Ignore rexi_EXIT bigcouch error

don't know what this is about:

[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13165.187>] [3dd222a4] 127.0.0.1 undefined GET / 200 ok 1
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13182.187>] [5948df15] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13182.187>] [5948df15] 127.0.0.1 undefined GET / 200 ok 0
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13292.187>] [2cb613ea] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13292.187>] [2cb613ea] 127.0.0.1 undefined GET / 200 ok 0
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13295.187>] [fc61c9d0] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:49 GMT] [info] [<0.13295.187>] [fc61c9d0] 127.0.0.1 undefined GET / 200 ok 1

[Tue, 09 Dec 2014 12:51:51 GMT] [error] [emulator] [--------] Error in process <0.13593.187> on node 'bigcouch@urchin.dev.bitmask.net' with exit value: { {rexi_EXIT,{killed,[{couch_db,collect_results,3,[{file,"sr
c/couch_db.erl"},{line,820}]},{couch_db,write_and_commit,4,[{file,"src/couch_db.erl"},{line,831}]},{couch_db,update_docs,4,[{file,"src/couch_db.erl"},{line,771}]},{fabric_rpc... 

[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13424.187>] [9e003e10] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13424.187>] [9e003e10] 127.0.0.1 undefined GET / 200 ok 1
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13425.187>] [ea9b027c] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13425.187>] [ea9b027c] 127.0.0.1 undefined GET / 200 ok 0
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13439.187>] [71edcb37] undefined - - 'GET' / 200
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13439.187>] [71edcb37] 127.0.0.1 undefined GET / 200 ok 0
[Tue, 09 Dec 2014 12:51:52 GMT] [info] [<0.13440.187>] [51b94840] undefined - - 'GET' / 200

(from redmine: created on 2014-12-09, closed on 2014-12-17, relates #6488 (closed))