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https://issues.apache.org/jira/browse/YARN-4843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15204177#comment-15204177
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Junping Du commented on YARN-4843:
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Thanks [~leftnoteasy] for filing a JIRA to address this issue. I think we may
have to add a new field instead of change directly on existing field or we will
have incompatible issues.
> [Umbrella] Revisit YARN ProtocolBuffer int32 usages that need to upgrade to
> int64
> ---------------------------------------------------------------------------------
>
> Key: YARN-4843
> URL: https://issues.apache.org/jira/browse/YARN-4843
> Project: Hadoop YARN
> Issue Type: Bug
> Components: api
> Reporter: Wangda Tan
>
> This JIRA is to track all int32 usages in YARN's ProtocolBuffer APIs that we
> possibly need to update to int64.
> One example is resource API. We use int32 for memory now, if a cluster has
> 10k nodes, each node has 210G memory, we will get a negative total cluster
> memory.
> We may have other fields may need to upgrade from int32 to int64.
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