Issue with upgrading custom service via Ambari

[#1]

When I'm trying to test an (express) upgrade of a stack including my custom component I get the following error:

Last Service Check should be more recent than the last configuration change for the given service      

Reason: Unexpected server error happenedFailed on: 

As you can see, it doesn't tell me which component. Anyhow, as I'm having my own component installed with the stack I suppose it's my own.

My colleague now pointed out that it's maybe because I do not have a "Config" tab in my component. Could this be the issue?

To shortly explain what my service does: I want to be able to have 2+ RegionServers on one host, thus I just copy the configuration from the original RegionServer and just do some changes within two configuration files before the component gets started. That's why I do not need any configuration within Ambari itself.

Hopefully somebody can explain a bit about my issue. Thanks

[#2 · Accepted solution]

If you are sure its related to your Custom Service ,

You can skip the service checks of Ambari before upgrade by changing the configuration in ambari.properties :

cd /etc/ambari-server/conf

vi ambari.properties

check for the below configurations (add if doesnt exist):

skip.service.checks=true -- if you want to skip service checks
stack.upgrade.bypass.prechecks=true 

Restart the ambari server

Perform the steps.

It has to work fine.

Let me know if it works

[#3]

Thanks for your answer @Akhil S Naik.

It seems that it really was the issue with the config. I now changed my service to contain a config, although it's not used, but I don't have the issue anymore.

Nevertheless, I didn't test the ambari-server configuration change, as it would have only been a workaround for me.