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

[Arpit Agarwal (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HDFS-7712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14304368#comment-14304368
 ] 

Arpit Agarwal commented on HDFS-7712:
-------------------------------------

Location of the exception in NameNode.java:
{code}
  public static void main(String argv[]) throws Exception {
    if (DFSUtil.parseHelpArgument(argv, NameNode.USAGE, System.out, true)) {
      System.exit(0);
    }

    try {
      StringUtils.startupShutdownMessage(NameNode.class, argv,
          (org.apache.commons.logging.Log) 
LogManager.getLogger(LOG.getName()));   <<<<< Failed here.
{code}

> 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
>         Attachments: hdfs-7712.001.patch, hdfs-7712.002.patch, 
> hdfs-7712.003.patch, hdfs-7712.004.patch
>
>
> As pointed out in HDFS-7706, updating blockStateChangeLog to use slf4j will 
> save a lot of string construction costs.



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