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https://issues.apache.org/jira/browse/ACCUMULO-1832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895273#comment-13895273
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Keith Turner commented on ACCUMULO-1832:
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bq. I like the idea of using a prefix (see [1]) instead of full URL.
Me too. If all paths in accumulo looked the like following, it would simplify
a lot of things. Volume id could be looked up in zookeeper to get a URI. In
addition to making administrative operations like rename easier, it would also
clean up a lot of code. Fully qualified URIs are not easy to compare, must
compare some suffix. Currently its hard to get these comparisons right and
easy to get them wrong. And if you do get the comparison wrong it may only
cause problems under certain situations (so test would pass, but it could fail
for users in strange ways). I am concerned about these comparisons being a
source of hard to catch bugs moving forward as code is changed.
{noformat}
/<volume id>/<accumulo dir>/tables/<table dir>/<tablet dir>/<tablet file>
{noformat}
> Create utility for rewriting uris
> ---------------------------------
>
> Key: ACCUMULO-1832
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1832
> Project: Accumulo
> Issue Type: Sub-task
> Components: master, tserver
> Reporter: Keith Turner
> Assignee: Eric Newton
> Priority: Blocker
> Fix For: 1.6.0
>
>
> When a users namenode dies and they restore it on another node Accumulo will
> not work since it stores fully qualified uris internally. Need to a provide
> a utility to rewrite these URIs.
> The utility could rewrite paths in zookeeper, bring root table online and
> rewrite paths, bring metadata table online and rewrite, and then allow user
> tablets to come online.
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