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"The fix is to persist the ATS v1.0 configs even if ATS is not present. The 
service checks will still fail, but the user can then add ATS after EU is done."
Are we ok with service checks failing during EU or this a temporary fix for 
now? Can we do something to notify the user and skip service checks for Hive in 
EU in this setup?

- Jayush Luniya


On Jan. 22, 2016, 7:02 p.m., Alejandro Fernandez wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/42667/
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> 
> (Updated Jan. 22, 2016, 7:02 p.m.)
> 
> 
> Review request for Ambari, Dmytro Grinenko, Dmitro Lisnichenko, Jayush 
> Luniya, Mahadev Konar, Nate Cole, and Swapan Shridhar.
> 
> 
> Bugs: AMBARI-14779
>     https://issues.apache.org/jira/browse/AMBARI-14779
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Steps
> 
> * Install HDP 2.1 cluster with ambari 2.2.1 (HFDS, YARN, ZK, Hive)
> * Kerberize the cluster, this will remove ATS
> * Bootstrap the cluster with versions
> * Install HDP 2.3 and perform EU
> * Run Hive service check after EU is complete
> 
> 
> In HDP 2.1, YARN ATS v1.0 did not support kerberos, so kerberizing the 
> cluster removed that component. This means that EU from HDP 2.1 to 2.3 cannot 
> persist the ATS v1.0 configs and instead adds the ATS v1.5 configs that 
> default to stack HDP 2.3. For that reason, Hive Service Check fails.
> 
> The fix is to persist the ATS v1.0 configs even if ATS is not present. The 
> service checks will still fail, but the user can then add ATS after EU is 
> done.
> 
> 
> Diffs
> -----
> 
>   
> ambari-server/src/main/resources/stacks/HDP/2.1/upgrades/nonrolling-upgrade-2.3.xml
>  9f0458b 
>   ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/config-upgrade.xml 
> 9e53c12 
> 
> Diff: https://reviews.apache.org/r/42667/diff/
> 
> 
> Testing
> -------
> 
> Verified during an EU from HDP 2.1 to 2.3 with ATS removed.
> 
> 
> Thanks,
> 
> Alejandro Fernandez
> 
>

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