Articles by Shiv Iyer

About Shiv Iyer

Open Source Database Systems Engineer with a deep understanding of Optimizer Internals, Performance Engineering, Scalability and Data SRE. Shiv currently is the Founder, Investor, Board Member and CEO of multiple Database Systems Infrastructure Operations companies in the Transaction Processing Computing and ColumnStores ecosystem. He is also a frequent speaker in open source software conferences globally.

MySQL Undo Logs: How Fast-Growing Undo Logs Impact Performance

How fast growing undo logs impact MySQL performance? Growing undo logs can impact MySQL performance in several ways: Increased disk space usage: As undo logs grow, they consume more disk space, which can lead to [...]

How InnoDB fill factor affect MySQL performance?

How InnoDB fill factor affect MySQL performance? InnoDB fill factor is a configuration parameter that controls how much space is reserved in the leaf pages of a B-tree index when it is created or rebuilt. [...]

Galera Cluster Performance: Troubleshooting for Better Results

Troubleshooting Galera Cluster for performance Galera Cluster is a popular solution for achieving high availability and scalability in MySQL and MariaDB databases. However, as with any distributed system, there can be performance issues that arise [...]

Replication Filter MySQL Multi-Source Replication: Per-Channel Configuration

Can we set Replication Filters per channel in MySQL Multi-Source Replication? Yes, it is possible to set replication filters per channel in MySQL Multi-Source Replication. Replication filters allow you to specify which data should be [...]

MySQL Slow Query: How Slow Queries Affect Performance

How slow queries affect MySQL performance? Slow queries can have a significant impact on the performance of a MySQL server. When a query takes a long time to execute, it can consume a large amount [...]

How expensive SQLs can impact PostgreSQL Performance?

How expensive SQLs can impact PostgreSQL Performance? Expensive SQLs can have a significant impact on PostgreSQL performance, as they consume a lot of resources and can slow down the entire system. Here are a few [...]

How expensive SQLs can impact MySQL Performance?

How expensive SQLs can impact MySQL Performance? Expensive SQLs can have a significant impact on MySQL performance, as they consume a lot of resources and can slow down the entire system. Here are a few [...]

PostgreSQL Kill: How to Kill a Process from Inside PostgreSQL

How to Kill an PostgreSQL process from inside PostgreSQL? In PostgreSQL, you can use the pg_terminate_backend() function to kill a specific process. This function takes a single argument, the process ID of the process you [...]

MySQL Table Change: Find When a Table Was Last Changed

Find When was a table last changed in MySQL? In MySQL, you can use the information_schema.tables table to determine when a table was last changed. The information_schema.tables table contains metadata about all tables in the [...]

PostgreSQL Table Change: Find When a Table Was Last Changed

Find When was a table last changed in PostgreSQL? In PostgreSQL, you can use the pg_class system catalog table to determine when a table was last changed. The pg_class table contains metadata about all tables [...]

The Data Transformation Company

Data Architecture, Engineering and Operations for SQL, NoSQL, NewSQL, Cloud Native Data Platforms, Analytics and AI