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https://issues.apache.org/jira/browse/YARN-8600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16565807#comment-16565807
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Hudson commented on YARN-8600:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14688 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14688/])
YARN-8600. RegistryDNS hang when remote lookup does not reply. (skumpf: rev
603a57476ce0bf9514f0432a235f29432ca4c323)
* (add)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/LookupTask.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/server/dns/TestRegistryDNS.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/RegistryDNS.java
> RegistryDNS hang when remote lookup does not reply
> --------------------------------------------------
>
> Key: YARN-8600
> URL: https://issues.apache.org/jira/browse/YARN-8600
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Affects Versions: 3.1.0
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Critical
> Fix For: 3.2.0, 3.1.1
>
> Attachments: YARN-8600.001.patch, YARN-8600.002.patch,
> YARN-8600.003.patch
>
>
> If lookup type mismatch with the record to query, remote DNS server might not
> reply. For example looking up a CNAME record with a PTR address:
> 1.76.27.172.in-addr.arpa. This can hang registryDNS.
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