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Posted to commits@couchdb.apache.org by ko...@apache.org on 2011/10/26 20:05:33 UTC
[41/50] git commit: Add test 201-view-group-shutdown.t (COUCHDB-1283)
Add test 201-view-group-shutdown.t (COUCHDB-1283)
git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@1173442 13f79535-47bb-0310-9956-ffa450edef68
Project: http://git-wip-us.apache.org/repos/asf/couchdb/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb/commit/148f6850
Tree: http://git-wip-us.apache.org/repos/asf/couchdb/tree/148f6850
Diff: http://git-wip-us.apache.org/repos/asf/couchdb/diff/148f6850
Branch: refs/heads/1319-large-headers-are-corrupted
Commit: 148f6850b62225ea058428121882cf7f3753223b
Parents: a04adda
Author: Filipe David Borba Manana <fd...@apache.org>
Authored: Wed Sep 21 00:40:19 2011 +0000
Committer: Filipe David Borba Manana <fd...@apache.org>
Committed: Wed Sep 21 00:40:19 2011 +0000
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test/etap/201-view-group-shutdown.t | 291 ++++++++++++++++++++++++++++++
test/etap/Makefile.am | 1 +
2 files changed, 292 insertions(+), 0 deletions(-)
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http://git-wip-us.apache.org/repos/asf/couchdb/blob/148f6850/test/etap/201-view-group-shutdown.t
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diff --git a/test/etap/201-view-group-shutdown.t b/test/etap/201-view-group-shutdown.t
new file mode 100755
index 0000000..2fabef6
--- /dev/null
+++ b/test/etap/201-view-group-shutdown.t
@@ -0,0 +1,291 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+% 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.
+
+-record(user_ctx, {
+ name = null,
+ roles = [],
+ handler
+}).
+
+-record(db, {
+ main_pid = nil,
+ update_pid = nil,
+ compactor_pid = nil,
+ instance_start_time, % number of microsecs since jan 1 1970 as a binary string
+ fd,
+ updater_fd,
+ fd_ref_counter,
+ header = nil,
+ committed_update_seq,
+ fulldocinfo_by_id_btree,
+ docinfo_by_seq_btree,
+ local_docs_btree,
+ update_seq,
+ name,
+ filepath,
+ validate_doc_funs = [],
+ security = [],
+ security_ptr = nil,
+ user_ctx = #user_ctx{},
+ waiting_delayed_commit = nil,
+ revs_limit = 1000,
+ fsync_options = [],
+ options = [],
+ compression
+}).
+
+main_db_name() -> <<"couch_test_view_group_shutdown">>.
+
+
+main(_) ->
+ test_util:init_code_path(),
+
+ etap:plan(17),
+ case (catch test()) of
+ ok ->
+ etap:end_tests();
+ Other ->
+ etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
+ etap:bail(Other)
+ end,
+ ok.
+
+
+test() ->
+ couch_server_sup:start_link(test_util:config_files()),
+ ok = couch_config:set("couchdb", "max_dbs_open", "3", false),
+ ok = couch_config:set("couchdb", "delayed_commits", "false", false),
+ crypto:start(),
+
+ % Test that while a view group is being compacted its database can not
+ % be closed by the database LRU system.
+ test_view_group_compaction(),
+
+ couch_server_sup:stop(),
+ ok.
