[ https://issues.apache.org/jira/browse/HDFS-711?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe updated HDFS-711:
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Attachment: HDFS-711.002.patch
* use -1 rather than 0 as the "don't set" value.
> hdfsUtime does not handle atime = 0 or mtime = 0 correctly
> ----------------------------------------------------------
>
> Key: HDFS-711
> URL: https://issues.apache.org/jira/browse/HDFS-711
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Affects Versions: 0.20.1
> Reporter: freestyler
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-711.001.patch, HDFS-711.002.patch
>
>
> in HADOOP/src/c++/libhdfs/hdfs.h
> The following function document is incorrect:
> /* @param mtime new modification time or 0 for only set access time in seconds
> @param atime new access time or 0 for only set modification time in seconds
> */
> int hdfsUtime(hdfsFS fs, const char* path, tTime mtime, tTime atime);
> Currently, setting mtime or atime to 0 has no special meaning. That is, file last modified
time will change to 0 if the mtime argument is 0.
> libhdfs should translate mtime = 0 or atime = 0 to the special value -1, which in HDFS
means "don't change this time."
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