Forum Discussion

f51's avatar
f51
Icon for Cumulonimbus rankCumulonimbus
May 31, 2017

Maintenance Mode

Hi,

 

I am working on one issue.

 

The Maintenance Mode for each machine is as: false

 

true

 

But the link does not work: https://boe.ndc.com This site can’t be reached

 

If I put maintenance mode or shut down a server I am expecting it to direct traffic another server that is not in maintenace mode

 

Configured the vip on port 443 with two servers on port 8043 and profiles added http and ssl profile. Monitor have send string as GET \"/main/system/webdev/SCADA/getTagValue?tagPath=Gateway/Maintenance%20Mode HTTP/1.0 \r\n\r\n\" Receive String "false" Receive Disable String "true"

 

Can anybody help?

 

Thanks in advance.

 

application delivery
LTM
  • jaikumar_f5's avatar
    jaikumar_f5
    Icon for Noctilucent rankNoctilucent
    Jun 01, 2017

    Confirm If I got the scenario right,

     

    You got a VIP : x.x.x.x:443 for https://boe.ndc.com

     

    VIP has its pool, within the Pool, it has its members as,

     

    PM1 -> abc:8043

     

    PM2 -> def:8043

     

    You have put the entries as false for maintenance mode, and true for Operational mode.

     

    Here I see the monitor send value is mismatching. Was it a typo error.

     

    Your servers are having /main/system/webdev_staging/SCADA/

     

    but your monitor query is /main/system/webdev/SCADA/

     

    With the above monitor, I'm sure both the pool members would be marked down, ultimately your VIP is down. Making this site can't be reached. Correct your monitor path and see if it marks the pool members as UP.

     

    Remember, even if you put maintenance string, the pool member would be marked as UP and disabled, so existing connections on this pool members are still served till its drained.