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From "Adam Kocoloski (JIRA)" <>
Subject [jira] Created: (COUCHDB-174) Docs with lots of revisions break replication
Date Wed, 10 Dec 2008 05:16:46 GMT
Docs with lots of revisions break replication

                 Key: COUCHDB-174
             Project: CouchDB
          Issue Type: Bug
          Components: Database Core
            Reporter: Adam Kocoloski

When replicating from a remote source CouchDB uses the open_revs query string parameter in
a document request and supplies a list of revisions that are present on the source but not
on the target.  If this list is very large the resulting URL might exceed 8 KB, in which case
MochiWeb/gen_tcp will not serve the request.

I'm sure there are a number of ways to work around this limitation.  I'm attaching a patch
that checks if the URL formed from the list of revs to open will be larger than 8 KB, and
if so chunks the list and makes multiple smaller requests.  Best,


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