Question about new mod_jk jk_lb_worker.c

[Peter Rossbach]

Hello Mladen,
I have see your checkin's and Rainer Jung very fine mod_jk extension 
concept mail.

I have two questions about lb changes:
a)   Why you not change the lb_value value after successful recovery at 
service() function ?
      After a longer fail the recovered worker get for a long time all 
new sessions...
      See also Rainers Jung mail
b)   I have play around with the mod_jk2  lb algo and find the level 
feature (hot-standby) very usefull.
     With this feature I have setup to apache with two separate clusters.
      Apache 1
          Worker   T1.1   level 0
          Worker   T1.2   level 0
          Worker  T1.3    level 0

          Worker   T2.1   level 1
          Worker   T2.2   level 1
          Worker  T2.3    level 1
      Apache 2
          Worker   T1.1   level 1
          Worker   T1.2   level 1
          Worker  T1.3    level 1
          Worker   T2.1   level 0
          Worker   T2.2   level 0
          Worker  T2.3    level 0
      T1.1-T1.3   Cluster 1
      T2.1-T2.3  Cluster 2
   With this configuration every Apache has a preferred cluster.
       Ok small patch are needed:
           After a crashed node the algo find prefered worker at same 
level.

   I thing the domain concept from Rainer Jung in combination with 
preferred worker from mod_jk2 can be very usefull for clustered env.

Regards
Peter

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