[HADOOP-12566] Add NullGroupMapping - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 2.9.0, 3.0.0-alpha1
Component/s: None
Labels:
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Hadoop Flags:

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Description

Add a NullGroupMapping for cases where user groups are not used. ShellBasedUnixGroupMapping can be used in places where latency is not important. In places like starting a container, it's worth in to avoid the extra fork and exec.

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HADOOP-12566.001.patch
15/Nov/15 15:57
4 kB
Daniel Templeton
HADOOP-12566.002.patch
16/Nov/15 21:39
4 kB
Daniel Templeton

Issue Links

blocks

YARN-4353 Provide short circuit user group mapping for NM/AM

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Assignee:: Daniel Templeton

Reporter:: Daniel Templeton

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Dates

Created:: 12/Nov/15 22:01

Updated:: 30/Aug/16 01:21

Resolved:: 23/Dec/15 22:40