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https://issues.apache.org/jira/browse/HDFS-14599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16874336#comment-16874336
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Íñigo Goiri commented on HDFS-14599:
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+1 on [^HDFS-14599.002.patch].
> HDFS-12487 breaks test
> TestDiskBalancer.testDiskBalancerWithFedClusterWithOneNameServiceEmpty
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-14599
> URL: https://issues.apache.org/jira/browse/HDFS-14599
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: diskbalancer
> Affects Versions: 3.3.0, 3.2.1, 3.1.3
> Reporter: Wei-Chiu Chuang
> Assignee: He Xiaoqiao
> Priority: Major
> Labels: newbie
> Attachments: HDFS-14599.001.patch, HDFS-14599.002.patch
>
>
> It looks like HDFS-12487 changes the error message expected by
> {{TestDiskBalancer#testDiskBalancerWithFedClusterWithOneNameServiceEmpty}}.
> The test expects error "There are no blocks in the blockPool" but after
> HDFS-12487, it returns error string "NextBlock call returned null.No valid
> block to copy."
> Probably the simplest approach to fix it is to update the expected error
> string.
> Thoughts? [~bharatviswa] you crafted the test in HDFS-13715. Should we update
> the expected error string, or revert HDFS-12487?
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