Percona

DECEMBER 29, 2022

While working as a DBA, we perform many regular tasks, and one of them is upgrading our database systems. There are some techniques to perform a PostgreSQL database upgrade, such as data dump and import, logical replication, or in-site upgrade using pg_upgrade. for lib in $(psql -qtA pgbench -c"select extname||'.so'

C++ 83

C++ Open Source Database Programming 83

Percona

DECEMBER 5, 2023

Inspired by David’s insights, I embarked on a journey to explore logical replication from a different perspective – within the realm of on-premises server databases. Also, it is a helpful method for version upgrades since the target database can run on a different (minor or major) PostgreSQL version. to PostgreSQL v15.4.

Database 80

Database Traffic C++ Servers 80

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. cat /usr/lib/systemd/system/postgresql-14.service. That is where all “ALTER SYSTEM SET/RESET” commands keep the information. Database level setting All options discussed so far have a global scope.

Database 107

Database Servers Open Source Tuning 107

HammerDB

APRIL 19, 2023

Among the different components of modern software solutions, the database is one of the most critical. Instead, focus on understanding what the workloads exercise to help us determine how to best use them to aid our performance assessment. We will not concern ourselves with the raw throughput of workload.

Performance 54

Performance Benchmarking Cache Storage 54

HammerDB

JULY 16, 2021

One of the most important concepts in analysing database performance is that of understanding scalability. When a system ‘scales’ it is able to deliver higher levels of performance proportional to the system resources available to it. In this example, we will compare MySQL 5.7.33 and MySQL 8.0.25 and MySQL 8.0.25

Virtualization 57

Virtualization Performance C++ Database 57

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

SQL Performance

JUNE 10, 2020

The relational model and the standard querying language that is based on it are supposed to deal only with the conceptual aspects of the data and leave the physical implementation details like storage, optimization, access and processing of the data to the database platform (the implementation ). Persistency. Msg 230, Level 14, State 1.

C++ 109

C++ Database Servers Code 109