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https://issues.apache.org/jira/browse/HADOOP-7878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167154#comment-13167154
]
Steve Loughran commented on HADOOP-7878:
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No javadoc warnings are being generated. This patch only touches test/ files
that aren't included in the javadoc targets. Local diffs of before/after only
show changes in download times/bandwidth
$ cat patchJavadocWarnings.txt
[INFO] Scanning for projects...
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/Users/slo/Java/Hadoop/github/trunk/hadoop-project/pom.xml, line 140, column 19
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten
the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support
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[INFO] ------------------------------------------------------------------------
[INFO] Building Apache Hadoop Common 0.24.0-SNAPSHOT
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[INFO]
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ hadoop-common ---
[INFO] Deleting
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[INFO]
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/Users/slo/Java/Hadoop/github/trunk/hadoop-common-project/hadoop-common/target/classes
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[INFO]
[INFO] --- maven-surefire-plugin:2.10:test (default-test) @ hadoop-common ---
[INFO] Tests are skipped.
[INFO]
[INFO] >>> maven-javadoc-plugin:2.7:javadoc (default-cli) @ hadoop-common >>>
[INFO]
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[INFO] --- build-helper-maven-plugin:1.5:add-source (add-source) @
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added.
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[INFO]
[INFO] <<< maven-javadoc-plugin:2.7:javadoc (default-cli) @ hadoop-common <<<
[INFO]
[INFO] --- maven-javadoc-plugin:2.7:javadoc (default-cli) @ hadoop-common ---
[INFO]
ExcludePrivateAnnotationsStandardDoclet
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:17.934s
[INFO] Finished at: Sun Dec 11 17:40:12 GMT 2011
[INFO] Final Memory: 24M/114M
[INFO] ------------------------------------------------------------------------
> Regression HADOOP-7777 switch changes too clever for the StaticMapping
> ----------------------------------------------------------------------
>
> Key: HADOOP-7878
> URL: https://issues.apache.org/jira/browse/HADOOP-7878
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Labels: regression
> Attachments: HADOOP-7878.patch, HADOOP-7878.patch
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> This doesn't show up until you apply the HDFS-2492 patch, but the attempt to
> make the {{StaticMapping}} topology clever by deciding if it is single rack
> or multi rack based on its rack->node mapping breaks the HDFS
> {{TestBlocksWithNotEnoughRacks}} test. Why? Because the racks go in after the
> switch topology is cached by the {{BlockManager}}, which assumes the system
> is always single-switch.
> Fix: default to assuming multi-switch; remove the intelligence, add a setter
> for anyone who really wants to simulate single-switch racks.
> Test: verify that a newly created simple mapping is multi switch
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