
With many MongoDB deployments, it is necessary to have a setup in which one MongoDB node holds all data and others act as replicas of the data. For the sake of simplicity, the rest of this blog post will refer to these setups as master-slave setups. MongoDB’s schema is flexible, so it’s possible to use the same database for a variety of purposes. A typical master-slave setup can be used for a variety of purposes, such as: – For a cluster of MongoDB nodes that share a common load balancer – For a cluster of MongoDB nodes that use a shared file system.
What is a master-slave setup in MongoDB?
What is a Master-Slave setup?
MongoDB is a document-oriented database that stores data in a NoSQL database. A database can be set up as a Master-Slave setup where the slave is a read-only replica of the master. The slave is able to process read-only requests but is essentially useless for any updates.
How to set up a replica set in MongoDB 3.4
In this blog post, you will learn how to configure a master-slave setup in MongoDB. The process should be as follows:
Step 1: Install the MongoDB package
MongoDB should be installed on all instances that will be members of the replica set.
Step 2: Configure the replica set mode to read/write
In this step, set the replica set mode to read/write.
Step 3: Configure a seed list
This is a list of hosts that will be used as a seed for the replica set. Seed hosts should have a long uptime and low-latency connections to all other seed hosts.
Step 4: Configure a coordinator
How to add a new slave server in a MongoDB 3.4 replica set
While you can accomplish this by configuring each server one by one, it’s often convenient to set up the two servers first and then configure them one by one. Consider the following configuration:
mongodb0example.com – primary
– mongodb0example.com – slave
This set up could be set up as follows:
On mongodb01.example.com, you would start by configuring the replication. The config should indicate that it’s a primary server, what the other two servers are, and the port they should be listening on. Additionally, you should
What Are MongoDB Directory Servers and How Are They Used?
As of the date of this blog post, MongoDB has more than 2 million downloads of its free software. It is an open-source database that is completely non-relational. That is, the data is not organized into tables. Rather, it is split into fields that are delimited by commas. The database has become so popular because you can use it on any desktop, on any operating system, and the database is installed in about five minutes. One of the areas where there are many open-source databases is in directory servers. The database store information about networks, users, groups, computers, hosts, access control rules, and so forth. The directory server can be compared to a directory assistance service for businesses.
The views expressed on this blog are those of the author and do not necessarily reflect the opinions of Enteros Inc. This blog may contain links to the content of third-party sites. By providing such links, Enteros Inc. does not adopt, guarantee, approve, or endorse the information, views, or products available on such sites.
Are you interested in writing for Enteros’ Blog? Please send us a pitch!
RELATED POSTS
Growth-Ready eCommerce Operations: How Enteros Transforms Database Performance and Digital Scalability
- 24 December 2025
- Database Performance Management
Introduction The eCommerce sector is experiencing relentless growth driven by mobile commerce, omnichannel strategies, AI-powered personalization, global marketplaces, and real-time digital experiences. From flash sales and festive spikes to subscription commerce and cross-border transactions, modern eCommerce platforms operate at massive scale and velocity. At the core of this digital engine lies a complex ecosystem of … Continue reading “Growth-Ready eCommerce Operations: How Enteros Transforms Database Performance and Digital Scalability”
Optimizing Real Estate IT Economics: How Enteros Delivers Accurate Cost Estimation and Cost Attribution
Introduction The real estate sector is undergoing a fundamental digital transformation. From smart buildings and property management platforms to AI-driven valuation models, tenant experience apps, and real-time portfolio analytics, modern real estate enterprises are becoming data-intensive technology organizations. Behind every leasing platform, asset management system, CRM, IoT-enabled building dashboard, and analytics engine lies a complex … Continue reading “Optimizing Real Estate IT Economics: How Enteros Delivers Accurate Cost Estimation and Cost Attribution”
Scaling BFSI Innovation: How Enteros Aligns Performance Management, Cost Estimation, and Growth Strategy
- 23 December 2025
- Database Performance Management
Introduction The Banking, Financial Services, and Insurance (BFSI) sector is undergoing one of the most aggressive digital transformations in its history. Real-time payments, digital lending platforms, mobile banking apps, AI-driven fraud detection, open banking APIs, regulatory reporting systems, and wealth management platforms all rely on high-performing, always-available data infrastructure. At the heart of this digital … Continue reading “Scaling BFSI Innovation: How Enteros Aligns Performance Management, Cost Estimation, and Growth Strategy”
Healthcare IT Reinvented: How Enteros Delivers High-Performance Databases with Cloud FinOps Governance
Introduction Healthcare organizations are undergoing one of the most complex digital transformations of any industry. Electronic Health Records (EHRs), telemedicine platforms, clinical research systems, patient engagement apps, AI-assisted diagnostics, and revenue cycle management tools all rely on high-performing, always-available databases running across cloud and hybrid infrastructures. However, as healthcare IT ecosystems expand, so do the … Continue reading “Healthcare IT Reinvented: How Enteros Delivers High-Performance Databases with Cloud FinOps Governance”