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HT_35873's avatar
HT_35873
Icon for Nimbostratus rankNimbostratus
Feb 23, 2011

table add -subtable <sometable> <somekey> <somevalue> 1140 43200 - timeout not working

Hi,

 

 

I have an iRule that counts active user sessions. It uses the new "table add" command. The production environment is an active/passive setup. In the other environments its just containing of a single box.

 

 

 

The command used is:

 

table add -subtable $sub-tableName $client_id $sessionValue 1140 43200

 

 

 

In the production environment the table entries added by the command is not disappearing after the timeout value. This works in the other environments. Can anyone explain this behaviour? Is there som special setting for the table command to behave correctly in an active/passive setup?

 

 

 

 

Kind regards

 

Helge

 

 

 

application delivery
dev
devops
iRules

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  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Feb 23, 2011
    Hi Helge,

     

     

    Do you have the HA configured correctly? See SOL12370 for details on why this is necessary:

     

     

     

    sol12370: Memory usage on an active unit may significantly increase when mirroring is enabled and the standby unit is offline

     

    http://support.f5.com/kb/en-us/solutions/public/12000/300/sol12370.html

     

     

    Note: Since the iRule session command utilizes the persistence table, the information in this Solution also applies to iRules that use the session command.

     

     

     

    Aaron
  • HT_35873's avatar
    HT_35873
    Icon for Nimbostratus rankNimbostratus
    Feb 23, 2011
    Hi Aron,

     

     

    Thanks for the quick reply. I will look into that.

     

     

     

    Kind regards

     

    Helge

     

  • HT_35873's avatar
    HT_35873
    Icon for Nimbostratus rankNimbostratus
    Feb 24, 2011
    Hi Aron, Are you aware of any bigpipe cmmands to delete all subtable entries or session state? Or do i need to do it in the rule init? Kind regards Helge
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Feb 24, 2011
    I think you either need to restart TMM (which will kill all active connections until TMM comes back up / the unit fails over) or manually remove them in an iRule event other than RULE_INIT. You can use 'table delete -subtable $tname -all' to do this. Note that the iRule which deletes the subtable entries does not need to be the same one that set them or on the same virtual server.

     

     

    Aaron