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https://issues.apache.org/jira/browse/HDFS-11012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575782#comment-15575782
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Akira Ajisaka commented on HDFS-11012:
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+1 pending Jenkins.
> Unnecessary INFO logging on DFSClients for InvalidToken
> -------------------------------------------------------
>
> Key: HDFS-11012
> URL: https://issues.apache.org/jira/browse/HDFS-11012
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.5.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Minor
>
> In situations where a DFSClient would receive an InvalidToken exception (as
> described at [1]), a single retry is automatically made (as observed at [2]).
> However, we still print an INFO message into the DFSClient's logger even
> though the message is expected in some scenarios. This should ideally be a
> DEBUG level message to avoid confusion.
> If the retry or the retried attempt fails, the final clause handles it anyway
> and prints out a proper WARN (as seen at [3]) so the INFO is unnecessary.
> [1] -
> https://github.com/apache/hadoop/blob/release-2.7.0/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java#L1330-L1356
> [2] -
> https://github.com/apache/hadoop/blob/release-2.7.0/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java#L649-L651
> and
> https://github.com/apache/hadoop/blob/release-2.7.0/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java#L1163-L1170
> [3] -
> https://github.com/apache/hadoop/blob/release-2.7.0/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java#L652-L658
> and
> https://github.com/apache/hadoop/blob/release-2.7.0/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java#L1171-L1177
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