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https://issues.apache.org/jira/browse/HDFS-11494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15895395#comment-15895395
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Yiqun Lin commented on HDFS-11494:
----------------------------------
{quote}
By the way, the sample log message is still the same?
{quote}
Yes, I have verified the log, it is same.
> Log message when DN is not selected for block replication
> ---------------------------------------------------------
>
> Key: HDFS-11494
> URL: https://issues.apache.org/jira/browse/HDFS-11494
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.0.0-alpha2
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Minor
> Attachments: HDFS-11494.001.patch, HDFS-11494.002.patch
>
>
> In HDFS-8946, a important message was removed.
> {code}
> if (requiredSize > remaining - scheduledSize) {
> logNodeIsNotChosen(storage, "the node does not have enough "
> + storage.getStorageType() + " space"
> + " (required=" + requiredSize
> + ", scheduled=" + scheduledSize
> + ", remaining=" + remaining + ")");
> return false;
> }
> {code}
> This log is important since it can tell us why DN is not selected for block
> replication. And it will be good for us to debug issues.
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