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https://issues.apache.org/jira/browse/HDFS-11494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450571#comment-16450571
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Hudson commented on HDFS-11494:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HDFS-11494. Log message when DN is not selected for block replication.
(aengineer: rev 370f4da168b218d9e43785f2eaf606fb7525ed75)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
> 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
> Fix For: 2.9.0, 3.0.0-alpha4
>
> 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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