement 'persistence reset remap' in the global config, as the default is a redirect.


Hope that helps.


James

alemunmo81 Sat, 03/20/2010 - 10:44
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Hello James


First of all, thanks a lot for the soon answer.


Let me give you the answers about your questions:


1. Are you sure that the remaining services are alive when you notice one goes down?


     A:/ i am not completly sure. We are gonna prepare a maintenance windows for watching this behavior.


2. Do existing connections, when the service goes down, appear to not be sent to another service?


   A:/ Apparently, it is happening, the service goes down and is not be sent to another service.

3. Do new connections work?


  A:/ No, when on service goes down, nothing works.


4. Is it necessary to have a Layer 5 rule (ie. url "/*")? Removing that line and keeping it layer 4 may suffice and increase performance.


A:/ I will do that change on the maintenance window.


I would appreciate that we keep in contact on my case once i wil be done the maintenance window for sharing the results.


Thanks once again,


Alexis

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