Percona

JUNE 15, 2023

Sometimes we might need to install/upgrade Percona Server for MySQL /MySQL 8 to a particular version in a test or production environment. Install Percona Server for MySQL 8 specific version packages via repository. Download specific Percona Server for MySQL 8 tarball packages and install them manually. Setting up curl (7.74.0-1.3+deb11u7).

Servers 83

Servers C++ Database Systems 83

Scalegrid

JANUARY 19, 2024

Key Takeaways Rollbacks in MongoDB are triggered by disruptions in the replication process due to primary node crashes, network partitions, or other failures, which can lead to substantial data loss and inconsistencies. With direct, actionable insights, prepare to navigate the complexities of rollbacks with confidence.

Database 130

Database Network Servers Monitoring 130

High Scalability

JANUARY 11, 2022

When the server receives a request for an action (post, like etc.) We will use a graph database such as Neo4j to store the information. Additionally, we can use columnar databases like Cassandra to store information like user feeds, activities, and counters. High Level Design. Architecture. System Components. Component Design.

Design 334

Design Media Storage Logistics 334

Percona

DECEMBER 20, 2023

Modern servers operate with terabytes of RAM, and by default, processors work with virtual memory address translation for each 4KB page. Please check out the Why Linux HugePages are Super Important for Database Servers: A Case with PostgreSQL blog post for more information.

C++ 97

C++ Virtualization Benchmarking Database 97

Percona

MARCH 13, 2023

to MySQL 8, we could choose to do an in-place upgrade or set up another MySQL 8 server(s) from the existing running MySQL 5.7 server with Percona XtraBackup. In my lab, we have two test nodes: PRIMARY: mysql57 (192.168.56.111) with Percona Server 5.7 server instances are ready for an upgrade. On primary server mysql5.7,

Servers 103

Servers C++ Storage Systems 103

Percona

DECEMBER 7, 2023

Ensuring the security and resilience of your data hinges on having a robust backup strategy, and Percona XtraBackup (PXB), our open source backup solution for all versions of MySQL, is designed to make backups a seamless procedure without disrupting the performance of your server in a production environment. Percona XtraBackup 8.1

C++ 92

C++ Open Source Servers Database 92

Scalegrid

JULY 13, 2020

Oracle Database is a commercial, proprietary multi-model database management system produced by Oracle Corporation, and the largest relational database management system (RDBMS) in the world. While Oracle remains the #1 database on the market, its popularity has steadily declined by over 18% since 2013. Not available.

Open Source 244

Open Source Tuning C++ Database 244

Percona

MAY 1, 2023

It has default settings for all of the database parameters. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. The performance of a PostgreSQL database has a significant impact on the overall effectiveness of an application.

Tuning 52

Tuning Efficiency Database Performance 52

Scalegrid

FEBRUARY 15, 2024

In a world where data security is essential, enabling MongoDB SSL is critical in fortifying your database. Each section is crafted to elevate your database’s security protocol, from acquiring the necessary SSL certificates to configuring server and client connections.

Servers 130

Servers Best Practices Government Network 130

Percona

MARCH 8, 2023

Over the years of being a DBA, I had to deal with all kinds of problems in the database. Still, the users keep falling into this trap, maybe because of a poorly configured database, a change in the application components, or just because of a sudden increase of connections in the application. A lot has been written about this error.

C++ 93

C++ Database Servers Open Source 93

Scalegrid

OCTOBER 7, 2019

As this open source database continues to pull new users from expensive commercial database management systems like Oracle, DB2 and SQL Server, organizations are adopting new approaches and evolving their own to maintain the exceptional performance of their SQL deployments. Java #Python #C Click To Tweet.

Strategy 182

Strategy Cloud Java Open Source 182

Percona

MAY 8, 2023

In simpler terms, logical replication in PostgreSQL is a way to copy data from one database to another in a more flexible and customizable manner compared to physical replication. Instead of copying the entire database, logical replication focuses on replicating changes made to individual rows or transactions. 12 Replica1 10.0.0.80

C++ 99

C++ Servers Database Open Source 99

Scalegrid

JULY 29, 2020

It uses only one process which makes it very lightweight. If we require N parallel connections, this forks N child processes. By default, there are 32 child processes that are forked. PgBouncer defines one pool per user+database combination. Pgpool-II defines one process per child process. Pooling modes.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Percona

SEPTEMBER 19, 2023

This type of backup is suitable for large, important databases that need to be recovered quickly when problems occur. Physical backups are the backups that consist of raw copies of the directories and files that store database contents. Copyright (c) 2016, 2023, Oracle and/or its affiliates.

C++ 104

C++ Servers Storage Speed 104

Highly Scalable

SEPTEMBER 18, 2012

Although it can hardly be said that NoSQL movement brought fundamentally new techniques into distributed data processing, it triggered an avalanche of practical studies and real-life trials of different combinations of protocols and algorithms. Isolated parts of the database can serve read/write requests in case of network partition.

Database 213

Database Latency C++ Scalability 213

Percona

MAY 2, 2023

That’s why it’s essential to implement the best practices and strategies for MongoDB database backups. Why are MongoDB database backups important? Regular database backups are essential to protect against data loss caused by system failures, human errors, natural disasters, or cyber-attacks.

Best Practices 52

Best Practices Database Storage Servers 52

HammerDB

DECEMBER 5, 2020

compared to previous releases is that the workload names have changed from TPC-C and TPC-H to TPROC-C and TPROC-H respectively and therefore a key question is how are the v4.0 The simple answer is nothing, the workloads are exactly the same workloads derived from the TPC-C and TPC-H specifications and HammerDB v4.0

C++ 40

C++ Benchmarking Virtualization Open Source 40

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. and a v15.4.

