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[英]Mongodb replicaset with PHP client, avoid connections between nodes
[英]MongoDB PHP replicaSet connections never close
当没有副本时连接到mongo时,例如:
new Mongo('mongodb://localhost');
一切正常,一旦超出范围,连接就会关闭,与mongo的连接总数约为10。
PRIMARY> db.serverStatus().connections;
{ "current" : 6, "available" : 19994 }
但是,当我指定一个copysetSet时,连接永远不会关闭,它们只会不断堆积,只有在我重新启动php-fpm进程时才会关闭。
new Mongo('mongodb://localhost', array("replicaSet" => "set"));
PRIMARY> db.serverStatus().connections;
{ "current" : 1298, "available" : 18702 }
最奇怪的是,Mongo应该支持多达20,000个连接。 当我达到约700个与mongo的连接时,FPM开始失败。
我在下面编写了一个小的抽象层来帮助调试问题,在这两种情况下,都会调用close()并返回true。 不会抛出异常。 有什么想法吗? 我正在使用PHP 5.3.8-1 (fpm)
和php-mongo-driver v1.2.7
class MongoDBI {
private static $_db;
private static $_mongo;
private static $_instance;
private function __construct() {
try {
self::$_mongo = new Mongo(MONGODB_SERVER, array("replicaSet" => "set"));
self::$_db = self::$_mongo->selectDB(MONGODB_DATABASE);
} catch(MongoConnectionException $e) {
log("Unable to connect to Mongo: " . $e->getMessage() . "\n");
} catch(Exception $e) {
log("Mongo: " . $e->getMessage() . "\n");
}
}
public function __destruct() {
try {
$status = self::$_mongo->close();
log("STATUS: " . $status . "\n");
} catch(Exception $e) {
log("Mongo: " . $e->getMessage() . "\n");
}
}
public static function getInstance() {
if(!isset(self::$_db))
self::$_instance = new MongoDBI();
return self::$_db;
}
}
编辑:rs.status();
PRIMARY> rs.status()
{
"set" : "somereplicaset",
"date" : ISODate("2011-11-02T20:33:14Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "node1:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"optime" : {
"t" : 1320265677000,
"i" : 1
},
"optimeDate" : ISODate("2011-11-02T20:27:57Z"),
"self" : true
},
{
"_id" : 1,
"name" : "node2:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 703192,
"optime" : {
"t" : 1320265677000,
"i" : 1
},
"optimeDate" : ISODate("2011-11-02T20:27:57Z"),
"lastHeartbeat" : ISODate("2011-11-02T20:33:13Z"),
"pingMs" : 0
}
],
"ok" : 1
}
原来这是mongo-php-driver v1.2.7中的错误,降级到1.2.6可以完全解决该问题。
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