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https://issues.apache.org/jira/browse/SENTRY-1919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153882#comment-16153882
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Sergio Peña commented on SENTRY-1919:
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Should we care about sending deltas as well? If the NN-1 already has the
current snapshot, then the next time will request deltas while NN-2 is in the
middle of a full snapshot update.
> Sentry should prevent two snapshots from being sent to HDFS
> -----------------------------------------------------------
>
> Key: SENTRY-1919
> URL: https://issues.apache.org/jira/browse/SENTRY-1919
> Project: Sentry
> Issue Type: Bug
> Components: Sentry
> Affects Versions: 2.0.0
> Reporter: Alexander Kolbasov
> Assignee: Sergio Peña
>
> When HDFS sync and HDFS HA is enabled it could be possible that two NameNodes
> will both ask for the full snapshot at the same time. This can double the
> size of memory needed to serve snapshot and should be prevented.
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