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https://issues.apache.org/jira/browse/HADOOP-6499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12802474#action_12802474
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Owen O'Malley commented on HADOOP-6499:
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This is hard to change in a compatible way. In general returning a boolean
should be avoided because it provides no information for the user about what
happened.
Please look at the FileContext to see if that meets your needs.
> Standardize when we return false and when we throw IOException in FileSystem
> API
> --------------------------------------------------------------------------------
>
> Key: HADOOP-6499
> URL: https://issues.apache.org/jira/browse/HADOOP-6499
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Zheng Shao
>
> Currently most of the methods in Hadoop FileSystem has 2 ways of returning
> errors:
> 1. Return false
> 2. throw an IOException
> We should standardize what should happen in what case, so that the caller can
> retry/fail accordingly.
> The standard can be added to javadoc of FileSystem, then we need to verify
> all FileSystem implementation follow the same standard.
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