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https://issues.apache.org/jira/browse/HDFS-7431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14253457#comment-14253457
]
Hudson commented on HDFS-7431:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #43 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/43/])
HDFS-7431. log message for InvalidMagicNumberException may be incorrect.
Contributed by Yi Liu. (cnauroth: rev 5df7ecb33ab24de903f0fd98e2a055164874def5)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/protocol/datatransfer/sasl/TestSaslDataTransfer.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/sasl/InvalidMagicNumberException.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/sasl/SaslDataTransferServer.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java
> log message for InvalidMagicNumberException may be incorrect
> ------------------------------------------------------------
>
> Key: HDFS-7431
> URL: https://issues.apache.org/jira/browse/HDFS-7431
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: security
> Reporter: Yi Liu
> Assignee: Yi Liu
> Fix For: 2.7.0
>
> Attachments: HDFS-7431.001.patch, HDFS-7431.002.patch,
> HDFS-7431.003.patch
>
>
> For security mode, HDFS now supports that Datanodes don't require root or
> jsvc if {{dfs.data.transfer.protection}} is configured.
> Log message for {{InvalidMagicNumberException}}, we miss one case:
> when the datanodes run on unprivileged port and
> {{dfs.data.transfer.protection}} is configured to {{authentication}} but
> {{dfs.encrypt.data.transfer}} is not configured. SASL handshake is required
> and a low version dfs client is used, then {{InvalidMagicNumberException}} is
> thrown and we write log:
> {quote}
> Failed to read expected encryption handshake from client at .... Perhaps the
> client is running an older version of Hadoop which does not support encryption
> {quote}
> Recently I run HDFS built on trunk and security is enabled, but the client is
> 2.5.1 version. Then I got the above log message, but actually I have not
> configured encryption.
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