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https://issues.apache.org/jira/browse/HDFS-5498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee resolved HDFS-5498.
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Resolution: Fixed
Fix Version/s: HDFS-5535 (Rolling upgrades)
Hadoop Flags: Reviewed
Thanks for the reviews, gentlemen. I've committed this to the RU branch.
> Improve datanode startup time
> -----------------------------
>
> Key: HDFS-5498
> URL: https://issues.apache.org/jira/browse/HDFS-5498
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Fix For: HDFS-5535 (Rolling upgrades)
>
> Attachments: HDFS-5498.with_du_change.patch,
> HDFS-5498.with_du_change.patch, HDFS-5498_sh.patch
>
>
> Similarly to HDFS-5027, an improvement can be made for getVomeMap(). This is
> the phase in which ReplicaMap.is populated. But it will be even better if
> datanode scans only once and do both.
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