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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2009. All Rights Reserved.
%%
%% 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.
%%
%% %CopyrightEnd%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% File : bench_populate.hrl
%%% Author : Hakan Mattsson <[email protected]>
%%% Purpose : Populate the database
%%% Created : 21 Jun 2001 by Hakan Mattsson <[email protected]>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-module(bench_populate).
-author('[email protected]').
-include("bench.hrl").
%% Public
-export([start/1]).
%% Populate the database
start(C) when is_record(C, config) ->
?d("~n",[]),
?d("Populate database...~n",[]),
?d("~n",[]),
create_tables(C),
Populate =
fun() ->
populate_subscriber(write, C),
populate_group(write, C),
populate_server(write, C)
end,
mnesia:activity(sync_dirty, Populate, [], mnesia_frag).
%% -------------------------------------------------------------------
%% Create the tables
%% -------------------------------------------------------------------
create_tables(C) ->
?d(" Delete old tables...~n",[]),
mnesia:delete_table(group),
mnesia:delete_table(subscriber),
mnesia:delete_table(session),
mnesia:delete_table(server),
mnesia:delete_table(suffix),
?d(" Creating ~p tables, with ~p replicas distributed over ~p nodes...~n",
[C#config.storage_type,
C#config.n_replicas,
length(C#config.table_nodes)]),
%% Create group table
GroupDef = [{C#config.storage_type, C#config.table_nodes},
{attributes, record_info(fields, group)}],
?APPLY(mnesia, create_table, [group, GroupDef]),
%% Create suffix table
FragStorage =
case C#config.storage_type of
ram_copies -> n_ram_copies;
disc_copies -> n_disc_copies;
disc_only_copies -> n_disc_only_copies
end,
FragProps =
[{FragStorage, C#config.n_replicas},
{node_pool, C#config.table_nodes},
{n_fragments, C#config.n_fragments}],
SuffixDef = [{frag_properties, FragProps}],
?APPLY(mnesia, create_table, [suffix, SuffixDef]),
%% Create subscriber table
SubscriberDef =
[{frag_properties, [{foreign_key, {suffix, #subscriber.suffix}} | FragProps]},
{attributes, record_info(fields, subscriber)}],
?APPLY(mnesia, create_table, [subscriber, SubscriberDef]),
%% Create session table
SessionDef =
[{frag_properties, [{foreign_key, {suffix, #session.suffix}} | FragProps]},
{attributes, record_info(fields, session)}],
?APPLY(mnesia, create_table, [session, SessionDef]),
%% Create server table
ServerDef =
[{frag_properties, [{foreign_key, {suffix, #server.suffix}} | FragProps]},
{attributes, record_info(fields, server)}],
?APPLY(mnesia, create_table, [server, ServerDef]).
%% -------------------------------------------------------------------
%% Populate the subscriber table
%% -------------------------------------------------------------------
populate_subscriber(Wlock, C) ->
random:seed(),
N = C#config.n_subscribers,
?d(" Populate ~p subscribers...", [N]),
do_populate_subscriber(Wlock, N - 1, C).
do_populate_subscriber(Wlock, Id, C) when Id >= 0 ->
Suffix = bench_trans:number_to_suffix(Id),
SubscrId = bench_trans:number_to_key(Id, C),
Name = list_to_binary([random:uniform(26) + $A - 1]),
GroupId = random:uniform(C#config.n_groups) - 1,
Subscr = #subscriber{subscriber_number = SubscrId,
subscriber_name = Name,
group_id = GroupId,
location = 0,
active_sessions = 0,
changed_by = <<"">>,
changed_time = <<"">>,
suffix = Suffix},
?APPLY(mnesia, write, [subscriber, Subscr, Wlock]),
do_populate_subscriber(Wlock, Id - 1, C);
do_populate_subscriber(_Wlock, _, _) ->
io:format(" totally ~p bytes~n",
[mnesia:table_info(subscriber, memory) * 4]),
ok.
%% -------------------------------------------------------------------
%% Populate the group table
%% -------------------------------------------------------------------
populate_group(Wlock, C) ->
random:seed(),
N = C#config.n_groups,
?d(" Populate ~p groups...", [N]),
do_populate_group(Wlock, N - 1, C).
do_populate_group(Wlock, Id, C) when Id >= 0 ->
Name = list_to_binary(["-group ", integer_to_list(Id), "-"]),
Allow = init_allow(C),
Group = #group{group_id = Id,
group_name = Name,
allow_read = Allow,
allow_insert = Allow,
allow_delete = Allow},
?APPLY(mnesia, write, [group, Group, Wlock]),
do_populate_group(Wlock, Id - 1, C);
do_populate_group(_Wlock, _, _) ->
io:format(" totally ~p bytes~n",
[mnesia:table_info(group, memory) * 4]),
ok.
init_allow(C) ->
do_init_allow(0, C#config.n_servers - 1).
do_init_allow(Allow, NS) when NS >= 0 ->
case random:uniform(100) < (90 + 1) of
true ->
ServerBit = 1 bsl NS,
do_init_allow(Allow bor ServerBit, NS - 1);
false ->
do_init_allow(Allow, NS - 1)
end;
do_init_allow(Allow, _) ->
Allow.
%% -------------------------------------------------------------------
%% Populate the server table
%% -------------------------------------------------------------------
populate_server(Wlock, C) ->
random:seed(),
N = C#config.n_servers,
?d(" Populate ~p servers with 100 records each...", [N]),
do_populate_server(Wlock, N - 1).
do_populate_server(Wlock, Id) when Id >= 0 ->
populate_server_suffixes(Wlock, Id, 99),
do_populate_server(Wlock, Id - 1);
do_populate_server(_Wlock, _) ->
io:format(" totally ~p bytes~n",
[mnesia:table_info(server, memory) * 4]),
ok.
populate_server_suffixes(Wlock, Id, Suffix) when Suffix >= 0 ->
Name = list_to_binary(["-server ", integer_to_list(Id), "-"]),
Server = #server{server_key = {Id, Suffix},
server_name = Name,
no_of_read = 0,
no_of_insert = 0,
no_of_delete = 0,
suffix = Suffix},
?APPLY(mnesia, write, [server, Server, Wlock]),
populate_server_suffixes(Wlock, Id, Suffix - 1);
populate_server_suffixes(_Wlock, _, _) ->
ok.
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