1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
#!/usr/bin/node
/* jshint esnext:true */
"use strict";
const amqp = require("amqplib"),
Promise = require("bluebird"),
winston = require("winston"),
loggly = require("winston-loggly-bulk"),
Seq = require("sequelize"),
elasticsearch = require("elasticsearch");
const RABBITMQ_URI = process.env.RABBITMQ_URI || "amqp://localhost",
DATABASE_URI = process.env.DATABASE_URI,
ELASTICSEARCH_URI = process.env.ELASTICSEARCH_URI || "localhost:9200",
QUEUE = process.env.QUEUE || "reap",
INDEX = process.env.INDEX || "phase",
LOGGLY_TOKEN = process.env.LOGGLY_TOKEN,
BATCHSIZE = parseInt(process.env.BATCHSIZE) || 10,
IDLE_TIMEOUT = parseInt(process.env.IDLE_TIMEOUT) || 1000, // ms
MAXCONNS = parseInt(process.env.MAXCONNS) || 20;
const logger = new (winston.Logger)({
transports: [
new (winston.transports.Console)({
timestamp: true,
colorize: true
})
]
});
// loggly integration
if (LOGGLY_TOKEN)
logger.add(winston.transports.Loggly, {
inputToken: LOGGLY_TOKEN,
subdomain: "kvahuja",
tags: ["backend", "reaper", QUEUE],
json: true
});
amqp.connect(RABBITMQ_URI).then(async (rabbit) => {
process.on("SIGINT", () => {
rabbit.close();
process.exit();
});
// connect to rabbit & db
const seq = new Seq(DATABASE_URI, {
logging: false,
pool: {
max: MAXCONNS
}
}),
elastic = new elasticsearch.Client({ host: ELASTICSEARCH_URI, log: "info" });
const ch = await rabbit.createChannel();
await ch.assertQueue(QUEUE, { durable: true });
await ch.assertQueue(QUEUE + "_failed", { durable: true });
await ch.prefetch(BATCHSIZE);
logger.info("configuration", {
QUEUE, BATCHSIZE, MAXCONNS, IDLE_TIMEOUT
});
const model = require("../orm/model")(seq, Seq);
let phase_data = new Set();
let msg_buffer = new Set();
let idle_timer = undefined;
ch.consume(QUEUE, async (msg) => {
const payload = JSON.parse(msg.content);
phase_data.add(payload);
msg_buffer.add(msg);
// timeout after last job
if (idle_timer != undefined)
clearTimeout(idle_timer);
idle_timer = setTimeout(tryProcess, IDLE_TIMEOUT);
if (phase_data.size == BATCHSIZE)
await tryProcess();
}, { noAck: false });
// wrap process() in message handler
async function tryProcess() {
const msgs = new Set(msg_buffer);
msg_buffer.clear();
logger.info("processing batch");
// clean up to allow reaper to accept while we wait for db
clearTimeout(idle_timer);
idle_timer = undefined;
const phase_objects = new Set(phase_data);
phase_data.clear();
try {
await reap(phase_objects);
logger.info("acking batch", { size: msgs.size });
await Promise.map(msgs, async (m) => await ch.ack(m));
} catch (err) {
// log, move to error queue and NACK
logger.error(err);
await Promise.map(msgs, async (m) => {
await ch.sendToQueue(QUEUE + "_failed",
m.content, { persistent: true });
await ch.nack(m, false, false);
});
}
}
async function reap(phase_objects) {
const db_profiler = logger.startTimer(),
data = [].concat(... await Promise.map(phase_objects, async (po) => {
// TODO would be better to get all in bulk using the id
return await model.ParticipantPhases.findAll({
attributes: [
"id", "created_at", "updated_at", "start", "end",
"participant_api_id",
"kills", "deaths", "assists", /* "farm" ,*/
"minion_kills", "jungle_kills",
"non_jungle_minion_kills",
"crystal_mine_captures", "gold_mine_captures",
"kraken_captures", "turret_captures",
/*"gold",*/
"dmg_true_hero", "dmg_true_kraken",
"dmg_true_turret", "dmg_true_vain_turret",
"dmg_true_others",
"dmg_dealt_hero", "dmg_dealt_kraken",
"dmg_dealt_turret", "dmg_dealt_vain_turret",
"dmg_dealt_others",
"dmg_rcvd_dealt_hero", "dmg_rcvd_true_hero",
"dmg_rcvd_dealt_others", "dmg_rcvd_true_others",
"ability_a_level", "ability_b_level", "ability_c_level",
"hero_level",
/* scores, */
"draft_position", "ban", "pick",
/*seq.fn("COLUMN_JSON", "items"),*/
[ seq.fn("COLUMN_JSON", seq.col("participant_phases.item_grants")), "item_grants" ],
[ seq.fn("COLUMN_JSON", seq.col("participant_phases.item_sells")), "item_sells" ],
"ability_a_use", "ability_b_use", "ability_c_use",
"ability_a_damage_true", "ability_a_damage_dealt",
"ability_b_damage_true", "ability_b_damage_dealt",
"ability_c_damage_true", "ability_c_damage_dealt",
"ability_perk_damage_true", "ability_perk_damage_dealt",
"ability_aa_damage_true", "ability_aa_damage_dealt",
"ability_aacrit_damage_true", "ability_aacrit_damage_dealt",
[ seq.fn("COLUMN_JSON", seq.col("participant_phases.item_uses")), "item_uses" ]/*,
seq.fn("COLUMN_JSON", "player_damage")*/
],
where: {
"$participant.match_api_id$": po.match_api_id,
start: po.start,
end: po.end
},
include: [ {
model: model.Participant,
include: [
model.Region,
model.Hero,
model.Series,
model.GameMode,
model.Role,
model.ParticipantStats,
{
model: model.ParticipantItems,
attributes: [
"id", "shard_id", "participant_api_id",
[ seq.fn("COLUMN_JSON", seq.col("participant_items.items")), "items" ],
[ seq.fn("COLUMN_JSON", seq.col("participant_items.item_grants")), "item_grants" ],
[ seq.fn("COLUMN_JSON", seq.col("participant_items.item_uses")), "item_uses" ],
[ seq.fn("COLUMN_JSON", seq.col("participant_items.item_sells")), "item_sells" ]
],
},
model.Roster,
model.Match
]
}, {
model: model.Hero,
as: "HeroBan"
}, {
model: model.Hero,
as: "HeroPick"
} ],
raw: true
})
} ) );
db_profiler.done("database transaction");
const es_profiler = logger.startTimer();
await elastic.bulk({
body: [].concat(... data.map((d) => [
{ index: {
_index: `${INDEX}_${d.participant.series.name}`,
_type: INDEX,
_id: `${d.participant_api_id}@${d.start}+${d.end}`
} },
d
]) )
});
es_profiler.done("elastic bulk request");
}
});
process.on("unhandledRejection", (err) => {
logger.error(err);
process.exit(1); // fail hard and die
});
|
