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Forum Discussion

cawong23_136311's avatar
cawong23_136311
Icon for Altostratus rankAltostratus
Nov 29, 2016

Default monitor on node (node list shows unknown) caused pool monitor down.

Hi all,

 

I found that the node can set default monitor for nodes, however once i set it, it will cause the pool monitor down... I removed the default monitor and then the pool becomes normal again.

 

Could you please advise?

 

Thanks in advance!

 

BIG-IP
LTM
security

2 Replies

  • jaikumar_f5's avatar
    jaikumar_f5
    Icon for Noctilucent rankNoctilucent
    Nov 29, 2016

    The default monitor associated with nodes are ICMP. And the pools will also have some monitor associated with it, usually if the services is running - the member will be marked up and inturn marking the pool available.

     

    Removing the default monitor should not cause any impact on the pool, because pool also has a monitor configured in it.

     

    Can you please share your config, showing what monitor is configured in pool.

     

  • KeesvandenBos's avatar
    KeesvandenBos
    Icon for MVP rankMVP
    Nov 29, 2016

    What is the status of the node when you enable the default node monitor??

     

    The member status in a pool is a combination of the pool monitor and the node monitor. Both need to be up to mark a pool member as up.

     

    In older software versions the default node monitor was set to icmp, newer versions don't have a default node monitor.

     

    My advice would be to not use a monitor on the node's.

     

    Cheers,

     

    Kees