[MAPREDUCE-5819] Binary token merge should be done once in TokenCache#obtainTokensForNamenodesInternal()

• Type: Improvement
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Component/s: security
• Labels: BB2015-05-TBR
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 02/Apr/14 22:40
• Updated: 13/Dec/17 16:31

Description

Currently mergeBinaryTokens() is called by every invocation of obtainTokensForNamenodesInternal(FileSystem, Credentials, Configuration) in the loop of obtainTokensForNamenodesInternal(Credentials, Path[], Configuration).

This can be simplified such that mergeBinaryTokens() is called only once in obtainTokensForNamenodesInternal(Credentials, Path[], Configuration).