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https://issues.apache.org/jira/browse/HDFS-4126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560077#comment-13560077
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Jing Zhao commented on HDFS-4126:
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bq. Snapshot in javadoc is missing snapshot name?
The snapshot name is actually stored as the local name of the Snapshot#root.
Added explanation in the javadoc.
bq. Snapshot related methods should be moved to an inner class or separate
class. This can be done in a separate jira.
Created a new class SnapshotFSImageFormat in the snapshot package, and move
snapshot-related fsimage read/write methods to the new class as static members.
> Add reading/writing snapshot information to FSImage
> ---------------------------------------------------
>
> Key: HDFS-4126
> URL: https://issues.apache.org/jira/browse/HDFS-4126
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Affects Versions: Snapshot (HDFS-2802)
> Reporter: Suresh Srinivas
> Assignee: Jing Zhao
> Attachments: HDFS-4126.001.patch, HDFS-4126.002.patch,
> HDFS-4126.002.patch, HDFS-4126.003.patch
>
>
> After the changes proposed in HDFS-4125 is completed, reading and writing
> snapshot related information from FSImage can be implemented. This jira
> tracks changes required for:
> # Loading snapshot information from FSImage
> # Loading snapshot related operations from editlog
> # Writing snapshot information in FSImage
> # Unit tests related to this functionality
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