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What are the Bottlenecks of Scaling Databases & How do you solve them?

We can all agree that the amount of data in the globe is expanding exponentially and will continue, despite specific figures varying. By 2025, the daily internet traffic margin may reach 463 exabytes.

For comparison, one exabyte is equivalent to one billion gigabytes. Due to the significant rise of data, it will be necessary to use flexible database systems and cloud-managed services that can scale up in response to changing application requirements.

The current crisis calls for databases to be scalable, yet doing so will present significant challenges. Fortunately, anticipating challenges associated with data growth and remaining informed of best practices can assist in alleviating typical problems.

Data scalability - the need of the hour

When discussing data, the word “scale” is frequently used in frustratingly ambiguous ways. It encompasses various elements, each of which might be exceedingly complicated.

Data scale can comprise any of the following combinations:

  • The size of a dataset overall
  • The total amount of unique datasets you could want to connect
  • The regularity of data updates
  • The number of times data is accessed
  • The degree to which processing queries & updates is challenging
  • The distribution of data usage (ranging from a single machine to globally)


Without getting bogged down in the ugly specifics, we can define data scalability as the ability to remain unchanged when any of the components change. Data scalability is characterized by the notion that your systems will continue to function properly & you won’t even be aware of the change. 

For instance, your infrastructure is scalable if query complexity and frequency increase dramatically without affecting performance. Your data architecture is not genuinely scalable if performance declines to the point that you are unable to fulfill your objectives or your staff is unable to work.

To accommodate the application’s changing requirements and cloud migration, the database for your application should be able to grow or shrink its computational resources. A sudden increase in traffic should not be too much for your database to handle. To conserve resources, your database should also have the ability to shrink when not in use.

Finding the correct database for your needs is one of the best strategies that guarantee optimal database scalability. Database expansion and contraction on physical servers might be challenging. But cloud-managed services can do the trick!

Roadblocks in data scalability

Scalability is the system’s capacity to handle a growing workload while preserving the same latency while making cloud migration easier. For instance, let’s say that your system responds to a user request in X seconds.

Each of the one million requests from concurrent users should be answered in the same amount of time. So, what roadblocks can your application face while database scaling? Let’s look at them.

One of the main difficulties that you’ll experience when scaling your database is inefficient traffic distribution. When you have numerous servers, you must ensure that the load is distributed equally across them.

Otherwise, the system can become inefficient if one server has to handle a greater demand than the other. Even though you already have sufficient capacity on another server, the server with a high load may fail.

One of the primary bottlenecks can limit your database’s ability to scale ineffective database administration. One of the biggest obstacles to cloud migration is a poorly built database. It is critical to start selecting the suitable database for the correct business application to ensure you do not experience this bottleneck.

Your application will need to handle massive numbers of simultaneous database requests as it expands. If your program cannot manage multiple inquiries, it may crash. One of the most common difficulties is overloading the database with pointless tasks. It could cause a significant database backlog with millions of users.

One of the main bottlenecks for database scalability is slow content loading. Your application will fail if users cannot quickly find the information they are looking for. Serving a couple of hundred users is seldom a problem with content loading speed.

However, difficulties occur when millions of users try to access the content at once. The database overflows and either completely crashes or loads agonizingly slowly. The majority of users lose interest and quit the application, never to come back.

Finding the silver bullet to database scaling challenges

So, how can you solve such database scaling bottlenecks? Let’s look at the best scaling solutions.

One of the simplest ways to handle database load is by caching database queries. Along with improved availability, the cache can continue to serve the application continuously even if the database is down, strengthening the system’s ability to withstand outages. Cached data can quickly become outdated or “stale.” You must be careful when deciding which data to cache and for how long.

The strategy for accelerating data retrieval operations on a database table is database indexing. Instead of searching through every row in a database every time the table is queried, indexes are utilized to locate data quickly. By improving efficiency, effective indexing lessens the strain on the database and delivers considerable performance gains that enhance the user experience.

Many applications in cloud security companies still manage sessions by first saving the session ID as a cookie, then storing the actual data for each session’s key/value combination as a table in the database. It could end up reading and writing a tonne of data in your database. It would be a good idea to reconsider how and where that data is stored in your database is becoming overburdened with session data.

It becomes ideal for transferring session data to an in-memory caching tool. As in-memory is quicker than persistent disc storage, which most databases employ, this will reduce the weight of session data on your database and speed up access.

Replication may be the best course of action if your database is still experiencing an excessive amount of reading load despite caching frequent queries, building effective indexes, and managing session storage. You can write to a single database when using read replication. It distributes the reading strain across several servers and relieves the primary database of some of the load.

The majority of these scaling strategies up to this point have concentrated on lowering a load by controlling database reads. Database sharding is a horizontal scaling technique that controls reads and writes to the database as per demand.

It is an architectural design pattern that involves the major (master) database being divided up (partitioned) into several databases (shards), which are quicker and simpler to operate. The performance of your application’s queries can also be considerably boosted by using a sharded database architecture, which offers greater resilience to failures in cloud security companies.

Scale your database with Techmobius

A solid database scalability strategy is essential for enhanced application scaling because databases are the foundation of all applications. Today, the scalability of an application is greatly facilitated by cloud service providers like AWS, Azure, and Google cloud.

The scaling solutions can still be manually implemented if you choose. However, in most situations, you would prefer that your team concentrate on the application rather than spending too much time worrying about scalability.

As developers of scalable solutions, we at Techmobius are competent to help you scale your databases. Developers at Techmobius have developed a plethora of scalable applications that are already running million-dollar businesses. Ready to create a scalable solution for your company with cloud-managed services? Get in touch with Techmobius today!

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