wohali opened a new issue #1356: error: function_clause, couch_btree:fold_reduce URL: https://github.com/apache/couchdb/issues/1356 Under heavy load and insufficient CPU, a 3-node cluster produced a large number of function_clause errors. This is one of these errors. Error log excerpt (sadly, no info logs are available): ``` [error] 2018-05-28T22:39:52.696000Z couchdb@##.##.##.## <0.15929.4482> 56e75f3a9b rexi_server error:function_clause [{couch_btree,fold_reduce,[undefined,#Fun<couch_db.32.89963714>,0,[{start_key,1}]],[{file,"src/couch_btree.erl"},{line,74}]},{couch_db,count_changes_since,2,[{file,"src/couch_db.erl"},{line,1265}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,78}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] ... [error] 2018-05-28T22:44:52.705000Z couchdb@##.##.##.## <0.31714.4413> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.7890.4480> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.21643.4413> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.31094.4469> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.3668.4420> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.2058.4529> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] [error] 2018-05-28T22:44:52.723000Z couchdb@##.##.##.## <0.1063.4503> 56e75f3a9b rexi_server exit:timeout [{rexi,init_stream,1,[{file,"src/rexi.erl"},{line,256}]},{rexi,stream_last,2,[{file,"src/rexi.erl"},{line,224}]},{fabric_rpc,changes,4,[{file,"src/fabric_rpc.erl"},{line,84}]},{rexi_server,init_p,3,[{file,"src/rexi_server.erl"},{line,139}]}] ```
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