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Difference Between Couchbase and MongoDB

Difference Between Couchbase and MongoDB

An essential component in handling, managing, and working with the data is a NoSQL database. The CouchBase Training Server and MongoDB NoSQL databases will be covered in detail in this tutorial. We may choose which database to use to satisfy client requests by comparing the two NoSQL server databases. Become a master in database management systems through our MongoDB Training in Chennai at Softlogic Systems.

A few tools are necessary for the administration of this data since data now control the technological world. We must consider a NoSQL database’s adaptability, extensibility, appearance, and accessibility while making our selection.

The subjects listed below will be covered in today’s lesson so that you can fully comprehend how Couchbase and MongoDB differ from one another. When deciding between these two NoSQL databases, one will be able to make informed judgments as a result.

Describe MongoDB

A NoSQL document database is MongoDB. It is utilized to store large amounts of data. This database first became public in the middle of the 2000s.

Instead of using tables and rows, MongoDB employs collections (sets of documents and functions) and documents, which are made up of key-value pairs. In MongoDB, key-value pairs are the fundamental data type, although the collection of documents and functions is analogous to relational database tables.

With its excellent specification, the WiredTiger optional storage engine, MongoDB is a significant database server. The writing performance of the MongoDB server is enhanced by this engine about 10 times more than by the default one.

Describe Couchbase

A NoSQL document-oriented database called Couchbase Server is used for interactive web applications. It combines two well-known NoSQL technologies:

Membase — It offers high-speed Memcached technology replication, durability, and sharding.

CouchDB: It invented the JSON-based, document-oriented approach. Here are a few characteristics of Couchbase:

  • The scalability is simple.
  • It routinely delivers a high level of performance.
  • It has a flexible data mode.
  • It has a 100% uptime rate for serving application data.

Major Differences: Couchbase and MongoDB

The following table lists the main distinctions between Couchbase and MongoDB

Major Differences: Couchbase and MongoDB
DistributionUniform DistributionMulti-dimensioned distribution
FunctionDistributed Query Processing and Merging from Intermediate results.Every shard or node’s data, queries, and indexes are managed by it.
RoleIt serves as the coordinatorIt serves as the worker bee
Data ModelIt has a document value and a key value.The sole document type in the data model.
QueryN1QL, key-value, and ad-hoc views are used in the query.The query is an aggregated Ad-hoc and MapReduce query.
ConcurrencyIt locks in both optimism and pessimism.With WiredTiger, an optional storage machine, there is both optimistic and pessimistic locking.
StorageUp to 20 MB’s worth of binary data may be stored in it.It can fit enormous files into a vast array of papers.
ScalabilityIts master-master scaling paradigm makes it simple.Its master-slave structure makes it complex.
FragmentationIt completely fragments on its own.We are responsible for selecting the technique of fragmentation and the fragment key.
Mobile ResolutionMobile App will be supportedMobile apps will not be supported
Performance over a wide number of datacentersIt does all writing operations locally due to its straightforward design and duplication facility.Its design prevents it from performing all of the write operations.
External CacheIt doesn’t require an outside cache.It needs an outside cache.
Time Management and ConsumptionIt is easy to deploy and does not consume time.It consumes time and management.

Comparing Couchbase with MongoDB in-depth

For data standardization, the data that does not need to be maintained in memory is utilized. Because of this, the quantity of read and write operations carried out by both servers is almost comparable. We shall learn how and in what ways the two servers’ function outside of the memory when the data is used in a location other than the memory.

The maximum amount of time that the read and write activity can remain dormant mode is 5 milliseconds. The read and write idleness must exceed the normal time of 5 milliseconds before the performance of the Couchbase and MongoDB servers can be assessed at what level they both perform as the number of clients increases continually.The two servers, which may be utilized on both single and numerous servers, are both document storage facilities. They also run differently from one another despite the fact that they are both NoSQL servers.

