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basithr_150707's avatar
basithr_150707
Icon for Nimbostratus rankNimbostratus
Apr 15, 2014

Cluster reboots VMs but F5 was still routing traffic to the down nodes

Hi,

 

I have VM web servers running on a Dell PowerEdge M620 with VMware ESXi 5.5, the host was apparently running short on memory and decided to reboot servers. When the server were rebooted F5 did not detect that the nodes were down and kept routing traffic to these nodes, I had to manually take the nodes out of the pool. Any ideas why F5 did not re-route traffic? Is there an issue with ESXi rebooting the nodes unexpectedly?

 

Thank you!

 

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5 Replies

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  • JPV_131616's avatar
    JPV_131616
    Icon for Cirrus rankCirrus
    Apr 15, 2014

    what type of monitor is being used on the pool?

     

    Also do you have the reselect option enabled on service down for the pool?

     

  • basithr_150707's avatar
    basithr_150707
    Icon for Nimbostratus rankNimbostratus
    Apr 17, 2014

    There are no health monitors set up for the pools but there are health monitors set up for the nodes. I relatively new to F5 so I am not sure where to check if the reselect option is enabled.