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https://issues.apache.org/jira/browse/HDFS-1751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13007518#comment-13007518
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Boris Shkolnik commented on HDFS-1751:
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This seems to be a bit different kind of limitation. It is a cluster wide
setting and it is separate from quota. Quotas are per specific entity - user,
directory and so on. If the operator of a cluster needs to impose such a
cluster wide limitation he/she may want to use this new configuration. And
that's why it needs to be done thru config. So we shouldn't view this setting
as a quota at all.
I agree with the other Jacob's comment - regarding the name of the config
setting.
If you guys think using specific types of exceptions is more preferable - sure,
go ahead.
> Intrinsic limits for HDFS files, directories
> --------------------------------------------
>
> Key: HDFS-1751
> URL: https://issues.apache.org/jira/browse/HDFS-1751
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: data-node
> Affects Versions: 0.22.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.0
>
> Attachments: HDFS-1751-2.patch, HDFS-1751.patch
>
>
> Enforce a configurable limit on:
> the length of a path component
> the number of names in a directory
> The intention is to prevent a too-long name or a too-full directory. This is
> not about RPC buffers, the length of command lines, etc. There may be good
> reasons for those kinds of limits, but that is not the intended scope of this
> feature. Consequently, a reasonable implementation might be to extend the
> existing quota checker so that it faults the creation of a name that violates
> the limits. This strategy of faulting new creation evades the problem of
> existing names or directories that violate the limits.
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