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https://issues.apache.org/jira/browse/COUCHDB-1004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976556#action_12976556
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Adam Kocoloski commented on COUCHDB-1004:
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A header is certainly doable from the BigCouch perspective. But in general I
don't like the fact that we've painted ourselves into an API corner where we
cannot extend db.info() in the future without breaking replication.
I think to_existing_atom/1 is a fine replacement in this case. If it's an
unknown atom we have a guarantee that the replicator is not going to be looking
for that particular field, so we might as well just leave it as a binary.
> list_to_existing_atom is too restrictive as used by couch_rep
> -------------------------------------------------------------
>
> Key: COUCHDB-1004
> URL: https://issues.apache.org/jira/browse/COUCHDB-1004
> Project: CouchDB
> Issue Type: Bug
> Components: Replication
> Environment: erlang
> Reporter: Bob Dionne
> Priority: Minor
>
> We'd like to additional information to db_info in BigCouch, such as the Q and
> N constants for a given database. This causes replication to fail when
> replicating from BigCouch to CouchDB due to the use of list_to_existing_atom
> in couch_rep:dbinfo(...
> The claim is that list_to_atom pollutes the atoms table, however superficial
> testing indicates this is not the case, list_to_atom when called repeatedly
> seems to work fine. If this is true then consider reverting
> list_to_existing_atom back to list_to_atom.
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