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From "Josh Elser (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-2719) Shell fails to find instance_id when using viewfs
Date Tue, 22 Apr 2014 19:52:15 GMT


Josh Elser commented on ACCUMULO-2719:

[~dlmarion], can you elaborate on your configuration here (notably the instance.* values in
accumulo-site.xml and your viewfs mount table)? You're trying to run Accumulo over ViewFS,
but as I understand it, viewfs presents a single Hadoop FileSystem over multiple DFS instances
using mount-points, so I'm confused as to the environment.

You mention {{instance.volumes}}, but I would have thought that you'd use viewfs to try to
alleviate the need to specify multiple volumes when you only want to pin a certain table to
a given filesystem (and not spread files across many filesystems).

Also, how/where did {{accumulo init}} write the instance_id?

> Shell fails to find instance_id when using viewfs
> -------------------------------------------------
>                 Key: ACCUMULO-2719
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>          Components: shell
>    Affects Versions: 1.6.0
>            Reporter: Dave Marion
>            Priority: Minor
> Shell fails to find instance id at /accumulo/instance_id when just the name service roots
are configured in viewfs. Fails at ZooUtil.getInstanceIDFromHDFS(line 63). I'm thinking the
code should prepend one of the instance.volumes.
> Workaround is to explicitly map /accumulo/instance_id in viewfs to one of the locations.

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