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

All Things Distributed

OCTOBER 2, 2017

Today marks the 10 year anniversary of Amazon's Dynamo whitepaper , a milestone that made me reflect on how much innovation has occurred in the area of databases over the last decade and a good reminder on why taking a customer obsessed approach to solving hard problems can have lasting impact beyond your original expectations.

Internet 130

Internet Internet AWS Performance 130

SQL Server According to Bob

SEPTEMBER 26, 2016

When we released Always On Availability Groups in SQL Server 2012 as a new and powerful way to achieve high availability, hardware environments included NUMA machines with low-end multi-core processors and SATA and SAN drives for storage (some SSDs). As we moved towards SQL Server 2014, the pace of hardware accelerated.

Availability 40

Availability Servers Hardware Benchmarking 40

All Things Distributed

MAY 8, 2012

By Werner Vogels on 08 May 2012 02:00 PM. You can then off load the management and scaling of your database and application stack to Amazon RDS and AWS Elastic Beanstalk , and focus on adding value to your customers. Amazon RDS for SQL Server. Werner Vogels weblog on building scalable and robust distributed systems. Comments ().

Cloud 116

Cloud Development AWS Servers 116

SQL Performance

JULY 11, 2019

Connecting to SQL Server 2012 or better, or Azure SQL Database. And recommended system configuration: Two or more cores 8GB or more of memory Operating Systems: Windows (8.1 / Server 2012 R2 or better) macOS (10.13 In a new query window, establish a connection to a server, and write or paste a query.

Azure 90

Azure Servers Tuning Operating System 90

SQL Performance

MARCH 22, 2022

This series doesn’t dwell too long on the basics but concentrates on less well-known aspects likely to trip up even the most experienced database professionals. It's almost always better to explicitly parameterize statements, rather than relying on the server to do it. ALTER DATABASE SCOPED CONFIGURATION. Shell Plans.

Cache 61

Cache Servers Database Code 61

SQL Performance

MAY 16, 2019

Without this guarantee, SQL Server might add index rows that are not sorted correctly, which would not be good. For INSERT.SELECT , SQL Server makes its own determination whether to ensure rows are presented to the Clustered Index Insert operator in key order or not. DMLRequestSort Conditions.

Cache 67

Cache Servers Testing Storage 67

Percona

JANUARY 14, 2019

What if we use ClickHouse (which is a columnar analytical database) as our main datastore? Well, typically, an analytical database is not a replacement for a transactional or key/value datastore. Although such databases can be very efficient with counts and averages, some queries will be slow or simply non existent. Processed 4.15

Database 40

Database Analytics Blockchain Healthcare 40

SQL Performance

MAY 1, 2019

The summary rows for heap tables without indexes are the same in both documents (no changes for SQL Server 2016): An explicit TABLOCK hint is not the only way to meet the requirement for table-level locking. The following demo script should be run on a development instance in a new test database set to use the SIMPLE recovery model.

Servers 47

Servers Database Testing Performance 47

SQL Performance

MAY 20, 2022

The most important things to understand about server-side parameterization are it doesn’t happen all at once and a final decision to parameterize isn’t made until the end of the process. Names of tables and columns haven’t been resolved to database objects yet, and no type information is available. The Compilation Process. EXECUTE sys.

Cache 55

Cache Database Servers Testing 55

SQL Performance

APRIL 18, 2022

It’s no surprise even highly experienced SQL Server users tend to get this wrong, given the contradictory information often supplied to us. Let’s look at some examples using the Stack Overflow 2010 database on SQL Server 2019 CU 14, with database compatibility set to 150. Parameterization Not Attempted. Users AS U.

Cache 58

Cache Servers Database Testing 58

SQL Performance

FEBRUARY 22, 2021

I would like to share a couple of recent examples that help illustrate how using deprecated SQL Server features continues to bite us. The system table sys.sysprocesses was replaced way back in SQL Server 2005 by a set of dynamic management views (DMVs), most notably sys.dm_exec_requests , sys.dm_exec_sessions , and sys.dm_exec_connections.

Latency 57

Latency Servers Monitoring Systems 57

Percona

JUNE 6, 2023

This blog was originally published in January 2012 and was updated in June 2023. A full backup is a comprehensive data backup strategy that involves creating a complete, exact copy of all data and files in a database. In order to implement effective full backups of your database, you must follow some best practices.

Storage 67

Storage Strategy Network Efficiency 67

All Things Distributed

SEPTEMBER 25, 2012

By Werner Vogels on 25 September 2012 06:00 PM. Following the huge success of being able to provision a consistent, user-requested I/O rate for DynamoDB and Elastic Block Store (EBS), the AWS Database Services team has now released Provisioned IOPS, a new high performance storage option for the Amazon Relational Database Service (Amazon RDS).

Cloud 118

Cloud AWS Storage Database 118

SQL Server According to Bob

JULY 12, 2016

For SQL Server 2008, 2012 and 2014 the trace flag behavior remains the same. For SQL Server 2016 the trace flags are available but the behavior may be altered by the design changes. Trace flag 2549 is used to change how DBCC sees the volume layout of the database. This is behavior is unchanged in SQL Server 2016.

