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From "Xi Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-14207) Web Client Does Not Display Errors When Creating Upgrade
Date Fri, 04 Dec 2015 02:10:11 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-14207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15039596#comment-15039596
] 

Xi Wang commented on AMBARI-14207:
----------------------------------

 10255 tests complete (11 seconds)
  104 tests pending

> Web Client Does Not Display Errors When Creating Upgrade
> --------------------------------------------------------
>
>                 Key: AMBARI-14207
>                 URL: https://issues.apache.org/jira/browse/AMBARI-14207
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.2.0
>            Reporter: Xi Wang
>            Assignee: Xi Wang
>            Priority: Critical
>             Fix For: 2.2.0
>
>         Attachments: popup.png
>
>
> When creating an upgrade, an HTTP error returned (such as a 500 error) is never propagated
up to the end user. 
> STR:
> - Setup a 4-host cluster with ZK, Yarn, HDFS
> - Install clients only on the 4th host
> - Place the 4th host into maintenance mode
> - Start an upgrade
> The server will correctly throw an exception since service checks cannot be scheduled
since 4th host in maintenance mode is excluded. The error is propagated up as an HTTP 500
error:
> {code:title=HTTP/500}
> While building a service check command for YARN, there were no healthy eligible hosts:
unhealthy[], maintenance[c6404.ambari.apache.org]
> {code}
> This message should be shown to the end user. Otherwise, nothing happens in the UI and
there is no indication of an error.



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