+
+
+test_view_group_compaction() ->
+ {ok, DbWriter3} = create_db(<<"couch_test_view_group_shutdown_w3">>),
+ ok = couch_db:close(DbWriter3),
+
+ {ok, MainDb} = create_main_db(),
+ ok = couch_db:close(MainDb),
+
+ {ok, DbWriter1} = create_db(<<"couch_test_view_group_shutdown_w1">>),
+ ok = couch_db:close(DbWriter1),
+
+ {ok, DbWriter2} = create_db(<<"couch_test_view_group_shutdown_w2">>),
+ ok = couch_db:close(DbWriter2),
+
+ Writer1 = spawn_writer(DbWriter1#db.name),
+ Writer2 = spawn_writer(DbWriter2#db.name),
+ etap:is(is_process_alive(Writer1), true, "Spawned writer 1"),
+ etap:is(is_process_alive(Writer2), true, "Spawned writer 2"),
+
+ etap:is(get_writer_status(Writer1), ok, "Writer 1 opened his database"),
+ etap:is(get_writer_status(Writer2), ok, "Writer 2 opened his database"),
+
+ {ok, MonRef} = couch_mrview:compact(MainDb#db.name, <<"_design/foo">>, [monitor]),
+
+ % Add some more docs to database and trigger view update
+ {ok, MainDb2} = couch_db:open_int(MainDb#db.name, []),
+ ok = populate_main_db(MainDb2, 3, 3),
+ update_view(MainDb2#db.name, <<"_design/foo">>, <<"foo">>),
+ ok = couch_db:close(MainDb2),
+
+ % Assuming the view compaction takes more than 50ms to complete
+ ok = timer:sleep(50),
+ Writer3 = spawn_writer(DbWriter3#db.name),
+ etap:is(is_process_alive(Writer3), true, "Spawned writer 3"),
+
+ etap:is(get_writer_status(Writer3), {error, all_dbs_active},
+ "Writer 3 got {error, all_dbs_active} when opening his database"),
+
+ etap:is(is_process_alive(Writer1), true, "Writer 1 still alive"),
+ etap:is(is_process_alive(Writer2), true, "Writer 2 still alive"),
+ etap:is(is_process_alive(Writer3), true, "Writer 3 still alive"),
+
+ receive
+ {'DOWN', MonRef, process, _, normal} ->
+ etap:diag("View group compaction successful"),
+ ok;
+ {'DOWN', MonRef, process, _, _Reason} ->
+ etap:bail("Failure compacting view group")
+ end,
+
+ ok = timer:sleep(2000),
+
+ etap:is(writer_try_again(Writer3), ok,
+ "Told writer 3 to try open his database again"),
+ etap:is(get_writer_status(Writer3), ok,
+ "Writer 3 was able to open his database"),
+
+ etap:is(is_process_alive(Writer1), true, "Writer 1 still alive"),
+ etap:is(is_process_alive(Writer2), true, "Writer 2 still alive"),
+ etap:is(is_process_alive(Writer3), true, "Writer 3 still alive"),
+
+ etap:is(stop_writer(Writer1), ok, "Stopped writer 1"),
+ etap:is(stop_writer(Writer2), ok, "Stopped writer 2"),
+ etap:is(stop_writer(Writer3), ok, "Stopped writer 3"),
+
+ delete_db(MainDb),
+ delete_db(DbWriter1),
+ delete_db(DbWriter2),
+ delete_db(DbWriter3).
+
+
+create_main_db() ->
+ {ok, Db} = create_db(main_db_name()),
+ DDoc = couch_doc:from_json_obj({[
+ {<<"_id">>, <<"_design/foo">>},
+ {<<"language">>, <<"javascript">>},
+ {<<"views">>, {[
+ {<<"foo">>, {[
+ {<<"map">>, <<"function(doc) { emit(doc._id, doc); }">>}
+ ]}},
+ {<<"foo2">>, {[
+ {<<"map">>, <<"function(doc) { emit(doc._id, doc); }">>}
+ ]}},
+ {<<"foo3">>, {[
+ {<<"map">>, <<"function(doc) { emit(doc._id, doc); }">>}
+ ]}},
+ {<<"foo4">>, {[
+ {<<"map">>, <<"function(doc) { emit(doc._id, doc); }">>}
+ ]}},
+ {<<"foo5">>, {[
+ {<<"map">>, <<"function(doc) { emit(doc._id, doc); }">>}
+ ]}}
+ ]}}
+ ]}),
+ {ok, _} = couch_db:update_doc(Db, DDoc, []),
+ ok = populate_main_db(Db, 1000, 20000),
+ update_view(Db#db.name, <<"_design/foo">>, <<"foo">>),
+ {ok, Db}.
