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unavailable's avatar
unavailable
Icon for Cirrus rankCirrus
Jan 11, 2024
Solved

Overload Cpu

Hello everyone, i have been migrating the configuration beetwen F5 device from old device to another one i2600 ver 16.1.4. I have verified that the device does not responding as expected and i have...
application delivery
overload cpu
  • PhatANhappy's avatar
    PhatANhappy
    Jan 11, 2024

    that could be the issue.   definatly something to look at.
    i would lean more towards using the top command to find out what is causing the issue.
    With ASM -  i would further be concerned about spinning disks vs. SSD which will show up as a  'wa' in the top stastics.

  • Nikoolayy1's avatar
    Nikoolayy1
    Jan 11, 2024

    PhatANhappy  mentioned about too small resources and that this is control plane utlization not data plane and the ''top'' will review if it is the bug or another process. About the ''wa'' that is something I would also renember from this discussion.

     

    About the Analysis plane this in most cases is the ASM/AWAF policy builder learning, so also better also switch it off The BIG-IP ASM device shows high CPU usage in Analysis plane (f5.com) but this is could be still related to not enough resources for LTM + AWAF.

unavailable's avatar
unavailable
Icon for Cirrus rankCirrus
Jan 11, 2024

Hi PhatANhappy,

many thanks for your fast reply.
 At the momemt there are 115 virtual servers configured on load balancer, there are 2 modules provisioned Ltm/Asm  both have been configuring with "nominal" provisioning.
The hardware type is i2600, may be the problem could be refer to

Bug ID 1060393: Extended high CPU usage caused by JavaScript Obfuscator  ?

Rgds,

 

  • PhatANhappy's avatar
    PhatANhappy
    Icon for MVP rankMVP
    Jan 11, 2024

    that could be the issue.   definatly something to look at.
    i would lean more towards using the top command to find out what is causing the issue.
    With ASM -  i would further be concerned about spinning disks vs. SSD which will show up as a  'wa' in the top stastics.

  • Nikoolayy1's avatar
    Nikoolayy1
    Icon for MVP rankMVP
    Jan 11, 2024

    PhatANhappy  mentioned about too small resources and that this is control plane utlization not data plane and the ''top'' will review if it is the bug or another process. About the ''wa'' that is something I would also renember from this discussion.

     

    About the Analysis plane this in most cases is the ASM/AWAF policy builder learning, so also better also switch it off The BIG-IP ASM device shows high CPU usage in Analysis plane (f5.com) but this is could be still related to not enough resources for LTM + AWAF.