Data Model

The Couchbase database uses both document and key-value data models. Every document will begin with a key value since all documents have keys and the Couchbase server’s data model is both document-based and key-valued. It may be utilized for both query and index services.

MongoDB, on the other hand, only offers a document-type data model. The primary design consideration for these is on the document structure as well as how the MongoDB application represents the connections between the data. When utilizing MongoDB, all relevant data may be contained within a single document.


The Couchbase server query uses key-values, Ad-hoc views, and N1QL. Documents are kept in collections that are in scopes in Couchbase Server 7.0 and later. Scopes are kept in namespaces as buckets. The query engine should be aware of the collection’s whole route.

The MongoDB query is an aggregated Ad-hoc and MapReduce query. It functions similarly to SQL queries and aids in data retrieval from the MongoDB database. Criteria or conditions can also be used during a query operation to get certain data from the database.


The Couch Base Server implements both optimistic and pessimistic locking in terms of concurrency. With just one node, Couchbase can accommodate a sizable number of users without suffering any performance penalties.

The MongoDB server offers optional WiredTiger storage machines in addition to both optimistic and pessimistic locking. With an increase in consumers, the quality of its work quickly declines. MongoDB can’t handle many consumers; as soon as that number rises, its performance begins to decline.For providing a large number of consumers using MongoDB, which is quite expensive, we need to add more tools.



Up to 20 MB of binary data can be stored on the Couchbase server. On the disk, it keeps some items in compressed form. It takes them away when necessary. Therefore, data sets may be larger than what is supported by the available memory resources. This is so that, even when they are not currently in memory, the undeleted things can be brought back into memory from the disk. Additionally, it supports backup and restoration operations.

The MongoDB server is capable of storing enormous files in an enormous number of documents. The Couchbase server may still be used with a separate storage service to keep metadata on the binaries even though the MongoDB server can store bigger binaries.


While Mongo DB uses both master and slave duplicate sets as its scaling approach, Couchbase uses a distributed master-master scaling architecture. Being masterless, Couchbase always maintains a backup copy of its original document that may be utilized in the event that the original file becomes corrupted.

From a particular duplicate set to a completely fractured frame, MongoDB is difficult to grow. It is difficult to grow from one duplicate copy to produce a fully fractured frame because MongoDB has a master and a slave structure. This is because there are many moving elements and physical components involved.


By allocating hash space to each node in the data cluster, Couchbase splits the data before counting horizontally. The key found in each document determines where to place the hash space for a certain node.Since MongoDB’s data model is totally document-based, a fragmenting technique and key must be chosen in order to fragment the data. You may get the precise location of the document in the cluster using this fragment key.

MongoDB depends on us to select the fragment key and the fragmenting mechanism, but the Couchbase server handles all fragmentation on its own and without human involvement.

The facility of a Mobile Resolution

Since MongoDB does not support mobile apps, you must create your own code for the apps, which means you must constantly have an internet connection in order to utilize your apps.

Couchbase fully supports mobile devices and aids with the creation of apps that can be used with or without an online connection.

The Facility Of A Mobile Resolution

Time management and consumption

Given its straightforward setup, installation, configuration, and ease of adding and removing nodes, Couchbase is incredibly simple to deploy.

MongoDB requires a lot of physical and additional setups, and its use is extremely challenging, sophisticated, and multi-faceted.

Ability to Function in a Lot of Data Centers

When used across a large number of data centers, Couchbase executes all write operations locally thanks to its straightforward design and duplicate feature. As a result, idleness is reduced and performance is elevated.MongoDB’s design prevents it from performing all write operations when used across several data centers.

Need for an External Cache to Help It Complete

Due to the MongoDB server’s limitations, we must install an additional cache to help with customer service, which adds additional expenses and complexity.

With its entirely integrated and ordered entity cache, Couchbase requires no external expenditures at all. It is a more effective caching method that costs less.


We believe this post provided you with a useful comparison between Couchbase and MongoDB. Although MongoDB and Couchbase have many similarities, understanding the differences may tremendously benefit both developers and industry specialists.

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