[MAPREDUCE-895] FileSystem::ListStatus will now throw FileNotFoundException, MapRed needs updated - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.21.0
Component/s: None
Labels:
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Hadoop Flags:

Incompatible change, Reviewed
Release Note:

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The semantics for dealing with non-existent paths passed to FileSystem::listStatus() were updated and solidified in ~~HADOOP-6201~~ and ~~HDFS-538~~. Existing code within MapReduce that relied on the previous behavior of some FileSystem implementations of returning null has been updated to catch or propagate a FileNotFoundException, per the method's contract.

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The semantics for dealing with non-existent paths passed to FileSystem::listStatus() were updated and solidified in HADOOP-6201 and HDFS-538 . Existing code within MapReduce that relied on the previous behavior of some FileSystem implementations of returning null has been updated to catch or propagate a FileNotFoundException, per the method's contract.

Description

~~HADOOP-6201~~ (and ~~HDFS-538~~) determined the semantics of FileSystem::ListStatus is not correct and that the actual file system class vary in their implemenations, with some throwing an exception and some returning null. Fixing this will require adjusting code that calls this method.

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MAPREDUCE-895.patch
21/Aug/09 19:03
6 kB
Jakob Homan

Issue Links

depends upon

HDFS-538 DistributedFileSystem::listStatus incorrectly returns null for empty result sets

Closed

HADOOP-6201 FileSystem::ListStatus should throw FileNotFoundException

Closed

Activity

People

Assignee:: Jakob Homan

Reporter:: Jakob Homan

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 21/Aug/09 01:01

Updated:: 02/May/13 02:29

Resolved:: 21/Aug/09 22:51