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https://issues.apache.org/jira/browse/COUCHDB-3149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Vatamaniuc resolved COUCHDB-3149.
--------------------------------------
Resolution: Fixed
> Exception written to the log if db deleted while there is a change feed
> running
> -------------------------------------------------------------------------------
>
> Key: COUCHDB-3149
> URL: https://issues.apache.org/jira/browse/COUCHDB-3149
> Project: CouchDB
> Issue Type: Bug
> Reporter: Nick Vatamaniuc
>
> {code}
> [info] 2016-09-14T20:08:23.217251Z [email protected] <0.23485.0> ea02496172
> ea02496172 127.0.0.1 localhost:15984 DELETE /d1 200 ok 46
> [error] 2016-09-14T20:08:23.221676Z [email protected] <0.22945.0> --------
> rexi_server
> error:{'EXIT',{{stop,{cb_state,<0.22937.0>,#Ref<0.0.1.15627>,true}},[{couch_event_listener_mfa,handle_event,3,[{file,"src/couch_event_listener_mfa.erl"},{line,91}]},{couch_event_listener,do_event,3,[{file,"src/couch_event_listener.erl"},{line,142}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"
> },{line,139}]}]}}
> [{couch_event_listener,do_event,3,[{file,"src/couch_event_listener.erl"},{line,150}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}]
> [info] 2016-09-14T20:08:23.222174Z [email protected] <0.22898.0> 549ae68ef1
> 549ae68ef1 127.0.0.1 localhost:15984 GET /d1/_changes?feed=longpoll 200 ok
> 32901
> {code}
> Appears in the log if a database gets deleted while there is a change feed
> running. Both longpoll or continuous seem to trigger the behavior.
> Exception above in couch_event_listener_mfa:handle_event comes from
> https://github.com/apache/couchdb-couch-event/blob/master/src/couch_event_listener_mfa.erl#L91
> which, in turn comes from fabric_db_update_listener handle_db_event returning
> \{stop, St\} in:
> https://github.com/apache/couchdb-fabric/blob/master/src/fabric_db_update_listener.erl#L87
> It seems couch_event_listerner_mfa:handle_event doesn’t handle \{stop, St\}
> only, \{ok, NewState\} or just stop or it raises an exception.
> I tried to replace \{stop, St\} with \{ok, St\} and then with stop. But in
> both cases change feeds never stopped.
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