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https://issues.apache.org/jira/browse/HDFS-7185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao reassigned HDFS-7185:
-------------------------------

    Assignee: Jing Zhao

> The active NameNode will not accept an fsimage sent from the standby during 
> rolling upgrade
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7185
>                 URL: https://issues.apache.org/jira/browse/HDFS-7185
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Jing Zhao
>
> The active NameNode will not accept an fsimage sent from the standby during 
> rolling upgrade.  The active fails with the exception:
> {code}
> 18:25:07,620  WARN ImageServlet:198 - Received an invalid request file 
> transfer request from a secondary with storage info 
> -59:65195028:0:CID-385de4d7-64e4-4dde-9f5d-0a6e431987f6
> 18:25:07,620  WARN log:76 - Committed before 410 PutImage failed. 
> java.io.IOException: This namenode has storage info 
> -55:65195028:0:CID-385de4d7-64e4-4dde-9f5d-0a6e431987f6 but the secondary 
> expected -59:65195028:0:CID-385de4d7-64e4-4dde-9f5d-
> 0a6e431987f6
>         at 
> org.apache.hadoop.hdfs.server.namenode.ImageServlet.validateRequest(ImageServlet.java:200)
>         at 
> org.apache.hadoop.hdfs.server.namenode.ImageServlet.doPut(ImageServlet.java:443)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:730)
> {code}
> On the standby, the exception is:
> {code}
> java.io.IOException: Exception during image upload: 
> org.apache.hadoop.hdfs.server.namenode.TransferFsImage$HttpPutFailedException:
>  This namenode has storage info 
> -55:65195028:0:CID-385de4d7-64e4-4dde-9f5d-0a6e431987f6 but the secondary 
> expected
>  -59:65195028:0:CID-385de4d7-64e4-4dde-9f5d-0a6e431987f6
>         at 
> org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer.doCheckpoint(StandbyCheckpointer.java:218)
>         at 
> org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer.access$1400(StandbyCheckpointer.java:62)
> {code}
> This seems to be a consequence of the fact that the VERSION file still is at 
> -55 (the old version) even after the rolling upgrade has started.  When the 
> rolling upgrade is finalized with {{hdfs dfsadmin -rollingUpgrade finalize}}, 
> both VERSION files get set to the new version, and the problem goes away.



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