0

我在连接到副本集(4 db + 1 arbiter)时遇到问题。

基准:

<?php
echo "rp: nearest" . PHP_EOL;
$m = new MongoClient("mongodb://app1.n.prod,app1.m.prod,app2.m.prod,app1.d.prod/?replicaSet=booklet&readPreference=nearest&readPreferenceTags=dc:nsk");

echo "rp: primary" . PHP_EOL;
$m = new MongoClient("mongodb://app1.n.prod,app1.m.prod,app2.m.prod,app1.d.prod/?replicaSet=booklet&readPreference=primary");

echo "rp: secondary" . PHP_EOL;
$m = new MongoClient("mongodb://app1.n.prod,app1.m.prod,app2.m.prod,app1.d.prod/?replicaSet=booklet&readPreference=secondary");

echo "localhost, rs" . PHP_EOL;
$m = new MongoClient("mongodb://localhost/?replicaSet=booklet");

echo "rp: secondary, without rs" . PHP_EOL;
$m = new MongoClient("mongodb://app1.n.prod,app1.m.prod,app2.m.prod,app1.d.prod/?readPreference=secondary");

echo "localhost, without rs" . PHP_EOL;
$m = new MongoClient("mongodb://localhost");

结果(php microtime(true)中的时间):

rp: nearest
1422547256.97
1422547258.8778
rp: primary
1422547258.8778
1422547259.7998
rp: secondary
1422547259.7999
1422547260.7213
localhost, rs
1422547260.7213
1422547260.7223
rp: secondary, without rs
1422547260.7223
1422547261.4674
localhost, without rs
1422547261.4674
1422547261.4683

为什么连接到副本集需要这么长时间?(每个连接 1 秒)

4

1 回答 1

0

尝试使用 ip 代替域名:

$m = new MongoClient("mongodb://10.10.0.100:27017,10.10.0.101:27017,10.10.0.102:27017/?replicaSet=booklet&readPreference=nearest&readPreferenceTags=dc:nsk");
于 2015-03-30T15:23:18.890 回答