[
https://issues.apache.org/jira/browse/COUCHDB-3221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15902106#comment-15902106
]
Sean Lang commented on COUCHDB-3221:
------------------------------------
COUCHDB-2422 suggests that this was resolved in Cassim by adding a prefix to
the doc name, but I don't think that fix was applied to the `_dbs` database,
because I'm still seeing this issue on 2.0.0.
> Shard maps for reserved database names cannot be updated
> --------------------------------------------------------
>
> Key: COUCHDB-3221
> URL: https://issues.apache.org/jira/browse/COUCHDB-3221
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Affects Versions: 2.0.0
> Reporter: Simon Keary
>
> I'm still seeing the same problem as described in COUCHDB-2424 with CouchDB
> 2.0.0 (Ubuntu) but it doesn't appear that I can reopen that issue.
> What I'm trying to do trying to get a newly added cluster node to participate
> in all the databases already created in the cluster so that I can then remove
> an existing node and replace it with the new one. The workflow I have is:
> * Add the new node to the cluster using the _nodes endpoint. This works.
> * For each database edit the shard metadata document (e.g. _db/db_name) and
> add all shards to the new node.
> This appears to work for all databases except the system databases.
> Essentially this means that you can't move the shards for these database off
> a node in order to retire that node.
> An easy way to reproduce the issue is to open
> http://localhost:5986/_utils/#/database/_dbs/_metadata and then click "Save
> Changes" in Fauxton. The error "Save failed: Only reserved document ids may
> start with underscore." is displayed. Doing the same process for a user
> database works fine. Similarly, editing the document via curl also fails with
> the same error.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
