com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db connection

解决com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db connection错误 Mongo reader = null;MongoOptions op = new MongoOptions();//处理 Out of semaphores to get db connectionop.setConnectionsPerHost(200);op.setThreadsAllowedToBlockForConnectionMultiplier(50);reader
= new Mongo(DBConfig.getValue("mongoReadIp")+":27017",op); reader.slaveOk();