[jira] [Closed] (COUCHDB-3221) Shard maps for reserved database names cannot be updated

["Joan Touzet (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COUCHDB-3221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joan Touzet closed COUCHDB-3221.
--------------------------------
    Resolution: Auto Closed

Migrated to https://github.com/apache/couchdb/issues/858

> 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.



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