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https://issues.apache.org/jira/browse/COUCHDB-455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740132#action_12740132
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Adam Kocoloski commented on COUCHDB-455:
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Hi Enda, thanks for the report. I have to admit I'm a bit stumped at first.
The error message indicates that the replication gen_server had exited before
the call to get_result. Couch 0.9.0 and higher should protect against that.
Were there any other related error messages?
There is one scenario I can dream up. Are you triggering that same replication
multiple times simultaneously? That is
A POSTs to _replicate
B POSTs to _replicate with identical request body
A receives a response, replicator shuts down
B gets a noproc error
In this case we try to add B as a listener to the original replication, but
it's technically possible the replication could terminate in between when B
gets the process id and when it asks for the result.
> get_result,infinity error when replicating an empty database
> ------------------------------------------------------------
>
> Key: COUCHDB-455
> URL: https://issues.apache.org/jira/browse/COUCHDB-455
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Affects Versions: 0.9
> Reporter: Enda Farrell
>
> We have code that regularly calls for CouchDB nodes to replicate with pairs
> in our other datacentre. It ocassionally has the follwing error:
> {code}
> INFO bbc.forge.engineering.couchdb.replicatr.ReplicateWorker 371 - Bad
> replication: [kv103.back.live.telhc.local:5986/tvp_yahoowidgets <-
> kv103.back.live.telhc.local:5986 (ACE_METADATA_)
> {"source":"http://kv103.back.live.telhc.local:5986/tvp_yahoowidgets","target":"tvp_yahoowidgets"}]:
> response:[HTTP/1.1 500 Internal Server Error -
> {"error":"noproc","reason":"{gen_server,call,[<0.17199.212>,get_result,infinity]}"}
> {code}
> The remote database
> "http://kv103.back.live.telhc.local:5986/tvp_yahoowidgets"; is empty:
> {code}curl http://kv103.back.live.telhc.local:5986/tvp_yahoowidgets
> {"db_name":"tvp_yahoowidgets","doc_count":0,"doc_del_count":0,"update_seq":0,"purge_seq":0,"compact_running":false,"disk_size":5920,"instance_start_time":"1249559096646177"}
> {code}
> This same "get_result,infinity", is seen on another empty database:
> {code}
> curl http://kv103.back.live.telhc.local:5984/avalanche150k
> {"db_name":"avalanche150k","doc_count":0,"doc_del_count":0,"update_seq":0,"purge_seq":0,"compact_running":false,"disk_size":250480,"instance_start_time":"1249559230162131"}
> {code}
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