We currently have a cleanup script that runs monthly that looks for pools with no members in DNS, removes them, deletes the pools, then delete the VIP. My colleague was able to get the removal of the nodes from the pool, but I am seeing that the script is not picking up the “empty” pools with no members. I would like to figure out how to find pools with no members in there (count of 0) so the script can pick it up and delete it.
I found the following commands, but this still shows pools with “downed” members
Started with this:
tmsh show ltm pool field-fmt | grep -E “ltm pool|available-members 0” --after-context 1 | grep -v ‘total-members’
refined it to no-members
tmsh show ltm pool field-fmt | grep -E “ltm pool|available-members 0” --after-context 1 | grep -v ‘no-members’
But it is still showing me pools with with members. I am sorta new to this and running out of ideas! If anyone could help, that would be great! Thanks
Hey,
You can use the following command to show the pools without members
tmsh show ltm pool field-fmt | grep -B 2 “available-member-cnt 0” | grep “ltm pool”
you can tweak it to your needs
you should chekc which line the available-member-cnt is at and change the -B if needed
Using that, i was still able to pull pools with members in the pool.
Walking this backwards, I think I need to find the “total members” and queue my search on that. The available members or min active will show pools with members for whatever reason.
Using your search, here is a pool with a member in the pool
Ltm::Pool: pzentws.dev.cardinalhealth.net-tcp7443-pool
---------------------------------------------------------------------------------------
Status
Availability : offline
State : enabled
Reason : The children pool member(s) are down
Monitor : https-cah-default
Minimum Active Members : 0
Priority Groups : 0/0/0 (highest/current/lowest)
Current Active Members : 0
Available Members : 0
Total Members : 1
Total Requests : 0
Current Sessions : 0
Pools with no members.
Ltm::Pool: ecm3pl.qa.cardinalhealth.net-tcp3212-pool
---------------------------------------------------------------------------------------
Status
Availability : offline
State : enabled
Reason :
Monitor : tcp-cah-default
Minimum Active Members : 0
Priority Groups : 0/0/0 (highest/current/lowest)
Current Active Members : 0
Available Members : 0
Total Members : 0
Total Requests : 0
Current Sessions : 0
Yeah seems like the issue,
We went with available-members but seems like Total Members are more accurate
adding new command you can run tmsh show ltm pool | grep -B 11 “Total Members : 0” | grep “Ltm::Pool”
please know you will need to update the exact spacing you have in the Total Members to the actual number added how it showed up on mine cli
