question Re: CDP upgrade from CDH in Support Questions

CDP upgrade from CDH

mohammad_shamim — Wed, 24 Aug 2022 21:50:29 GMT

Dear Friends,

I am upgrading CDH to CDP and getting below error while upgrading. Please help.

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Converting configuration parameters

Failed due to java.lang.IllegalStateException: HS2 role count in Hive and Hive on Tez services should match.

Failed due to java.lang.IllegalStateException: HS2 role count in Hive and Hive on Tez services should match
java.lang.IllegalStateException: HS2 role count in Hive and Hive on Tez services should match.

Re: CDP upgrade from CDH

Babasaheb — Thu, 25 Aug 2022 17:19:44 GMT

@mohammad_shamim

There is no other workaround for "HS2 role count in Hive and Hive on Tez services should match" other than making the role counts match. You need to add as many HS2 instances in HiveOnTez services as there are in Hive service prior the upgrade. The upgrade process requires this so that configuration from cdh HS2 instances can be mapped to cdp HS2 instances in a 1-to-1 fashion.

Can you please try adding Roles?

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Re: CDP upgrade from CDH

smruti — Wed, 31 Aug 2022 12:05:23 GMT

@mohammad_shamim Did you have Hive HA configured in CDH cluster, in that case, you need to make sure that there are equal number of HS2 instances created in the CDP cluster, because without that HA cannot be attained. Also, make sure that there is no Hiveserver2 instance created under "Hive" service in CDP. It should only be present under Hive on Tez service.