[jira] [Created] (AMBARI-3494) UI optimization: control configurations loading

["Andrii Tkach (JIRA)" <ji...@apache.org>]

Andrii Tkach created AMBARI-3494:
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             Summary: UI optimization: control configurations loading
                 Key: AMBARI-3494
                 URL: https://issues.apache.org/jira/browse/AMBARI-3494
             Project: Ambari
          Issue Type: Task
          Components: client
    Affects Versions: 1.4.2
            Reporter: Andrii Tkach
            Assignee: Andrii Tkach
             Fix For: 1.4.2
         Attachments: AMBARI-3494.patch

In different places configs are loaded for some types(core-site, mapred-site, etc.), The idea is to store them into localdb. On first load we check if there is configs for this type if no then request server and put them into localdb, otherwise check the whether tags version have changed, if so then request server as well, in rest cases we load configs from local storage. Also preserve advanced configs, since they immutable we need to load them only one time. To implement this: create configController in global controllers dir and operate storing, requesting, verifying configs via that controller.



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