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https://issues.apache.org/jira/browse/HDFS-13063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16338804#comment-16338804
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Akira Ajisaka edited comment on HDFS-13063 at 1/25/18 6:35 AM:
---------------------------------------------------------------
Committed this to trunk, branch-3.0, branch-2, and branch-2.9. Thanks
[~jiangjianfei] for the contribution and thanks [~bharatviswa] for the review.
was (Author: ajisakaa):
Committed this to trunk. Thanks [~jiangjianfei] for the contribution and thanks
[~bharatviswa] for the review.
> Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md
> ------------------------------------------------------------
>
> Key: HDFS-13063
> URL: https://issues.apache.org/jira/browse/HDFS-13063
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Affects Versions: 3.0.0
> Reporter: Jianfei Jiang
> Assignee: Jianfei Jiang
> Priority: Trivial
> Fix For: 3.1.0, 2.10.0, 2.9.1, 3.0.1
>
> Attachments: HDFS-13063.001.patch
>
>
> The word JournalNode in this markdown file is incorrect spelled.
> In order for the Standby node to keep its state synchronized with the Active
> node, both nodes communicate with a group of separate daemons called
> "JournalNodes" (JNs). When any namespace modification is performed by the
> Active node, it durably logs a record of the modification to a majority of
> these JNs. The Standby node is capable of reading the edits from the JNs, and
> is constantly watching them for changes to the edit log. As the Standby Node
> sees the edits, it applies them to its own namespace. In the event of a
> failover, the Standby will ensure that it has read all of the edits from the
> {color:#333333}*JounalNodes*{color} before promoting itself to the Active
> state. This ensures that the namespace state is fully synchronized before a
> failover occurs.
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