MongoDB连接池耗尽

if ( ! _waitingSem.tryAcquire() ) throw new SemaphoresOut();

_waitingSem = new Semaphore( _options.connectionsPerHost * _options.threadsAllowedToBlockForConnectionMultiplier );

public MongoOptions(){

reset();

}

publicvoidreset(){

connectionsPerHost=Bytes.CONNECTIONS_PER_HOST;

threadsAllowedToBlockForConnectionMultiplier=5;

maxWaitTime=1000*60*2;

connectTimeout=0;

socketTimeout=0;

socketKeepAlive=false;

autoConnectRetry=false;

maxAutoConnectRetryTime=0;

slaveOk=false;

safe=false;

w=0;

wtimeout=0;

fsync=false;

j=false;

dbDecoderFactory=DefaultDBDecoder.FACTORY;

socketFactory=SocketFactory.getDefault();

}