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https://issues.apache.org/jira/browse/HDDS-807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Wagle updated HDDS-807:
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Attachment: HDDS-807.03.patch
> Period should be an invalid character in bucket names
> -----------------------------------------------------
>
> Key: HDDS-807
> URL: https://issues.apache.org/jira/browse/HDDS-807
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Arpit Agarwal
> Assignee: Siddharth Wagle
> Priority: Critical
> Labels: newbie
> Attachments: HDDS-807.01.patch, HDDS-807.02.patch, HDDS-807.03.patch
>
>
> ozonefs paths use the following syntax:
> - o3fs://bucket.volume/..
> The OM host and port are read from configuration. We cannot specify a target
> filesystem with a fully qualified path. E.g.
> _o3fs://bucket.volume.om-host.example.com:9862/. Hence we cannot hand a fully
> qualified URL with OM hostname to a client without setting up config files
> beforehand. This is inconvenient. It also means there is no way to perform a
> distcp from one Ozone cluster to another.
> We need a way to support fully qualified paths with OM hostname and port
> _bucket.volume.om-host.example.com_. If we allow periods in bucketnames, then
> such fully qualified paths cannot be parsed unambiguously. However if er
> disallow periods, then we can support all of the following paths
> unambiguously.
> # *o3fs://bucket.volume/key* - The authority has only two period-separated
> components. These must be bucket and volume name respectively.
> # *o3fs://bucket.volume.om-host.example.com/key* - The authority has more
> than two components. The first two must be bucket and volume, the rest must
> be the hostname.
> # *o3fs://bucket.volume.om-host.example.com:5678/key* - Similar to #2,
> except with a port number.
>
> Open question is around HA support. I believe for HA we will have to
> introduce the notion of a _nameservice_, similar to HDFS nameservice. This
> will allow a fourth kind of Ozone URL:
> - *o3fs://bucket.volume.ns1/key* - How do we distinguish this from #3 above?
> One way could be to find if _ns1_ is known as an Ozone nameservice via
> configuration. If so then treat it as the name of an HA service. Else treat
> it as a hostname.
>
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