[jira] [Updated] (AMBARI-4481) Add to the agent ability to download service scripts and hooks

["Dmitry Lysnichenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-4481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitry Lysnichenko updated AMBARI-4481:
---------------------------------------

    Component/s: controller

> Add to the agent ability to download service scripts and hooks
> --------------------------------------------------------------
>
>                 Key: AMBARI-4481
>                 URL: https://issues.apache.org/jira/browse/AMBARI-4481
>             Project: Ambari
>          Issue Type: Task
>          Components: agent, controller
>    Affects Versions: 1.5.0
>            Reporter: Dmitry Lysnichenko
>            Assignee: Dmitry Lysnichenko
>             Fix For: 1.5.0
>
>
> Ambari server shares some files at /var/lib/ambari-server/resources/ via HTTP. These files are accessible via url like http://hostname:8080/resources/jdk-6u31-linux-x64.bin . Among these files there are service scripts, templates and hooks. Agent has a cache of these files. Cache directory structure is similar to contents of a stacks folder at server. For example:
> $ ls /var/lib/ambari-agent/cache
> {code}
> └── stacks
>     └── HDP
>         ├── 2.0.7
>         │   ├── Accumulo
>         │   └── Flume
>         └── 2.0.8
>             ├── Accumulo
>             ├── Flume
>             └── YetAnotherService
> {code}
> If files for some service, component and stack version is not available at cache, agent downloads appropriate files on first use.



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