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From "Gour Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5944) Native services AM should remain up if RM is down
Date Wed, 30 Nov 2016 19:56:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-5944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709598#comment-15709598

Gour Saha commented on YARN-5944:

[~billie.rinaldi] do we have to set anything to this config _*yarn.client.failover-max-attempts*_?
Seems like it is a client specific property but when HA is enabled it can override _yarn.resourcemanager.connect.max-wait.ms_.
So not sure what we should do to it.

Here is the description from https://hadoop.apache.org/docs/r2.7.1/hadoop-yarn/hadoop-yarn-common/yarn-default.xml
When HA is enabled, the max number of times FailoverProxyProvider should attempt failover.
When set, this overrides the yarn.resourcemanager.connect.max-wait.ms. When not set, this
is inferred from yarn.resourcemanager.connect.max-wait.ms.

Should we explicitly clear the value of _yarn.client.failover-max-attempts_ in Slider AM?

> Native services AM should remain up if RM is down
> -------------------------------------------------
>                 Key: YARN-5944
>                 URL: https://issues.apache.org/jira/browse/YARN-5944
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Billie Rinaldi
>            Assignee: Billie Rinaldi
>         Attachments: YARN-5944-yarn-native-services.001.patch
> If the RM is down, the native services AM will retry connecting the to RM until yarn.resourcemanager.connect.max-wait.ms
has been exceeded. At that point, the AM will stop itself. For a long running service, we
would prefer the AM to stay up while the RM is down.

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