07-17-2013 08:11 AM
Hi,
I'm working with my networking team trying to get our loadbalancer/failover configured. I've spent quite a bit of time pouring over the ACE documentation, and I'm still unclear on the effect of a failed probe when the probe is applied to an rserver in a serverfarm. In the (simplified) example below, each rserver has an http server that sits in front of two servlet containers providing the content at urls /app1 and /app2.
The question: If (only) PROBE-APP-1 failed against HTTP-1 in SF-APP-1, would HTTP-1 be considered "down" within SF-APP-2?
Thanks in advance!
rserver host HTTP-1 ip address 10.0.1.100 rserver host HTTP-2 ip address 10.0.1.101 probe http PROBE-APP-1 request method head url /app1/probe expect status 200 200 probe http PROBE-APP-2 request method head url /app2/probe expect status 200 200 serverfarm SF-APP-1 rserver HTTP-1 probe PROBE-APP-1 inservice rserver HTTP-2 probe PROBE-APP-1 inservice serverfarm SF-APP-2 rserver HTTP-1 probe PROBE-APP-2 inservice rserver HTTP-2 probe PROBE-APP-2 inservice
edited for formatting...
Solved! Go to Solution.
07-17-2013 09:28 AM
Hi Brent,
If (only) PROBE-APP-1 failed against HTTP-1 in SF-APP-1, would HTTP-1 be considered "down" within SF-APP-2 ?
Answer: No.
HTTP-1 be considered "down" within SF-APP-2 only when probe PROBE-APP-2 fails.
regards,
Ajay kumar.
07-17-2013 09:28 AM
Hi Brent,
If (only) PROBE-APP-1 failed against HTTP-1 in SF-APP-1, would HTTP-1 be considered "down" within SF-APP-2 ?
Answer: No.
HTTP-1 be considered "down" within SF-APP-2 only when probe PROBE-APP-2 fails.
regards,
Ajay kumar.
07-17-2013 11:13 AM
Thanks much for the answer. I assumed that might be the behaviour, as it seems sensible, but was unable to feel confident of that assumption after reading over the documentation many times.
Is my understanding correct that HTTP-1 could be considered "active" (OPERATIONAL state) in SF-APP-2 at the same time it is considered "down" (PROBE-FAILED state) in SF-APP-1?
Cheers!
Brent
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