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Forum Discussion

ingard's avatar
ingard
Icon for Nimbostratus rankNimbostratus
May 02, 2017

Reselect a specific backend based on initial response

Hi I'm trying to select a different backend and retry the same request based on the response from the initially selected backend. Basically the backend will either serve the request itself or respond...
devops
iRules
LTM
ingard's avatar
ingard
Icon for Nimbostratus rankNimbostratus
May 03, 2017

It works with the change suggested by Jie, but I'm now seeing that the rule logs running through LB_SELECTED twice:

May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : HTTP_REQUEST - Retries : 0 - Request: GET /segment/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZDUiOiJlZWYyMjAyZjg2ZGNjMDM0MmZiMjQ4ODExMTlkZjRlYyIsInVzZXJuYW1lIjoiZmF6ZXJtaW50ODIifQ.rNIkeMsXJfjPh7dlr1XkmY5uhRKuWeEz-4AcjIxRZqo/SD/segment000.ts HTTP/1.1  Host: domain.com  User-Agent: curl/7.46.0  Accept: */*  X-Forwarded-For: 1.2.3.4  jx_scheme: https
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : when LB_SELECTED : Retries : 0 - Server Selected : /Common/pool_media_transcoding 10.0.70.110:8105
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : Retries : 0 - Server Selected : /Common/pool_media_transcoding 10.0.70.110:8105
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : 1.2.3.4:20343: Server IP:port: 10.0.70.110:8105
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : We got 302 from backend. It wants us to redirect to 10.0.70.110 : 8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : HTTP_REQUEST - Retries : 1 - Request: GET /segment/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZDUiOiJlZWYyMjAyZjg2ZGNjMDM0MmZiMjQ4ODExMTlkZjRlYyIsInVzZXJuYW1lIjoiZmF6ZXJtaW50ODIifQ.rNIkeMsXJfjPh7dlr1XkmY5uhRKuWeEz-4AcjIxRZqo/SD/segment000.ts HTTP/1.1  Host: domain.com  User-Agent: curl/7.46.0  Accept: */*  X-Forwarded-For: 1.2.3.4  jx_scheme: https
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : when LB_SELECTED : Retries : 1 - Server Selected : /Common/pool_media_transcoding 10.0.70.110:8105
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : Retries : 1. wanted host/port = 10.0.70.110:8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : Retries : 1 - Server Selected :  10.0.70.110:8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : when LB_SELECTED : Retries : 1 - Server Selected :  10.0.70.110:8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : Retries : 1. wanted host/port = 10.0.70.110:8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : Retries : 1 - Server Selected :  10.0.70.110:8106
May  3 13:00:01 big-7 info tmm2[5109]: Rule /Common/irule_transcoder : 1.2.3.4:20343: Server IP:port: 10.0.70.110:8106