mayya-sharipova commented on a change in pull request #497: notify couch_index_processes on all shards when ddoc updated URL: https://github.com/apache/couchdb/pull/497#discussion_r113798448
########## File path: src/couch_index/test/couch_index_ddoc_updated_tests.erl ########## @@ -0,0 +1,134 @@ +% Licensed under the Apache License, Version 2.0 (the "License"); you may not +% use this file except in compliance with the License. You may obtain a copy of +% the License at +% +% http://www.apache.org/licenses/LICENSE-2.0 +% +% Unless required by applicable law or agreed to in writing, software +% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +% License for the specific language governing permissions and limitations under +% the License. + +-module(couch_index_ddoc_updated_tests). + +-include_lib("couch/include/couch_eunit.hrl"). +-include_lib("couch/include/couch_db.hrl"). + +setup() -> + DbName = ?tempdb(), + fake_mem3(DbName), + fake_index(), + + DbNames = [mem3:name(Sh) || Sh <- mem3:local_shards(mem3:dbname(DbName))], + [Db1| RestDbs] = lists:map(fun(DBName) -> + {ok, DB} = couch_db:create(DBName, [?ADMIN_CTX]), + DB + end, DbNames), + + % create a DDoc on the 1st Db + DDocID = <<"idx_name">>, + DDocJson = couch_doc:from_json_obj({[ + {<<"_id">>, DDocID}, + {<<"value">>, 1} + ]}), + {ok, _Rev} = couch_db:update_doc(Db1, DDocJson, []), + {ok, Db} = couch_db:reopen(Db1), + {ok, DDoc} = couch_db:open_doc(Db, DDocID, [ejson_body, ?ADMIN_CTX]), + Dbs = [Db | RestDbs], + {Dbs, DDoc}. + + +teardown({Dbs, _DDoc}) -> + lists:foreach(fun(Db) -> + couch_db:close(Db), + couch_server:delete(Db#db.name, [?ADMIN_CTX]) + end, Dbs), + (catch meck:unload(mem3)), + (catch meck:unload(test_index)), + ok. + + +ddoc_update_test_() -> + { + "Check ddoc update actions", + { + setup, + fun() -> test_util:start_couch([]) end, fun test_util:stop_couch/1, + { + foreach, + fun setup/0, fun teardown/1, + [ + fun ddoc_update/1 + ] + } + } + }. + + +ddoc_update({[Db | _] = Dbs, DDoc}) -> + ?_test(begin + N = length(Dbs), + DDocID = DDoc#doc.id, + + % run couch_index process for each Db + lists:foreach(fun(DB) -> + couch_index_server:get_index(test_index, DB, DDoc) + end, Dbs), + IndexesBefore = ets:match_object( + couchdb_indexes_by_db, {'$1', {DDocID, '$2'}}), + ?assertEqual(N, length(IndexesBefore)), + + % update ddoc + DDocJson2 = couch_doc:from_json_obj({[ + {<<"_id">>, DDocID}, + {<<"value">>, 2}, + {<<"_rev">>, couch_doc:rev_to_str(DDoc#doc.revs)} + ]}), + {ok, _} = couch_db:update_doc(Db, DDocJson2, []), + + % assert that all index processes exited after ddoc updated + couch_index_server:handle_db_event( + Db#db.name, {ddoc_updated, DDocID}, {st, ""}), + timer:sleep(1000), Review comment: @iilyak thanks for your comments. I will address them all in the next commit. The only thing I am not sure is how to avoid `timer:sleep`? If I check `couchdb_indexes_by_db` ETS immediately after `ddoc_updated` notification, the ETS will still contain indexes. We need to allow some time to pass for `couch_index` processes to exit, and `couch_index_server` process to clean its ETS tables. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
