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https://issues.apache.org/jira/browse/HDFS-14001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16708208#comment-16708208
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Virajith Jalaparti commented on HDFS-14001:
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[^HDFS-14001.001.patch] enables transfer of the aliasmap during the bootstrap
process. The aliasmap transfer itself is done by taking a snapshot of the
LevelDB store, copy all the key-value pairs contained in the snapshot into a
temporary LevelDB store, compress the temporary store into a .tar.gz and
transfer the .tar.gz for the bootstrap process.
> [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
>
>
> 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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