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https://issues.apache.org/jira/browse/HDFS-3695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-3695:
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Attachment: hdfs-3695.txt
Attached simple patch hooks up format() through to the non-file-based
JournalManager implementations.
I will do the actual QJM implementation in a separate patch, so that it's clear
which are the generic changes vs the QJM-specific ones. This patch is
unit-tested by a modification of TestGenericJournalConf.
> Genericize format() and initializeSharedEdits() to non-file JournalManagers
> ---------------------------------------------------------------------------
>
> Key: HDFS-3695
> URL: https://issues.apache.org/jira/browse/HDFS-3695
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: QuorumJournalManager (HDFS-3077)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-3695.txt
>
>
> Currently, the "namenode -format" and "namenode -initializeSharedEdits"
> commands do not understand how to do anything with non-file-based shared
> storage. This affects both BookKeeperJournalManager and QuorumJournalManager.
> This JIRA is to plumb through the formatting of edits directories using
> pluggable journal manager implementations so that no separate step needs to
> be taken to format them -- the same commands will work for NFS-based storage
> or one of the alternate implementations.
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