TSA/db2haicu error and resolution

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Especially with TSA and db2haicu, sometimes you see an error, and you have a bag of tricks that you try, even though you don’t understand exactly why they work. In this case, I had a brand-spanking-new server, with DB2 installed the very same day, and no matter what I did, db2haicu would fail on creating the domain with this error message in the diag.log:

Line # : 9386---2632-044 The domain cannot be created due to the following errors that were detected while harvesting information from the target nodes:
dbserver1.adomain.com: 2632-075 This node has a duplicate IP address (xxx.xxx.xxx.xxx) with node dbserver2.adomain.com. The duplicate address will not be used. Correct the network configuration on one of the nodes or use -c option to perform the operation.

On looking at an ifconfig, we saw, in part:

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:xxx.xxx.xxx.xxx  Bcast:xxx.xxx.xxx.yyy  Mask:
          inet6 addr: aaaa::aaa:aa:aaaa:a/64 Scope:Link
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:7239 (7.0 KiB)

So the Client’s DBA and I tried everything I could possibly think of before going back to the network/server team. The last thing on my list to try was uninstalling/re-installing the TSA software, as I described in this post: Using TSA/db2haicu to Automate Failover Part 3: Testing, Ways Setup can go Wrong and What to do (section “Other Failures”, #3)

And that worked. Again, don’t know why since we had just installed the server the same day, but in case someone sees a similar issue, I thought I’d put the solution out there.

Ember is always curious and thrives on change. She has built internationally recognized expertise in IBM Db2, and is now pivoting to focus on learning MySQL. Ember shares both posts about her core skill set and her journey learning MySQL. Ember lives in Denver and work from home

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