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https://issues.apache.org/jira/browse/HDFS-4098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13552025#comment-13552025
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Suresh Srinivas commented on HDFS-4098:
---------------------------------------
Comments:
# FSNamesystem.java
#* Please add a comment that for INode in read-only snapshot access time is not
updated. Optionally move updating access time to a separate method with the
description of when update is not made.
# FileWithLink.java
#* Based on the javadoc comments alone, I cannot figure out the difference
between #asFile() and #getNext(). asFile could also move to util, since it need
not be a method in the interface. Given implementations are returning {{this}}
for asFile(), I am not sure I understand its functionality.
# FileWithLink#Util needs unit tests. If you want to do it in another jira,
please create one.
> Support append to original files which are snapshotted
> ------------------------------------------------------
>
> Key: HDFS-4098
> URL: https://issues.apache.org/jira/browse/HDFS-4098
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h4098_20130107.patch, h4098_20130109b.patch
>
>
> When a regular file is reopened for append, the type is changed from
> INodeFile to INodeFileUnderConstruction. The type of snapshotted files (i.e.
> original files) is INodeFileWithLink. We have to support similar "under
> construction" INodeFileWithLink.
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