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https://issues.apache.org/jira/browse/COUCHDB-810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889650#action_12889650
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Robert Newson commented on COUCHDB-810:
---------------------------------------
FYI: I tested with the script below. The patch works if you don't see this
message with the patch applied for new and existing checkpoints (you need three
local couchdb instances).
"no common ancestry -- performing full replication"
#!/bin/bash
PORTS="5985 5986 5987"
for PORT in $PORTS
do
curl http://localhost:$PORT/db -X DELETE
curl http://localhost:$PORT/db -X PUT
curl http://localhost:$PORT/db/doc -d '{}' -X PUT
done
for I in 1 2 3
do
curl http://localhost:5985/db/doc5985$I -d '{}' -X PUT
curl http://localhost:5986/db/doc5986$I -d '{}' -X PUT
curl http://localhost:5987/db/doc5987$I -d '{}' -X PUT
curl http://localhost:5985/_replicate -d
'{"source":"db","target":"http://localhost:5986/db"}'
curl http://localhost:5985/_replicate -d
'{"source":"db","target":"http://localhost:5986/db"}'
curl http://localhost:5987/_replicate -d
'{"source":"db","target":"http://localhost:5985/db"}'
curl http://localhost:5987/_replicate -d
'{"source":"db","target":"http://localhost:5986/db"}'
done
> Running multiple instances on one machine breaks replication
> ------------------------------------------------------------
>
> Key: COUCHDB-810
> URL: https://issues.apache.org/jira/browse/COUCHDB-810
> Project: CouchDB
> Issue Type: Bug
> Components: Replication
> Affects Versions: 0.11.1, 1.0
> Reporter: Randall Leeds
> Attachments: 0001-versioned-replication-ids.patch
>
>
> Bob pointed out that the replication id does not include the port number. As
> a consequence, replication checkpoints between multiple instances running on
> the same machine can clobber one another. (Strangely, the port line is there
> but commented out.)
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