[MAPREDUCE-6832] Counter name is truncated regardless the configuration

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved

Environment

hadoop version
Hadoop 2.6.0-cdh5.8.0
Subversion http://github.com/cloudera/hadoop -r 042da8b868a212c843bcbf3594519dd26e816e79
Compiled by jenkins on 2016-07-12T22:55Z
Compiled with protoc 2.5.0
From source with checksum 2b6c319ecc19f118d6e1c823175717b5
This command was run using /usr/lib/hadoop/hadoop-common-2.6.0-cdh5.8.0.jar

• Assignee: Unassigned
• Reporter: Vladimir Tarasov
• Created: 18/Jan/17 09:09
• Updated: 30/Jan/17 09:06

Description

For now I have hadoop job which creates counters with pretty big name. For example, the following one: stats.counters.server-name.job.job-name.mapper.site.site-name.qualifier.qualifier-name.super-long-string-which-is-not-quantity-within-standard-limits. This counter is truncated on web interface and is returned truncated by getName() method. I've found out that hadoop have limitations on the counter max name and mapreduce.job.counters.counter.name.max is for configuring this limit. So I incremented this to 500 and web interface now shows full counter name. But getName() of the counter still returns truncated name.
This seems like a bug as result of getName() call should be consistent.