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Ask Data Process Failed To Start Up After Making Some Topology Change


Published: 25 Feb 2021
Last Modified Date: 25 Feb 2021

Issue

Ask Data process failed to start up after some topology change is made, for example adding a new node on Tableau Server

Environment

  • Tableau Server

Resolution

Use [netsh interface ipv6 show prefixpolicies] command to check the current precedence of multiple IP addresses, and use [netsh int ipv6 set prefixpolicy] command to modify the precedence.

Below is an example where IPv6 is preferred over IPv4.
Precedence   Label  Prefix
----------  -----  --------------------------------
        50      0  ::1/128
        40      1  ::/0
        35      4  ::ffff:0:0/96
        30      2  2002::/16
         5      5  2001::/32
         3     13  fc00::/7
         1     11  fec0::/10
         1     12  3ffe::/16
         1      3  ::/96

To change the precedence to make sure IPv4 is preferred, you need to execute the following steps:
    a) Run [tsm stop] command to stop Tableau Server.
    b) Run the following commands to adjust precedences of IP addresses.
          netsh int ipv6 set prefixpolicy ::ffff:0:0/96 50 0
          netsh int ipv6 set prefixpolicy ::1/128 40 1
          netsh int ipv6 set prefixpolicy ::/0 30 2
          netsh int ipv6 set prefixpolicy  2002::/16 20 3
          netsh int ipv6 set prefixpolicy  2001::/32 5 5
          netsh int ipv6 set prefixpolicy  ::/96 1 4
    c) Reboot OS to restart Tableau Server administrative services.
    d) Run [tsm start] command to start up Tableau Server.

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Cause

IPv6 address is preferred to IPv4 address.
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