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https://issues.apache.org/jira/browse/SOLR-7458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14586175#comment-14586175
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Mike Drob commented on SOLR-7458:
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Strange. I tried running the suggested ant command and was unable to reproduce
locally. The command output on Jenkins isn't terribly useful either. I can
submit a patch to add error messages to the asserts if we think that will help
long term maintainability.
The failure looks like the test runner on Jenkins is able to count the written
blocks as local despite no hostname having been set. Maybe something in the
environment affects how MiniDfsCluster operates. We could set an explicit bogus
hostname to ensure that the data is "not local." I'm not sure how the test will
interact with 127.0.0.1 (the next assert) on Jenkins though.
> Expose HDFS Block Locality Metrics
> ----------------------------------
>
> Key: SOLR-7458
> URL: https://issues.apache.org/jira/browse/SOLR-7458
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Mike Drob
> Assignee: Mark Miller
> Labels: metrics
> Fix For: 5.3, Trunk
>
> Attachments: Data Locality.png, SOLR-7458.patch, SOLR-7458.patch,
> SOLR-7458.patch, SOLR-7458.patch, SOLR-7458.patch
>
>
> We should publish block locality metrics when using HDFS.
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