Servers 40

Servers Design Engineering Database 40

SQL Performance

AUGUST 15, 2019

Connecting to SQL Server 2012 or better, or Azure SQL Database. And recommended system configuration: Two or more cores 8GB or more of memory Operating Systems: Windows (8.1 / Server 2012 R2 or better) macOS (10.13 In a new query window, establish a connection to a server, and write or paste a query.

Azure 50

Azure Servers Tuning Operating System 50

All Things Distributed

APRIL 5, 2012

By Werner Vogels on 06 April 2012 06:00 AM. One of the services that is very successful in driving innovation at our customers in this context is Amazon RDS , the Relational Database Service. Troy: We moved our service from internal servers to AWS. Werner Vogels weblog on building scalable and robust distributed systems.

Innovation 149

Innovation AWS Education Network 149

SQL Performance

SEPTEMBER 2, 2021

UPDATE: September 2nd, 2021 (Originally published July 26th, 2012.). A lot of things change over the course of a few major versions of our favorite database platform. SQL Server 2016 brought us STRING_SPLIT , a native function that eliminates the need for many of the custom solutions we’ve needed before.

C++ 59

C++ Servers Testing Database 59

All Things Distributed

FEBRUARY 18, 2013

When a new app server instance starts, OpsWorks will use built-in recipes to configure the app server software and deploy your apps, and can also apply your specified recipes to make changes to your database and monitoring infrastructure. Operational Control â?? Automate tasks. blog comments powered by Disqus. Contact Info.

AWS 157

AWS Cloud Architecture Infrastructure 157

SQL Server According to Bob

JUNE 3, 2016

SQL Server 2016 changes the internal design to (CheckScanner), applying no lock semantics and a design similar to those used with In-Memory Optimized (Hekaton) objects, allowing DBCC operations to scale far better than previous releases. The following chart shows the same 1TB database testing. SQL Server. SQL Server 2014.

Hardware 40

Hardware Cache Servers Software Engineering 40

SQL Server According to Bob

JUNE 3, 2016

SQL Server 2016 ‘It Just Runs Faster’ A bold statement that any SQL Server professional can stand behind with confidence. Try SQL Server 2016 Today. The SQL Server Development team tasked several individuals with scalability improvements and real world testing patterns. – [link]. Follow-up.

Hardware 40

Hardware Software Engineering Transportation Scalability 40

Alex Russell

MARCH 6, 2021

The cheapest (high volume) Androids perform like 2012/2013 iPhones, respectively. If those specs sound eerily familiar, it's perhaps because they're identical to 2016's $200USD Moto G4 , all the way down to the 2011-vintage 28nm SoC process node used to fab the chip's anemic, 2012-vintage A53 cores. Tap for a larger version.

Performance 124

Performance Network Cache Metrics 124

SQL Performance

APRIL 23, 2019

In SQL Server 2012, grouped (vector) aggregation was able to use parallel batch-mode execution, but only for the partial (per-thread) aggregate. SQL Server 2014 added the ability to perform parallel batch-mode grouped aggregation within a single Hash Match Aggregate operator. Introduction. instructions are available.

Servers 67

Servers Testing Metrics Storage 67

Brendan Gregg

NOVEMBER 29, 2017

But not all workloads: some are network bound (proxies) and storage bound (databases). ## 5. AWS Bare Metal 2017 Also announced at AWS re:Invent: the Amazon EC2 Bare Metal instances, which are just that – bare metal servers. The first was c3. 0% performance overhead. Run whatever you like: Xen, KVM, containers.

Virtualization 111

Virtualization AWS Hardware Storage 111

Smashing Magazine

APRIL 1, 2020

Many Jamstack sites created with static site generators like Gridsome, Hugo or Gatsby make use of the headless CMS to manage content, they cannot access a database, Hence content can be stored in a headless CMS and fetched through an API during build time and deployed as static files. This is data received from the server.

Open Source 103

Open Source Website Mobile Code 103

Brendan Gregg

NOVEMBER 28, 2017

But not all workloads: some are network bound (proxies) and storage bound (databases). ## 5. AWS Bare Metal 2017 Also announced at AWS re:Invent: the Amazon EC2 Bare Metal instances, which are just that – bare metal servers. The first was c3. 0% performance overhead. Run whatever you like: Xen, KVM, containers.

Virtualization 40

Virtualization AWS Hardware Storage 40

The Netflix TechBlog

DECEMBER 17, 2019

Andreas Andreakis , Ioannis Papapanagiotou Overview Change-Data-Capture (CDC) allows capturing committed changes from a database in real-time and propagating those changes to downstream consumers [1][2]. In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Designed with High Availability in mind.

Database 212

Database Traffic Transportation Open Source 212

The Netflix TechBlog

DECEMBER 17, 2019

Andreas Andreakis , Ioannis Papapanagiotou Overview Change-Data-Capture (CDC) allows capturing committed changes from a database in real-time and propagating those changes to downstream consumers [1][2]. In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Designed with High Availability in mind.

Database 197

Database Traffic Transportation Open Source 197

O'Reilly

JULY 25, 2023

To provide some coherence to the music, I decided to use Taylor Swift songs since her discography covers the time span of most papers that I typically read: Her main albums were released in 2006, 2008, 2010, 2012, 2014, 2017, 2019, 2020, and 2022. This choice also inspired me to call my project Swift Papers.

Programming 98

Programming Code Design Benchmarking 98