[jira] [Updated] (AMBARI-8173) Kafka does not provide any default value for kafka.log.dirs and creates confusion / poor UX

["Yusaku Sako (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-8173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yusaku Sako updated AMBARI-8173:
--------------------------------
    Attachment: AMBARI-8173.patch

> Kafka does not provide any default value for kafka.log.dirs and creates confusion / poor UX
> -------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-8173
>                 URL: https://issues.apache.org/jira/browse/AMBARI-8173
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-agent, ambari-web, stacks
>    Affects Versions: 1.7.0
>            Reporter: Yusaku Sako
>            Assignee: Yusaku Sako
>            Priority: Critical
>             Fix For: 1.7.0
>
>         Attachments: AMBARI-8173.patch
>
>
> Kafka does not provide any default value for log.dirs property.
> The user is prompted to enter a path (or paths) there.
> If the user enters paths that kafka user cannot create, then Kafka Broker fails to come up and Kafka Service Check fails Once the user goes to the dashboard, most of the services show up red as the start operation for other components were canceled . 
> There are several problems with this.
> 1. Most users will install the full stack including Kafka. The user does not know what directory/directories to put there (and does not want to be concerned about that at install time). We specify default directories for all other components so we should do the same.
> 2. If we leave this blank, then the user is force to enter something. I put /kafka. However, Ambari agent does not try to create/chown/chmod, so Kafka tries to create the directory as "kafka" user and this fails and you end up getting a dashboard with a bunch of services down. Even if we provide some default and the user changes it, the same failure occurs. So Ambari agent should automatically take care of directory creation/chown/chmod.



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