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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2008/10/01 15:03:44 UTC
[jira] Created: (HADOOP-4324) Need a way to get the inforserver
port of a name node
Need a way to get the inforserver port of a name node
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Key: HADOOP-4324
URL: https://issues.apache.org/jira/browse/HADOOP-4324
Project: Hadoop Core
Issue Type: New Feature
Components: dfs
Affects Versions: 0.20.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Priority: Minor
To test that services shut down cleanly, I need to know the port that the namenode brings up an info server on, which means that its assigned port value needs to be exported from the namesystem.
I can see two ways to do this, and wish some recommendations of the best approach
1. extract the port value when the FSNameSystem comes up, and add it to that classes Conf; add a method to get that Conf so that its state can be read.
2. save the port value to a member variable in FSNameSystem and provide a public method to get at it.
My preference is for #1, as it is consistent with how the NameNode saves its port value, and doesn't change any APIs.
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[jira] Commented: (HADOOP-4324) Need a way to get the inforserver
port of a name node
Posted by "Doug Cutting (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636102#action_12636102 ]
Doug Cutting commented on HADOOP-4324:
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I'm generally not a fan of using the Configuration for output. A Configuration is a generic input mechanism for metadata, not a read/write blackboard for state.
> Need a way to get the inforserver port of a name node
> -----------------------------------------------------
>
> Key: HADOOP-4324
> URL: https://issues.apache.org/jira/browse/HADOOP-4324
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Affects Versions: 0.20.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> To test that services shut down cleanly, I need to know the port that the namenode brings up an info server on, which means that its assigned port value needs to be exported from the namesystem.
> I can see two ways to do this, and wish some recommendations of the best approach
> 1. extract the port value when the FSNameSystem comes up, and add it to that classes Conf; add a method to get that Conf so that its state can be read.
> 2. save the port value to a member variable in FSNameSystem and provide a public method to get at it.
> My preference is for #1, as it is consistent with how the NameNode saves its port value, and doesn't change any APIs.
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[jira] Resolved: (HADOOP-4324) Need a way to get the inforserver
port of a name node
Posted by "Steve Loughran (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran resolved HADOOP-4324.
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Resolution: Invalid
looking in the wrong place; getInfoPort() does it. It may still be useful to push out to the Conf instance though.
> Need a way to get the inforserver port of a name node
> -----------------------------------------------------
>
> Key: HADOOP-4324
> URL: https://issues.apache.org/jira/browse/HADOOP-4324
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Affects Versions: 0.20.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> To test that services shut down cleanly, I need to know the port that the namenode brings up an info server on, which means that its assigned port value needs to be exported from the namesystem.
> I can see two ways to do this, and wish some recommendations of the best approach
> 1. extract the port value when the FSNameSystem comes up, and add it to that classes Conf; add a method to get that Conf so that its state can be read.
> 2. save the port value to a member variable in FSNameSystem and provide a public method to get at it.
> My preference is for #1, as it is consistent with how the NameNode saves its port value, and doesn't change any APIs.
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