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https://issues.apache.org/jira/browse/COUCHDB-885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034976#comment-13034976
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Robert Newson commented on COUCHDB-885:
---------------------------------------
I should be clearer: the bug was introduced in the 0.11 release, preserved
through 1.0, and finally squashed by the new replicator on trunk.
> Attachments introduce conflicts after replication.
> --------------------------------------------------
>
> Key: COUCHDB-885
> URL: https://issues.apache.org/jira/browse/COUCHDB-885
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Affects Versions: 1.0.1
> Environment: Mac OSX, Windows XP, Windows 7
> Reporter: Nikolai Teofilov
> Fix For: 1.2
>
> Attachments: COUCHDB-885.sh
>
>
> Step to reproduce the bug:
> 1. Make database "test" on a remote couchdb server that reside on a
> different machine!
> 2. Create new document: "http://remote-server:5984/test/doc";
> 3. Create database "replica" on the local couchdb server.
> 4. Trigger pull replication http://remote-server:5984/test ->
> http://localhost:5984/replica
> 5. Attach a file to the replicated document on the local couchdb server.
> 6. Trigger push replication http://localhost:5984/replica ->
> http://remote-server:5984/test
> The document in the test database shows one conflict. If instead attachment
> the document is updated with a new field after the replication no conflict.
> The same sequence shows no conflicts on CouchDB 0.11.
> ************ test.sh ****************
> #!/usr/bin/env bash
> LOCAL="http://localhost:5984";
> REMOTE="http://koleto.couchone.com";
> echo "====================================================="
> echo "This sequence create a conflict after the replication"
> echo "====================================================="
> echo "Cleanup"
> curl --silent -X DELETE $LOCAL/replica
> curl --silent -X DELETE $REMOTE/test
> echo "Create database:" $REMOTE/test
> curl --silent -X PUT $REMOTE/test
> echo "Create empty document:"
> curl --silent -d '{}' -X PUT $REMOTE/test/doc
> echo "Create local databse:" $LOCAL/replica
> curl --silent -X PUT $LOCAL/replica
> echo "Pull replication:" REMOTE/test "->" $LOCAL/replica
> curl --silent -X POST -d
> "{\"source\":\"$REMOTE/test\",\"target\":\"$LOCAL/replica\"}" -H
> 'Content-Type: application/json' $LOCAL/_replicate
> echo "Put an attachment to the document:"
> echo "foobar!" | curl --silent --upload-file - -X PUT
> "$LOCAL/replica/doc/foo.txt?rev=1-967a00dff5e02add41819138abb3284d"
> echo "Push replication:" $LOCAL/replica "->" $REMOTE/test
> curl --silent -X POST -d
> "{\"source\":\"$LOCAL/replica\",\"target\":\"$REMOTE/test\"}" -H
> 'Content-Type: application/json' $LOCAL/_replicate
> echo '############## Get one conflic #####################'
> curl --silent -X GET $REMOTE/test/doc?conflicts=true
> echo "====================================================="
> echo "The same sequence with adding a field to the document"
> echo "====================================================="
> echo "Cleanup"
> curl --silent -X DELETE $LOCAL/replica
> curl --silent -X DELETE $REMOTE/test
> echo "Create database:" $REMOTE/test
> curl --silent -X PUT $REMOTE/test
> echo "Create empty document:"
> curl --silent -d '{}' -X PUT $REMOTE/test/doc
> echo "Create local databse:" $LOCAL/replica
> curl --silent -X PUT $LOCAL/replica
> echo "Pull replication:" REMOTE/test "->" $LOCAL/replica
> curl --silent -X POST -d
> "{\"source\":\"$REMOTE/test\",\"target\":\"$LOCAL/replica\"}" -H
> 'Content-Type: application/json' $LOCAL/_replicate
> echo "Adding a new field:"
> curl --silent -d '{"foo":"bar" , "_rev" :
> "1-967a00dff5e02add41819138abb3284d" }' -X PUT
> $LOCAL/replica/doc?rev=1-967a00dff5e02add41819138abb3284d
> echo "Push replication:" $LOCAL/replica "->" $REMOTE/test
> curl --silent -X POST -d
> "{\"source\":\"$LOCAL/replica\",\"target\":\"$REMOTE/test\"}" -H
> 'Content-Type: application/json' $LOCAL/_replicate
> echo '###### No conflicts after the replication ########'
> curl --silent -X GET $REMOTE/test/doc?conflicts=true
>
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