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Posted to hdfs-dev@hadoop.apache.org by "Chao Sun (JIRA)" <ji...@apache.org> on 2017/10/16 21:11:00 UTC

[jira] [Created] (HDFS-12669) Implement toString() for EditLogInputStream

Chao Sun created HDFS-12669:
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             Summary: Implement toString() for EditLogInputStream
                 Key: HDFS-12669
                 URL: https://issues.apache.org/jira/browse/HDFS-12669
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
            Reporter: Chao Sun
            Priority: Minor


Currently {{EditLogInputStream}} has {{getName()}} but doesn't implement {{toString()}}. The latter could be useful in debugging. Currently it just print out messages like:

{code}
2017-10-16 20:41:13,456 INFO org.apache.hadoop.hdfs.server.namenode.FSImage: Reading org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream@1eb6749b expecting start txid #8137
{code}



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