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https://issues.apache.org/jira/browse/HDFS-14001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16712018#comment-16712018
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Íñigo Goiri commented on HDFS-14001:
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When bootstrapping, if the alias map exists, it currently deletes it right away.
I think we should check the force flag and if it's not there just log the error.
> [PROVIDED Storage] bootstrapStandby should manage the InMemoryAliasMap
> ----------------------------------------------------------------------
>
> Key: HDFS-14001
> URL: https://issues.apache.org/jira/browse/HDFS-14001
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Íñigo Goiri
> Assignee: Virajith Jalaparti
> Priority: Major
> Attachments: HDFS-14001.001.patch, HDFS-14001.002.patch
>
>
> Currently, we generate the fsimage and the alias map in one machine. When we
> start the other NNs, we use bootstrapStandby to propagate the fsimage.
> However, we need to copy the Alias Map by hand. We should copy also the Alias
> Map as part of this process.
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