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https://issues.apache.org/jira/browse/YARN-10212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17074847#comment-17074847
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Jonathan Hung commented on YARN-10212:
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[~BilwaST] user's default max AM attempts is how many AM attempts they get if
they don't set individualMaxAppAttempts on client side.
I am proposing changing the code snippet above to something like:
{noformat}
int globalMaxAppAttempts =
conf.getInt(YarnConfiguration.GLOBAL_RM_AM_MAX_ATTEMPTS,
conf.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS));{noformat}
If GLOBAL_RM_AM_MAX_ATTEMPTS is unset, it will fall back to current behavior.
But if GLOBAL_RM_AM_MAX_ATTEMPTS is set to something higher (e.g. 4), then if
user does not set individualMaxAppAttempts on client side, their app's number
of attempts will still use RM_AM_MAX_ATTEMPTS, but user can set
individualMaxAppAttempts to RM_AM_MAX_ATTEMPTS < individualMaxAppAttempts <=
GLOBAL_RM_AM_MAX_ATTEMPTS if they like.
> Create separate configuration for max global AM attempts
> --------------------------------------------------------
>
> Key: YARN-10212
> URL: https://issues.apache.org/jira/browse/YARN-10212
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Jonathan Hung
> Assignee: Bilwa S T
> Priority: Major
>
> Right now user's default max AM attempts is set to the same as global max AM
> attempts:
> {noformat}
> int globalMaxAppAttempts = conf.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
> YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS); {noformat}
> If we want to increase global max AM attempts, it will also increase the
> default. So we should create a separate global AM max attempts config to
> separate the two.
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