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https://issues.apache.org/jira/browse/HDDS-7585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17655291#comment-17655291
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Attila Doroszlai commented on HDDS-7585:
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bq. If user requests to create another bucket with name x-y-z, or x_y-z, or
x-y_z, ozone will reject with "already exists".
But that may be just as incompatible with the application that wants to use
{{_}} in bucket names as original the restriction on the name. It may expect
to be able to create separate bucket with each name variation.
> Allow Ozone bucket to use non-S3-compliance naming rule
> -------------------------------------------------------
>
> Key: HDDS-7585
> URL: https://issues.apache.org/jira/browse/HDDS-7585
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone CLI, Ozone Filesystem, Ozone Manager
> Reporter: Dave Teng
> Priority: Major
>
> We notice many HDFS migration cases which translate the second level
> directory names to Ozone bucket names.
> However, some characters in the name of directory are +compliant with POSIX+
> convention, but are +not compliant with S3+ naming rule, such as
> {*}underscore{*}.
> Thus the original HDFS path which contains *underscore* _character are not
> allowed to put into Ozone because by default Ozone's path validation is same
> as S3. For such users, this proposal wish to provide a way that when the user
> gives a flag while creating the bucket via Ozone CLI (not from S3 interface),
> Ozone will allow *underscore*_ only for such buckets. The idea is it'd be
> user's choice whether to create a non-s3 compliant bucket path or not. Ozone
> will keep equally supporting both OFS and S3 interfaces. For pure file system
> back ground users, they may want to go ahead with this flag by having the
> awareness of that they may not be able to access the bucket through S3
> interface.
>
> This Jira is an umbrella ticket that makes Ozone compatible with these two
> types of naming convention, both POSIX and S3, to enable the HDFS to Ozone
> migration with non s3 compliant paths.
>
> (ps:
> - This proposal wouldn't change the default behavior of S3 bucket naming
> semantic in Ozone.
> - The documentation for new flag will be provided! )
>
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