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https://issues.apache.org/jira/browse/HDFS-9951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lin Yiqun updated HDFS-9951:
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Attachment: (was: HDFS-9551.001.patch)
> Improve the Node key definition in OfflineImageReconstructor
> ------------------------------------------------------------
>
> Key: HDFS-9951
> URL: https://issues.apache.org/jira/browse/HDFS-9951
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Lin Yiqun
> Assignee: Lin Yiqun
> Priority: Minor
>
> In class {{OfflineImageReconstructor}}, it uses many {{SectionProcessors}} to
> process xml files and load the subtree of the XML into a Node structure. But
> there are lots of places that node removes key by directively writing value
> in methods rather than define them first. Like this:
> {code}
> Node expiration = directive.removeChild("expiration");
> {code}
> We could improve this to define them in Node and them invoked like this way:
> {code}
> Node expiration=directive.removeChild(Node.CACHE_MANAGER_SECTION_EXPIRATION);
> {code}
> And it will be good to manager node key's name in the future.
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