我试图通过连接到我的副本集的主节点find_one。 MongoClient(hostname, replicaSet="rs0", read_preference=ReadPreference.PRIMARY)
但它导致一个错误: ServerSelectionTimeoutError: No replica set members match selector "Primary()" 我能
我的文档如下所示。 {
"_id" : ObjectId("572c4bffd073dd581edae045"),
"name" : "What's New in PHP 7",
"description" : "PHP 7 is the first new major version number of PHP since 2004. This course shows what's ne