[jira] [Created] (HDFS-7712) Switch blockStateChangeLog to use slf4j

[Andrew Wang (JIRA)]

Andrew Wang created HDFS-7712:
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             Summary: Switch blockStateChangeLog to use slf4j
                 Key: HDFS-7712
                 URL: https://issues.apache.org/jira/browse/HDFS-7712
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
    Affects Versions: 2.7.0
            Reporter: Andrew Wang
            Assignee: Andrew Wang
            Priority: Minor


As pointed out in HDFS-7706, updating blockStateChangeLog to use slf4j will 
save a lot of string construction costs.



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