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https://issues.apache.org/jira/browse/HDFS-5191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13776686#comment-13776686
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Colin Patrick McCabe commented on HDFS-5191:
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bq. Change readZeroOptionsFree to hadoopRzOptionsFree.
fixed this and others
bq. Setting cachedEnumSet to NULL isn't required here, because
hadoopRzOptionsClearCached already does it.
removed
bq. There is still an UnsupportedOperationException thrown in the "fallback
fallback" case...
Fixed, based on your suggestion. Thanks.
> revisit zero-copy API in FSDataInputStream to make it more intuitive
> --------------------------------------------------------------------
>
> Key: HDFS-5191
> URL: https://issues.apache.org/jira/browse/HDFS-5191
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client, libhdfs
> Affects Versions: HDFS-4949
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-5191-caching.001.patch,
> HDFS-5191-caching.003.patch, HDFS-5191-caching.006.patch,
> HDFS-5191-caching.007.patch, HDFS-5191-caching.008.patch,
> HDFS-5191-caching.009.patch, HDFS-5191-caching.010.patch
>
>
> As per the discussion on HDFS-4953, we should revisit the zero-copy API to
> make it more intuitive for new users.
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