Wei-Chiu Chuang created HADOOP-12838:
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Summary: Add metrics for LDAP group mapping resolution time
Key: HADOOP-12838
URL: https://issues.apache.org/jira/browse/HADOOP-12838
Project: Hadoop Common
Issue Type: Improvement
Affects Versions: 2.8.0
Reporter: Wei-Chiu Chuang
Assignee: Wei-Chiu Chuang
LDAP group mapping needs to communicate with a LDAP server. Sometime it takes
tremendous time to communicate and resolve group mapping. As a result, system
performs degrades and it is not obvious why it goes worse without an in-depth
investigation.
Let's add a Metrics for LDAP group mapping and log the resolution time to help
debugging.
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