macbook replica

In the previous article "MongoDB Master-Slave Model Building Example", we have a simple introduction to how to build a master-slave architecture of the MONGODB server environment. However, for the master-slave structure, MONGODB officials do not recommend that we use, probably because the master-slave mode has the following two disadvantages:(1) After the primary node is not available, it cannot automatically switch to the slave node and cannot ensure the uninterrupted operation of the business

Apple released this month's 13-inch Retina MacBook Pro, in addition to upgrading the internal main configuration, but also added a new Force touch trackpad, so there is still a need to disassemble again, let everyone see the new Force touch under the hidden secrets. If you want to learn about the performance of the new 13-inch Retina MacBook Pro, you can view our review articles. Bu

In each MongoDB instance, there is a local database that stores information about the Replication process and local data. The local database is characterized by the fact that data and collections located in the local database are not copied to other MongoDB instance by the Replication process. If some collection and data on the instance are not scheduled to be copied to other MongoDB Instance, these collection and data can be stored in the local database.The MongoDB shell provides a global varia

Original link: "MongoDB" Windows platform build MONGO database replica set (similar cluster) (i)Replica sets (replica set) is a new feature that starts with the mongodDB1.6 version, which enables automatic failover and automatic repair of feature member nodes, and the data between each db is exactly the same, greatly reducing the risk of a single point of failure

In addition to the launch of Apple Watch and the new MacBook at the spring launch, the company has also made regular updates for the existing MacBook Air and Pro series computers. Apple's China website store has officially sold 2015 MacBook Air and MacBook Pro, which is expected to be shipped 1-3 working days. Accor

I. MongoDB replica set introduction MongoDB's replication mechanism is mainly divided into two types: Master-Slave (Master-Slave replication), which is no longer recommended to use the new features developed by ReplicaSet (replica set) MongoDB in version 1.6, the MongoDB replica set is recommended to be more powerful than the previous Master-Slave architecture. I

On the one hand, as the ultimate portable notebook, Apple's 12-inch new MacBook is an excellent choice for frequent business travelers. But at the same time, because the 12-inch new MacBook's minimalist design has only one interface, the use of the Environment (wireless network environment) has a high demand, otherwise not in the wireless life advocated by Apple to do a good job. But precisely, the business traveler is unable to guarantee this point,

Apple released its new 2015 11-inch MacBook in California on March 10, while also updating the MacBook Air, so what's the difference between the new MacBook Air and the old one in terms of design and hardware? The famous electronic equipment dismantling team IFixit for everyone Two new MacBook Air (11 inches and 13 inc

the concept of a replica set A replica set is a set of servers, one of which is the primary server (primary), used to process client requests, and multiple backup servers (secondary) to hold data replicas of the primary server. If the primary server crashes, the backup server automatically upgrades one of the members to the new primary server. Bj1-farm1:primary> Rs.ismaster () { "SetName": "Bj1-farm1", "S

Introduction to the high availability of a replica set the replica set achieves high availability through automatic failover. When the master node fails, the slave node can be elected as the master node, in most cases, this process is automatically performed without manual intervention. In some cases, data rollback is required for automatic failover. Deployment method of

Hyper-V Server replica technologyI'm going to talk to you today. Hyper-V Replica technology, Hyper-V replica technology is a new feature of Microsoft in Windows Server 2012. The Hyper-V replica feature enables administrators to make virtual machines (VMS) replicate over the network asynchronously for disaster recovery

Tags: restore long command Ted Ima section and near startMongoDB Replica Set Introduction to Replication Sets A MongoDB replica set consists of a set of Mongod instances (processes) that contain one primary node and multiple secondary nodes, and all data from MongoDB Driver (client) is written to primary, Secondary writes data synchronously from primary to keep all members of the replication set stored in t

"13-inch MacBook pro", with touch bar version and "15-inch MacBook pro" three new models. As the press conference starts 1 o'clock in the morning 28th in Beijing, many friends may not know much about them. I'm not going to beat around the bush, let's start with this new updated "13-inch MacBook pro", with touch strips, "15-inch

The new MacBook has been in the market for a while, with its ultra-thin, new processors, stronger battery endurance and a new color palette that may be tempting for many consumers, if you've never been in touch with an Apple device or a MacBook before, before you're ready to buy a MacBook, Just take a little time to understand these 5 things. Faster

The new MacBook has been in the market for a while, with its ultra-thin, new processors, stronger battery endurance and a new color palette that may be tempting for many consumers, if you've never been in touch with an Apple device or a MacBook before, before you're ready to buy a MacBook, Just take a little time to understand these 5 things. Faster

Tags: MongoDB replica setWhat is a MongoDB replica set:A MongoDB replica set is a cluster of replicas consisting of a set of MongoDB servers. The cluster contains a primary master server and several secondary backup servers or Artiber election servers. Secondary synchronizes data to the primary server, enabling data backup of the servers in the cluster. When prim

Https://help.ubuntu.com/community/MacBookProDetermine your hardware revisionTo determine which version/generation of the MacBook Pro you have multiple options:From the GUI in OS XClick on the Apple in the top left > ' about this Mac ' > ' more Info ... ' > ' Overview ' > ' System report ... ' > "Hardware" in Left-Hand panel > "Hardware Overview" in Right-hand panel > "Model Identifier". This is a string like "macbookpro11,1".From the Terminal in Ubunt

Using the Mac OS X 10.7 Lion operating system, the MacBook Air uses multi-touch gestures on OS X to operate the MacBook Air more smoothly, naturally, and intuitively. January 15, 2008, Apple released its first ultra-thin notebook computer--macbook Air, thin and unique, the industry shocked! In October 2010, Apple released its second generation MBA. The up

Apple's MacBook notebook, because of its shape design is very beautiful, has been a lot of people like. It is also designed to be different from the common PC notebooks, and the screws used are not the same. After a long period of use, you may want to clean the fan inside it, or some other reason to need to disassemble the machine. So how does a MacBook dismantle a machine? The following small series for ev

Apple quietly released a new version of the MacBook Air, the main upgrade of the processor and provide a lower price, but the design has not changed, there is no expectations of the retina screen, then it is worth buying it? together to explore. The new MacBook Air in the domestic price of 6288 yuan (11 inch 128GB version), the processor compared to a small upgrade before, from the 1.3GHz frequency of the