Forum Discussion

Shoaib_020's avatar
Shoaib_020
Icon for Nimbostratus rankNimbostratus
Nov 29, 2023
Solved

Need help in finding pools with only only one pool member

Hello,

I need help in finding pools with only only one pool member. Please let me know if this can be done via any command or script.

  • I would start with:

    From cil - in bash...

    tmsh list ltm pool all members

    and start my filter with

     tmsh list ltm pool all members |egrep 'ltm pool|address' 

    if you dont need/use  ipv6

    tmsh list ltm pool all members |egrep 'ltm pool|address' |egrep -v 'any6'

    that should get you close

  • You can achieve this using a simple bash script. For example:

    # Author: Michael Saleem
    # Filename: f5-list-pools-based-on-member-quantity.sh
    # Purpose:  This script will list all pools containing a specified number of pool members
    
    #!/bin/bash
    
    POOL_MEMBER_QUANTITY=1
    
    POOLS=$(tmsh list ltm pool one-line | awk '{print $3}')
    
    for POOL in $POOLS; do
    POOL_MEMBER_COUNT=$(tmsh list ltm pool $POOL one-line | awk -F':' '{print NF -1}';)
    
    if [ "$POOL_MEMBER_COUNT" = "$POOL_MEMBER_QUANTITY" ]
        then echo $POOL
    fi
    done

     

7 Replies

  • I would start with:

    From cil - in bash...

    tmsh list ltm pool all members

    and start my filter with

     tmsh list ltm pool all members |egrep 'ltm pool|address' 

    if you dont need/use  ipv6

    tmsh list ltm pool all members |egrep 'ltm pool|address' |egrep -v 'any6'

    that should get you close

    • Shoaib_020's avatar
      Shoaib_020
      Icon for Nimbostratus rankNimbostratus

      Hello,

       

      I am getting error as below:

      Syntax Error: "egrep", grep is currently the only filter that is supported

      • PhatANhappy's avatar
        PhatANhappy
        Icon for MVP rankMVP

        need  to be in bash for egrep to work - 


        the line also includes "tmsh" as a precurser - execute the command in that shell.

         

  • You can achieve this using a simple bash script. For example:

    # Author: Michael Saleem
    # Filename: f5-list-pools-based-on-member-quantity.sh
    # Purpose:  This script will list all pools containing a specified number of pool members
    
    #!/bin/bash
    
    POOL_MEMBER_QUANTITY=1
    
    POOLS=$(tmsh list ltm pool one-line | awk '{print $3}')
    
    for POOL in $POOLS; do
    POOL_MEMBER_COUNT=$(tmsh list ltm pool $POOL one-line | awk -F':' '{print NF -1}';)
    
    if [ "$POOL_MEMBER_COUNT" = "$POOL_MEMBER_QUANTITY" ]
        then echo $POOL
    fi
    done

     

  •  

    Hi Shoaib,

     

    I always use the following command in TMSH mode if writing or executing shell scripts are not allowed in client environments:

    show ltm virtual all-properties detail | grep -i -e 'LTM\|Destination'

    Copy all the output in excel heet and conver the TEXT to COLUMN feature , it will give the details of all the pools and from there you can find the pools with 1 members. maybe not exactly what you are looking for but it helps in many ways .

     

    HTH

    🙏