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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2008/07/30 19:25:32 UTC
[jira] Created: (HADOOP-3862) Create network topology plugin that
uses a configured rack ip mask
Create network topology plugin that uses a configured rack ip mask
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Key: HADOOP-3862
URL: https://issues.apache.org/jira/browse/HADOOP-3862
Project: Hadoop Core
Issue Type: New Feature
Reporter: Owen O'Malley
We should have a Java class that answers network topology questions by implementing DNSToSwitchMapping by using the host's IP address and a mask that defines the addresses that are on the same rack. Therefore, if your racks are defined by using the top 3 octets, you'd configure ff.ff.ff.00.
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[jira] Commented: (HADOOP-3862) Create network topology plugin that
uses a configured rack ip mask
Posted by "Allen Wittenauer (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-3862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12620142#action_12620142 ]
Allen Wittenauer commented on HADOOP-3862:
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Typically, netmasks are either defined as 0xffffff00 or 255.255.255.0 . ff.ff.ff.00 just looks weird to me. :)
Also, what happens if IPv6 is in use?
> Create network topology plugin that uses a configured rack ip mask
> ------------------------------------------------------------------
>
> Key: HADOOP-3862
> URL: https://issues.apache.org/jira/browse/HADOOP-3862
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Owen O'Malley
>
> We should have a Java class that answers network topology questions by implementing DNSToSwitchMapping by using the host's IP address and a mask that defines the addresses that are on the same rack. Therefore, if your racks are defined by using the top 3 octets, you'd configure ff.ff.ff.00.
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