Forum Discussion

JCMATTOS_41723's avatar
JCMATTOS_41723
Icon for Nimbostratus rankNimbostratus
Sep 11, 2009

Time of day loadbalance?

Hi we have an LTM 9.4.7 and wanted to see if it was possible to do a scheduled loadbalance based on time of day? In other words we would not want to loadbalance to a certain leg (pool member) during certain times of the day(s). What would be the best way to address this in an iRule or not? Or is this even possible?
application delivery
dev
devops
iRules

3 Replies

  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Sep 11, 2009
    Hi JC,

     

    I suppose it's possible. The iRule code could look something like the following:

     

     

        
 when HTTP_REQUEST { 
 set day "Thursday" 
 set starttime "2100" 
 set stoptime "2200" 
  
   Look for the current date of when the irule was processed 
   scan [clock format [clock seconds] -format { %A %H%M}] %s %s curday curtime  
    
   if {($day eq $curday) && ($curtime >= $starttime) && ($curtime <= $stoptime) } { 
            Code here will execute based on the day of time you want to execute this code 
      pool my_Pool member 10.1.2.200 80 
    } 
 }

     

     

    I haven't testing this code out but I think it could be the bases of what you are looking for.

     

     

    I hope this helps

     

    CB
  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Sep 13, 2009
    There appears to be space between %s where there shouldn't be.

     

     

    Try the following:

     

     

     
  when HTTP_REQUEST {  
  set day "Thursday"  
  set starttime "2100"  
  set stoptime "2200"  
  
    Look for the current date of when the irule was processed  
    scan [clock format [clock seconds] -format { %A %H%M}] %s%s curday curtime 
  
    if {($day eq $curday) && ($curtime >= $starttime) && ($curtime <= $stoptime) } {  
             Code here will execute based on the day of time you want to execute this code  
       pool my_Pool member 10.1.2.200 80  
     }  
  }

     

     

     

    CB

     

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Sep 14, 2009
    Here are a few other related posts which may give you guys ideas:

     

     

    Time based rule

     

    http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&tpage=1&view=topic&postid=57946

     

     

    Scheduled Maintenance Window

     

    http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&tpage=1&view=topic&postid=29608

     

     

    Aaron