Database 76

Database Traffic C++ Servers 76

Percona

JULY 19, 2023

Well, “easy” if you know just a tiny bit of C++. How would you integrate some new fancy processing library into MySQL without having to recreate the complexities in pure SQL? Our function will implement a ULID generator using a C++ library from ChrisBove/ulid. mkdir ~/percona-server-8.0.32-24/plugin/ulid/

C++ 80

C++ Servers Benchmarking Best Practices 80

Percona

DECEMBER 29, 2023

Not everything can be addressed on the database side. These connections can accumulate, eventually exhausting server resources and causing the system to become unresponsive. Human factor: In an ideal case, there must be stringent restrictions and enforcement on what load and number of connections can be onboarded to the Database.

Servers 80

Servers Database C++ Airlines 80

Percona

OCTOBER 3, 2023

While THP can be beneficial for many applications, enabling it on a database server could have unintended consequences. In this post, we will explore THP, its impact on database servers, and how to disable it for optimal performance and stability. What are Transparent Huge Pages? In this case, THP is enabled.

Database 87

Database Servers Open Source C++ 87

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++ 82

C++ Open Source Database Programming 82

Percona

JUNE 5, 2023

Sooner or later, one must address this issue; otherwise, one can suffer the consequences of handicapping your entire database infrastructure. The problem is you either don’t or can’t refactor your application servers; something, maybe, about not having enough time in the day. Note that the md5 hashed password is pgbouncer.

Database 121

Database Open Source Servers C++ 121

Dynatrace

JULY 21, 2020

COBOL applications must be processed on expensive general processors, while Java applications are eligible to run on IBM Z specialty processors such as zIIPs. Processing capacity associated with zIIPs isn’t subject to license costs and maintenance fees. This insight lays the required foundation for our modernization process.”

Java 174

Java Government Database Programming 174

Percona

AUGUST 18, 2023

Why do you need multiple instances on the same server? Why not just create another database on the same instance? You can have a host with two or three instances configured as a delayed replica of the source server with SQL Delay of, let’s say, 24hr, 12hr, and 6/3hrs. ln -s /usr/local/Percona-Server-8.0.19-10-Linux.x86_64.ssl101/

Programming 84

Programming Servers Database Hardware 84

O'Reilly

NOVEMBER 21, 2019

This is precisely the kind of problem that robotic process automation (RPA) aims to address. She’s the vestigial human link in a process—insurance claims processing—that has a mostly automated workflow. Prior to RPA, enterprises used several different techniques to automate workflows and back-office processes.

Processing 83

Processing Programming Virtualization Technology 83

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. The most common parameter used by the PostgreSQL server (postmaster) will be PGDATA, which sets the parameter data_directory. But changing this is possible only at the server startup. 20150623 (Red Hat 4.8.5-44),

Database 102

Database Servers Open Source Tuning 102

SQL Performance

JUNE 10, 2020

This month and the next I’m going to cover the physical processing aspects of derived tables. In my coverage of the physical treatment of named table expressions in the series I focus on the treatment in Microsoft SQL Server and Azure SQL Database. The physical treatment in other database platforms can be quite different.

C++ 109

C++ Database Servers Code 109

Percona

OCTOBER 2, 2023

Percona Toolkit is a collection of advanced open source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL, MariaDB, MongoDB, and PostgreSQL server and system tasks that are too difficult or complex to perform manually. And did I mention they are open source?! virtual = 2.2G

Cache 99

Cache Database Virtualization Servers 99

Percona

JUNE 4, 2023

In this blog, we’ll provide a comparison between MariaDB vs. MySQL (including Percona Server for MySQL ). Introduction: MariaDB vs. MySQL The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. What is MariaDB?

Open Source 52

Open Source Servers Storage Scalability 52

HammerDB

MARCH 25, 2023

Docker build, example CLI scripts were added to build and run the TPROC-C workload in the Tcl language. these were enhanced to also add Python based scripts, and to include scripts for both TPROC-C and TPROC-H and a driver script for Linux environments. With the HammerDB v4.5 In HammerDB v4.6 With HammerDB v4.7

C++ 83

C++ Virtualization Benchmarking Database 83

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. It enables the user to measure database performance and make comparative judgements about database hardware and software. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The HammerDB name.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Percona

AUGUST 31, 2018

It has default settings for all of the database parameters. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. It is important to pay attention to performance when writing database queries. PostgreSQL’s Tuneable Parameters. shared_buffer.

Tuning 55

Tuning Database Performance Benchmarking 55

SQL Performance

MAY 11, 2022

These can result in different parts of the plan needing to process the input data in different orders. In my examples, I’ll use the sample database PerformanceV5. You can download the source code to create and populate this database here. It processes the functions in the plan in the order they appear in the query.

C++ 133

C++ Database Servers Code 133

SQL Performance

DECEMBER 9, 2020

I mainly experimented with different table value constructor cardinalities, with serial versus parallel processing, and with row mode versus batch mode processing. You can create supporting tables in the user database if needed. I’ll present the performance tests that I’ve done with my solution. So, the challenge is on!

C++ 114

C++ Servers Testing Processing 114

SQL Performance

JUNE 10, 2020

This month and the next I’m going to cover the physical processing aspects of derived tables. In my coverage of the physical treatment of named table expressions in the series I focus on the treatment in Microsoft SQL Server and Azure SQL Database. The physical treatment in other database platforms can be quite different.

C++ 93

C++ Database Servers Code 93

Dynatrace

APRIL 5, 2021

It automatically manages all the computing resources those processes require. Azure is a large and growing cloud computing ecosystem that empowers its users to access databases, launch virtual servers, create websites or mobile applications, run a Kubernetes cluster, and train machine learning models, to name a few examples.

Azure 136

Azure Serverless IoT Lambda 136