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https://issues.apache.org/jira/browse/HDFS-7785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14968329#comment-14968329
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Chengbing Liu commented on HDFS-7785:
-------------------------------------
[~yzhangal], please refer to HDFS-7798, where the standby namenode failed to do
checkpoint.
> Improve diagnostics information for HttpPutFailedException
> ----------------------------------------------------------
>
> Key: HDFS-7785
> URL: https://issues.apache.org/jira/browse/HDFS-7785
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.6.0
> Reporter: Chengbing Liu
> Assignee: Chengbing Liu
> Fix For: 2.7.0
>
> Attachments: HDFS-7785.01.patch, HDFS-7785.01.patch
>
>
> One of our namenode logs shows the following exception message.
> ...
> Caused by:
> org.apache.hadoop.hdfs.server.namenode.TransferFsImage$HttpPutFailedException:
> org.apache.hadoop.security.authentication.util.SignerException: Invalid
> signature
> at
> org.apache.hadoop.hdfs.server.namenode.TransferFsImage.uploadImage(TransferFsImage.java:294)
> ...
> {{HttpPutFailedException}} should have its detailed information, such as
> status code and url, shown in the log to help debugging.
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