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https://issues.apache.org/jira/browse/HDFS-1975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-1975:
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Component/s: ha
> HA: Support for sharing the namenode state from active to standby.
> ------------------------------------------------------------------
>
> Key: HDFS-1975
> URL: https://issues.apache.org/jira/browse/HDFS-1975
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Reporter: Suresh Srinivas
> Assignee: Jitendra Nath Pandey
> Fix For: HA branch (HDFS-1623)
>
> Attachments: HDFS-1975-HA.2.patch, HDFS-1975-HA.patch,
> HDFS-1975-HDFS-1623.patch, HDFS-1975-HDFS-1623.patch,
> HDFS-1975-HDFS-1623.patch, HDFS-1975-HDFS-1623.patch, hdfs-1975.txt,
> hdfs-1975.txt
>
>
> To enable hot standby namenode, the standby node must have current
> information for - namenode state (image + edits) and block location
> information. This jira addresses keeping the namenode state current in the
> standby node. To do this, the proposed solution in this jira is to use a
> shared storage to store the namenode state.
> Note one could also build an alternative solution by augmenting the backup
> node. A seperate jira could explore this.
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