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https://issues.apache.org/jira/browse/HDFS-6151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthik Kambatla updated HDFS-6151:
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Target Version/s: 2.6.0 (was: 2.5.0)
> HDFS should refuse to cache blocks >=2GB
> ----------------------------------------
>
> Key: HDFS-6151
> URL: https://issues.apache.org/jira/browse/HDFS-6151
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: caching, datanode
> Affects Versions: 2.4.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
>
> If you try to cache a block that's >=2GB, the DN will silently fail to cache
> it since {{MappedByteBuffer}} uses a signed int to represent size. Blocks
> this large are rare, but we should log or alert the user somehow.
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