[
https://issues.apache.org/jira/browse/ACCUMULO-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292438#comment-14292438
]
Christopher Tubbs commented on ACCUMULO-3537:
---------------------------------------------
{{instance.volumes.replacements}} may currently have a restriction that the
replacement must exist in {{instance.volumes}}. That may be problematic here,
but I'm not sure that restriction is even needed. {{instance.volumes}}
specifies new volumes to use. The volume being replaced doesn't need to be
available for new files. We just need to be able to access the old location.
So, if that restriction is in place, we need to create another issue to relax
that restriction.
> Create an explicit configuration option for replacing relative paths
> --------------------------------------------------------------------
>
> Key: ACCUMULO-3537
> URL: https://issues.apache.org/jira/browse/ACCUMULO-3537
> Project: Accumulo
> Issue Type: Sub-task
> Reporter: Christopher Tubbs
> Fix For: 1.7.0
>
>
> {{instance.dfs.uri}} and {{instance.dfs.dir}} were deprecated in as part of
> ACCUMULO-2061, and were superseded by {{instance.volumes}}.
> This was a little bit confusing, because users upgrading from previous
> versions would still have relative paths in their metadata. To interpret
> these relative paths, these deprecated properties must still be set. So, it's
> a bit confusing to have deprecated properties which are still required for
> functionality.
> What we should do is explicitly create a way to replace these entries with
> absolute paths that does not depend on using deprecated properties.
> A sensible location for this is {{instance.volumes.replacements}}. This field
> could have a special replacement, "RELATIVE", which replaces all relative
> paths with an explicit target volume. ACCUMULO-3007 ignored relative paths,
> but this issue proposes to handle them instead of ignore them.
> These properties previously provided two functions:
> # Create new files with absolute paths (only if instance.volumes is not set)
> # Interpret old relative files (always)
> The first function is replaced with {{instance.volumes}}. The second function
> is replaced by the proposed improvement to {{instance.volumes.replacements}}
> here.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
