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https://issues.apache.org/jira/browse/HDFS-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252677#comment-13252677
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Todd Lipcon commented on HDFS-3256:
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bq. not yet processing processing repl queues
Too many "processing"s. You've been hanging out with Eli too much.
Also, I'd say we should just log it at DEBUG level for the "Not checking" case.
> HDFS considers blocks under-replicated if topology script is configured with
> only 1 rack
> ----------------------------------------------------------------------------------------
>
> Key: HDFS-3256
> URL: https://issues.apache.org/jira/browse/HDFS-3256
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-3256.patch, HDFS-3256.patch, HDFS-3256.patch,
> HDFS-3256.patch, HDFS-3256.patch
>
>
> HDFS treats the mere presence of a topology script being configured as
> evidence that there are multiple racks. If there is in fact only a single
> rack, the NN will try to place the blocks on at least two racks, and thus
> blocks will be considered to be under-replicated.
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