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https://issues.apache.org/jira/browse/YARN-1879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14157751#comment-14157751
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Tsuyoshi OZAWA commented on YARN-1879:
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Thanks for your comment, Karthik. Almost done to address your comments.
{quote}
Are there cases when we don't want RetryCache enabled? IMO, we should always
use the RetryCache (no harm). If we decide on having a config, the default
should be true.
{quote}
Basically, we can enable RetryCache without harm and implemented it. One
concern is tests - on my local, lots tests fail because of following reason:
{code}
org.apache.hadoop.metrics2.MetricsException: Metrics source
RetryCache.AppMasterServiceRetryCache already exists!
{code}
I'll try to fix them in next patch by adding
{{DefaultMetricsSystem.setMiniClusterMode(true);}} to the tests.
> Mark Idempotent/AtMostOnce annotations to ApplicationMasterProtocol
> -------------------------------------------------------------------
>
> Key: YARN-1879
> URL: https://issues.apache.org/jira/browse/YARN-1879
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jian He
> Assignee: Tsuyoshi OZAWA
> Priority: Critical
> Attachments: YARN-1879.1.patch, YARN-1879.1.patch,
> YARN-1879.11.patch, YARN-1879.12.patch, YARN-1879.13.patch,
> YARN-1879.14.patch, YARN-1879.15.patch, YARN-1879.16.patch,
> YARN-1879.17.patch, YARN-1879.18.patch, YARN-1879.2-wip.patch,
> YARN-1879.2.patch, YARN-1879.3.patch, YARN-1879.4.patch, YARN-1879.5.patch,
> YARN-1879.6.patch, YARN-1879.7.patch, YARN-1879.8.patch, YARN-1879.9.patch
>
>
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