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https://issues.apache.org/jira/browse/IMPALA-13817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17932743#comment-17932743
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ASF subversion and git services commented on IMPALA-13817:
----------------------------------------------------------

Commit 28686165d089bef85c76fce31ac1135e508b1cb2 in impala's branch 
refs/heads/master from Abhishek Rawat
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=28686165d ]

IMPALA-13817: Impala fails to start if 'ai_endpoint' and
'ai_additional_platforms' are not set in the right order

The 'ai_endpoint' flag has a validator which depends on
'ai_additional_platforms'. This could result in failure if the
'ai_additional_platforms' is not set before 'ai_endpoint' in the
flagfile.

This patch simplifies the validator for 'ai_endpoint' flag and moves
the supported platforms check to ExecEnv::Init.

Testing:
- Added unit tests for 'is_api_endpoint_supported' function.

Change-Id: I16480564ce434513ab73b531c03e1d229dac2dd6
Reviewed-on: http://gerrit.cloudera.org:8080/22567
Reviewed-by: Yida Wu <wydbaggio...@gmail.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>


> Impala fails to start if 'ai_additional_platforms' is not set before 
> 'ai_endpoint'
> ----------------------------------------------------------------------------------
>
>                 Key: IMPALA-13817
>                 URL: https://issues.apache.org/jira/browse/IMPALA-13817
>             Project: IMPALA
>          Issue Type: Bug
>            Reporter: Abhishek Rawat
>            Priority: Critical
>
> 'ai_endpoint' flag has a validator function which also depends on 
> 'ai_additional_platforms'. As a result the order of setting these flags in 
> the flag file matter and since the order of flags in the flag file cannot be 
> always guaranteed this could result in Impala failing to start up. Ideally, 
> the validation function should not depend on two flags.



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