Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

ingard's avatar
ingard
Icon for Nimbostratus rankNimbostratus
May 03, 2017

LB_SELECTED is processed twice when doing LB::RESELECT

I've got the following code to reselect which backend gets hit based on what response code we get from the initial request:   when CLIENT_ACCEPTED { set retries 0 set debug 5 set defa...
devops
irules
LTM
ingard's avatar
ingard
Icon for Nimbostratus rankNimbostratus
May 03, 2017

Log output:

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