wohali commented on issue #674: Flaky compaction daemon test URL: https://github.com/apache/couchdb/issues/674#issuecomment-315185827 OK looked at a couch.log. We have a race where the compaction daemon finishes compacting the test DB, then immediately starts compacting it **again**, so our check for the db to be idle fails. What I don't know is if that's a legitimate attempt to re-compact (because it is still too fragmented) or if the compaction daemon is attempting to re-compact based on old data about the state of the DB in question. ``` [info] 2017-06-16T18:49:25.122688Z nonode@nohost <0.13883.1> -------- Starting compaction for db "eunit-test-db-1497638926674066" [notice] 2017-06-16T18:49:25.383106Z nonode@nohost <0.13883.1> -------- Compaction swap for db: /home/travis/build/apache/couchdb/tmp/data/eunit-test-db-1497638926674066.couch 1646789 53445 [info] 2017-06-16T18:49:25.386118Z nonode@nohost <0.13883.1> -------- Compaction for db "eunit-test-db-1497638926674066" completed. [info] 2017-06-16T18:49:25.390952Z nonode@nohost <0.16501.1> -------- Compaction started for db: eunit-test-db-1497638926674066 idx: _design/foo [notice] 2017-06-16T18:49:25.434478Z nonode@nohost <0.13891.1> -------- Compaction swap for view /home/travis/build/apache/couchdb/tmp/data/.eunit-test-db-1497638926674066_design/mrview/ee2c720a13443ab1d50210242730ca31.view 391267 28800 [notice] 2017-06-16T18:49:25.443473Z nonode@nohost <0.13662.1> -------- config: [compactions] _default deleted for reason nil [info] 2017-06-16T18:49:25.443559Z nonode@nohost <0.16501.1> -------- Compaction finished for db: eunit-test-db-1497638926674066 idx: _design/foo [error] 2017-06-16T18:49:25.472035Z nonode@nohost <0.13891.1> -------- gen_server <0.13891.1> terminated with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) last msg: {'$gen_cast',delete} state: {st,couch_mrview_index,{mrst,<<238,44,114,10,19,68,58,177,213,2,16,36,39,48,202,49>>,<0.16503.1>,#Ref<0.0.6.37429>,<<"eunit-test-db-1497638926674066">>,<<"_design/foo">>,<<"javascript">>,[],false,false,{[]},[{mrview,0,0,0,[<<"foo3">>,<<"foo2">>,<<"foo">>],[],<<"function(doc) { emit(doc._id, doc); }">>,{btree,<0.16503.1>,{26184,{400,[]},18346},undefined,undefined,#Fun<couch_ejson_compare.less_json_ids.2>,#Fun<couch_mrview_util.17.14385612>,snappy},nil,nil,false,false,[]}],{btree,<0.16503.1>,{7946,[],7997},undefined,undefined,undefined,nil,snappy},nil,401,0,undefined,undefined,undefined,undefined,undefined,nil},<0.13894.1>,<0.13895.1>,[],false,false} [error] 2017-06-16T18:49:25.475163Z nonode@nohost <0.13891.1> -------- CRASH REPORT Process (<0.13891.1>) with 0 neighbors exited with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) at gen_server:terminate/6(line:722) <= proc_lib:init_p_do_apply/3(line:239); initial_call: {couch_index,init,['Argument__1']}, ancestors: [<0.13890.1>], messages: [], links: [<0.13894.1>,<0.13895.1>,<0.13861.1>], dictionary: [], trap_exit: false, status: running, heap_size: 2586, stack_size: 27, reductions: 31341 [error] 2017-06-16T18:49:25.476680Z nonode@nohost <0.13895.1> -------- gen_server <0.13895.1> terminated with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) last msg: {'EXIT',<0.13891.1>,{noproc,{gen_server,call,[<0.16503.1>,close,infinity]}}} state: {st,<0.13891.1>,couch_mrview_index,undefined} [error] 2017-06-16T18:49:25.477461Z nonode@nohost <0.13895.1> -------- CRASH REPORT Process (<0.13895.1>) with 0 neighbors exited with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) at gen_server:terminate/6(line:744) <= proc_lib:init_p_do_apply/3(line:239); initial_call: {couch_index_compactor,init,['Argument__1']}, ancestors: [<0.13891.1>,<0.13890.1>], messages: [], links: [], dictionary: [], trap_exit: true, status: running, heap_size: 610, stack_size: 27, reductions: 194 [error] 2017-06-16T18:49:25.478441Z nonode@nohost <0.13894.1> -------- gen_server <0.13894.1> terminated with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) last msg: {'EXIT',<0.13891.1>,{noproc,{gen_server,call,[<0.16503.1>,close,infinity]}}} state: {st,<0.13891.1>,couch_mrview_index,undefined} [error] 2017-06-16T18:49:25.479197Z nonode@nohost <0.13894.1> -------- CRASH REPORT Process (<0.13894.1>) with 0 neighbors exited with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) at gen_server:terminate/6(line:744) <= proc_lib:init_p_do_apply/3(line:239); initial_call: {couch_index_updater,init,['Argument__1']}, ancestors: [<0.13891.1>,<0.13890.1>], messages: [], links: [], dictionary: [], trap_exit: true, status: running, heap_size: 1598, stack_size: 27, reductions: 596288 [error] 2017-06-16T18:49:25.479677Z nonode@nohost <0.13861.1> -------- gen_server couch_index_server terminated with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) last msg: {'EXIT',<0.13891.1>,{noproc,{gen_server,call,[<0.16503.1>,close,infinity]}}} state: {st,"/home/travis/build/apache/couchdb/tmp/data"} [error] 2017-06-16T18:49:25.480143Z nonode@nohost <0.13861.1> -------- CRASH REPORT Process couch_index_server (<0.13861.1>) with 1 neighbors exited with reason: no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) at gen_server:terminate/6(line:744) <= proc_lib:init_p_do_apply/3(line:239); initial_call: {couch_index_server,init,['Argument__1']}, ancestors: [couch_secondary_services,couch_sup,<0.13815.1>], messages: [], links: [<0.13863.1>,<0.13824.1>], dictionary: [], trap_exit: true, status: running, heap_size: 1598, stack_size: 27, reductions: 4707 [error] 2017-06-16T18:49:25.480593Z nonode@nohost <0.13824.1> -------- Supervisor couch_secondary_services had child index_server started with couch_index_server:start_link() at <0.13861.1> exit with reason no such process or port in call to gen_server:call(<0.16503.1>, close, infinity) in context child_terminated [error] 2017-06-16T18:49:25.502120Z nonode@nohost <0.13865.1> -------- gen_server couch_compaction_daemon terminated with reason: {not_mocked,couch_compaction_daemon} at meck_proc:gen_server/3(line:450) <= meck_code_gen:exec/4(line:147) <= gen_server:handle_msg/5(line:604) <= proc_lib:init_p_do_apply/3(line:239) last msg: {'EXIT',<0.13867.1>,killed} state: {state,<0.13867.1>,[]} [error] 2017-06-16T18:49:25.502762Z nonode@nohost <0.13865.1> -------- CRASH REPORT Process couch_compaction_daemon (<0.13865.1>) with 0 neighbors exited with reason: {not_mocked,couch_compaction_daemon} at meck_proc:gen_server/3(line:450) <= meck_code_gen:exec/4(line:147) <= gen_server:handle_msg/5(line:604) <= proc_lib:init_p_do_apply/3(line:239) at gen_server:terminate/6(line:744) <= proc_lib:init_p_do_apply/3(line:239); initial_call: {couch_compaction_daemon,init,['Argument__1']}, ancestors: [couch_secondary_services,couch_sup,<0.13815.1>], messages: [], links: [<0.13824.1>], dictionary: [], trap_exit: true, status: running, heap_size: 1598, stack_size: 27, reductions: 1318 [error] 2017-06-16T18:49:25.503149Z nonode@nohost <0.13824.1> -------- Supervisor couch_secondary_services had child compaction_daemon started with couch_compaction_daemon:start_link() at <0.13865.1> exit with reason {not_mocked,couch_compaction_daemon} at meck_proc:gen_server/3(line:450) <= meck_code_gen:exec/4(line:147) <= gen_server:handle_msg/5(line:604) <= proc_lib:init_p_do_apply/3(line:239) in context child_terminated ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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