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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1666) Make admin refreshNodes work across RM failover
Date Wed, 19 Feb 2014 00:37:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-1666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13904876#comment-13904876

Xuan Gong commented on YARN-1666:

bq. LocalConfigurationProvider: Use the bootstrapConf for looking into class-path. Creating
configs is not inexpensive!


bq. In refreshNodes(), you need to create yarn-conf as new YarnConfiguration(false)
Similarly in refreshSuperUserGroupsConfiguration() and all the other refresh methods. You
said "It is fine. Because we will load related configuration later by using addResource(Configuration)
which will reload and overwrite all the properties.". That is not true if we are not overwriting
all properties. We need to start on a clean slate.

Make sense, but we can not do new YarnConfiguration(false). I am using new Configuration(false)
for all the cases

bq. HostsFileReader: Switch the includes and excludes sets only after both are successfully


> Make admin refreshNodes work across RM failover
> -----------------------------------------------
>                 Key: YARN-1666
>                 URL: https://issues.apache.org/jira/browse/YARN-1666
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-1666.1.patch, YARN-1666.2.patch, YARN-1666.2.patch, YARN-1666.3.patch,
YARN-1666.4.patch, YARN-1666.4.patch, YARN-1666.5.patch

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