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https://issues.apache.org/jira/browse/HADOOP-13605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-13605:
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Status: Open (was: Patch Available)
> Clean up FileSystem javadocs, logging; improve diagnostics on FS load
> ---------------------------------------------------------------------
>
> Key: HADOOP-13605
> URL: https://issues.apache.org/jira/browse/HADOOP-13605
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Attachments: HADOOP-13605-004.patch, HADOOP-13605-005.patch,
> HADOOP-13605-branch-2-001.patch, HADOOP-13605-branch-2-002.patch,
> HADOOP-13605-branch-2-003.patch
>
>
> We can't easily debug FS instantiation problems as there isn't much detail in
> what was going on.
> We can add more logging, but cannot simply switch {{FileSystem.LOG}} to SLF4J
> —the class is used in too many places, including tests which cast it.
> Instead, add a new private SLF4J Logger, {{LOGGER}} and switch logging to it.
> While working in the base FileSystem class, take the opportunity to clean up
> javadocs and comments
> # add the list of exceptions, including indicating which base classes throw
> UnsupportedOperationExceptions
> # cut bits in the comments which are not true
> The outcome of this patch is that IDEs shouldn't highlight most of the file
> as flawed in some way or another
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