[MR-279] [Security] AM should not be able to abuse container tokens for
repetitive container launches
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Key: MAPREDUCE-2743
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2743
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Reporter: Vinod Kumar Vavilapalli
Assignee: Vinod Kumar Vavilapalli
Fix For: 0.23.0
ApplicationMaster should not be able to store container tokens and use the same
set of tokens for repetitive container launches. The possibility of such abuse
is there in the current code, we need to fix this.
A cache of recent containers on the NM along with container token expiry time
should solve this.
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