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https://issues.apache.org/jira/browse/HDFS-1154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe resolved HDFS-1154.
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Resolution: Duplicate
This was fixed in HDFS-3579. In that JIRA, we decided that hdfsExists should
return -1 and set errno = {{ENOENT}} when the file didn't exist. Other error
conditions will set different error codes, so you can tell them apart.
One of these days, it would be nice to clean up the return cdoes and eliminate
the tricky use of errno in the libhdfs interfaces, but that is a much bigger
(and incompatible) change.
> libhdfs::hdfsExists should return different value in case of 1. error and 2.
> file does not exist
> ------------------------------------------------------------------------------------------------
>
> Key: HDFS-1154
> URL: https://issues.apache.org/jira/browse/HDFS-1154
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Zheng Shao
> Assignee: Zheng Shao
> Attachments: HDFS-1154.1.patch
>
>
> Now the code always return "-1" for those cases. There is no way for the
> application know which is which.
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