[jira] [Commented] (AMBARI-24582) Ambari Alert - HiveServer2 Process - False negative in Certain Scenarios

["Thejas M Nair (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-24582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685968#comment-16685968 ] 

Thejas M Nair commented on AMBARI-24582:
----------------------------------------

[~jonathan.hurley]
AFAIK, Ambari hasn't had a mechanism to specify username/password to connection HS2, when HS2 is using username/password based authentication.
So it will fail to connect and do a positive healthcheck in such scenarios.
Is this positive check being enabled only for non password based authentication cases ?

> Ambari Alert - HiveServer2 Process - False negative in Certain Scenarios
> ------------------------------------------------------------------------
>
>                 Key: AMBARI-24582
>                 URL: https://issues.apache.org/jira/browse/AMBARI-24582
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Jonathan Hurley
>            Assignee: Jonathan Hurley
>            Priority: Critical
>              Labels: pull-request-available
>             Fix For: 2.7.3
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> The Hive Alert & Hive Service Check both share the same logic from {{hive_check}} which attempts to execute something similar to:
> {code}
> beeline -u '%s' %s -e ';' 2>&1| awk '{print}' | grep -i -e 'Connection refused' -e 'Invalid URL'"
> {code}
> This type of negative condition checking misses a lot of failures, such as permission problems and SSL/JKS problems. Instead, we should change this to a positive check.
> - Add the {{-n}} option to specify the hive user since the hive warehouse inode is protected. This option is ignored for Kerberos
> - Change the grep to look for positive conditions
> -- {code}
> Connecting to jdbc:hive2://c7403.ambari.apache.org:10000/;transportMode=binary
> Connected to: Apache Hive (version 3.0.0.3.0.0.0-1553)
> Driver: Hive JDBC (version 3.0.0.3.0.0.0-1553)
> Transaction isolation: TRANSACTION_REPEATABLE_READ
> Beeline version 3.0.0.3.0.0.0-1553 by Apache Hive
> Closing: 0: jdbc:hive2://c7403.ambari.apache.org:10000/;transportMode=binary
> {code}



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