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https://issues.apache.org/jira/browse/HADOOP-8240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13276255#comment-13276255
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Tsz Wo (Nicholas), SZE commented on HADOOP-8240:
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#1 in design choices sounds good to me except that it is better to add a new
class, say ChecksumOpts, than reuse DataChecksum. The new class should be in
the o.a.h.fs package (or an inner class of fs.Options) and the checksum type
should be an enum instead of int.
> Allow users to specify a checksum type on create()
> --------------------------------------------------
>
> Key: HADOOP-8240
> URL: https://issues.apache.org/jira/browse/HADOOP-8240
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.23.0
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Fix For: 0.23.3, 2.0.0, 3.0.0
>
> Attachments: hadoop-8240.patch
>
>
> Per discussion in HADOOP-8060, a way for users to specify a checksum type on
> create() is needed. The way FileSystem cache works makes it impossible to use
> dfs.checksum.type to achieve this. Also checksum-related API is at
> Filesystem-level, so we prefer something at that level, not hdfs-specific
> one. Current proposal is to use CreatFlag.
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