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From "Adam Antal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13985) Clearer error message for ReplicaNotFoundException
Date Tue, 06 Nov 2018 14:25:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16676818#comment-16676818

Adam Antal commented on HDFS-13985:

I added a general error message to the exception in [^HDFS-13985.001.patch].  [~zvenczel]
could you please take a look at it?

> Clearer error message for ReplicaNotFoundException
> --------------------------------------------------
>                 Key: HDFS-13985
>                 URL: https://issues.apache.org/jira/browse/HDFS-13985
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>            Reporter: Adam Antal
>            Assignee: Adam Antal
>            Priority: Major
>         Attachments: HDFS-13985.001.patch
> The issue is that we came across a ReplicaNotFoundException in a bug report, the most
informative thing we could get is "Replica not found for [ExtendedBlock]". If someone tries
to investigate cases including ReplicaNotFoundExceptions should review diagnostic bundles,
dig through logs, but as a starting point enhancing the exception message would boost this
process, and be beneficial in the long run.
> More concretely, it would be helpful if any of the following information was displayed
along with the exception: file's name, replication factor or block location.

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