+
+
+populate_main_db(Db, BatchSize, N) when N > 0 ->
+ Docs = lists:map(
+ fun(_) ->
+ couch_doc:from_json_obj({[
+ {<<"_id">>, couch_uuids:new()},
+ {<<"value">>, base64:encode(crypto:rand_bytes(1000))}
+ ]})
+ end,
+ lists:seq(1, BatchSize)),
+ {ok, _} = couch_db:update_docs(Db, Docs, []),
+ populate_main_db(Db, BatchSize, N - length(Docs));
+populate_main_db(_Db, _, _) ->
+ ok.
+
+
+update_view(DbName, DDocName, ViewName) ->
+ {ok, Db} = couch_db:open_int(DbName, []),
+ {ok, DDoc} = couch_db:open_doc(Db, DDocName, [ejson_body]),
+ couch_mrview:query_view(Db, DDoc, ViewName, [{stale, false}]),
+ ok = couch_db:close(Db),
+ etap:diag("View group updated").
+
+
+create_db(DbName) ->
+ {ok, Db} = couch_db:create(
+ DbName,
+ [{user_ctx, #user_ctx{roles = [<<"_admin">>]}}, overwrite]),
+ {ok, Db}.
+
+
+delete_db(#db{name = DbName, main_pid = Pid}) ->
+ ok = couch_server:delete(
+ DbName, [{user_ctx, #user_ctx{roles = [<<"_admin">>]}}]),
+ MonRef = erlang:monitor(process, Pid),
+ receive
+ {'DOWN', MonRef, process, Pid, _Reason} ->
+ ok
+ after 30000 ->
+ etap:bail("Timeout deleting database")
+ end.
+
+
+spawn_writer(DbName) ->
+ Parent = self(),
+ spawn(fun() ->
+ process_flag(priority, high),
+ writer_loop(DbName, Parent)
+ end).
+
+
+get_writer_status(Writer) ->
+ Ref = make_ref(),
+ Writer ! {get_status, Ref},
+ receive
+ {db_open, Ref} ->
+ ok;
+ {db_open_error, Error, Ref} ->
+ Error
+ after 5000 ->
+ timeout
+ end.
+
+
+writer_try_again(Writer) ->
+ Ref = make_ref(),
+ Writer ! {try_again, Ref},
+ receive
+ {ok, Ref} ->
+ ok
+ after 5000 ->
+ timeout
+ end.
+
+
+stop_writer(Writer) ->
+ Ref = make_ref(),
+ Writer ! {stop, Ref},
+ receive
+ {ok, Ref} ->
+ ok
+ after 5000 ->
+ etap:bail("Timeout stopping writer process")
+ end.
+
+
+% Just keep the database open, no need to actually do something on it.
+writer_loop(DbName, Parent) ->
+ case couch_db:open_int(DbName, []) of
+ {ok, Db} ->
+ writer_loop_1(Db, Parent);
+ Error ->
+ writer_loop_2(DbName, Parent, Error)
+ end.
+
+writer_loop_1(Db, Parent) ->
+ receive
+ {get_status, Ref} ->
+ Parent ! {db_open, Ref},
+ writer_loop_1(Db, Parent);
+ {stop, Ref} ->
+ ok = couch_db:close(Db),
+ Parent ! {ok, Ref}
+ end.
+
+writer_loop_2(DbName, Parent, Error) ->
+ receive
+ {get_status, Ref} ->
+ Parent ! {db_open_error, Error, Ref},
+ writer_loop_2(DbName, Parent, Error);
+ {try_again, Ref} ->
+ Parent ! {ok, Ref},
+ writer_loop(DbName, Parent)
+ end.
http://git-wip-us.apache.org/repos/asf/couchdb/blob/148f6850/test/etap/Makefile.am
----------------------------------------------------------------------
diff --git a/test/etap/Makefile.am b/test/etap/Makefile.am
index 0f64631..8d3cbfc 100644
--- a/test/etap/Makefile.am
+++ b/test/etap/Makefile.am
@@ -86,6 +86,7 @@ EXTRA_DIST = \
180-http-proxy.t \
190-json-stream-parse.t \
200-view-group-no-db-leaks.t \
+ 201-view-group-shutdown.t \
210-os-proc-pool.t \
220-compaction-daemon.t \
230-httpc-pool.t \