Scalegrid

AUGUST 22, 2019

In the final post of this series, we will review the last solution, Patroni by Zalando, and compare all three at the end so you can determine which high availability framework is best for your PostgreSQL hosting deployment. Managing High Availability in PostgreSQL – Part I: PostgreSQL Automatic Failover. Managing High Availability in PostgreSQL – Part II: Replication Manager. Managing High Availability in #PostgreSQL – Part III: Patroni vs. PAF vs. repmgr Click To Tweet.

Availability 211

Availability Open Source Servers Network 211

The Morning Paper

FEBRUARY 25, 2020

Meaningful availability , Hauer et al., This very clearly written paper describes the Google G Suite team’s search for a meaningful availability metric: one that accurately reflected what their end users experienced, and that could be used by engineers to pinpoint issues and guide improvements. > > A good availability metric should be meaningful, proportional, and actionable. ‘five nines availability’). Making availability actionable.

Availability 87

Availability Metrics Google Systems 87

Scalegrid

MARCH 12, 2019

Are you deploying PostgreSQL in the cloud and want to understand your options for achieving high availability? In our previous blog post, Managing High Availability in PostgreSQL – Part I , we discussed the capabilities and functioning of PostgreSQL Automatic Failover (PAF) by ClusterLabs. Managing High Availability in #PostgreSQL – Part II: Open Source repmgr Tool Click To Tweet. High Availability Test Scenarios.

Availability 114

Availability Servers Database Open Source 114

SQL Shack

NOVEMBER 19, 2020

In this 37th article for SQL Server Always On Availability Groups, we will explore useful dynamic management views for monitoring availability replicas and databases. Always On Availability Groups Monitoring

Availability 65

Availability Monitoring Database Servers 65

High Scalability

APRIL 16, 2019

In this three-part blog series, we introduced a High Availability (HA) Framework for MySQL hosting in Part I, and discussed the details of MySQL semisynchronous replication in Part II. Now in Part III, we review how the framework handles some of the important MySQL failure scenarios and recovers to ensure high availability. The Corosync and Pacemaker framework detects that the master MySQL is no longer available.

Availability 172

Availability Open Source Network Database 172

SQL Shack

OCTOBER 20, 2020

In this 33rd article of SQL Server Always On Availability Group series, we will use extended events to monitor the availability group. Introduction Database professionals’ primary role is to do proactive monitoring for ensuring system availability.

Availability 78

Availability Monitoring Database Servers 78

SQL Shack

AUGUST 21, 2020

This is the 12th article in the series of SQL Server Always On Availability Groups. Introduction SQL Server 2016 provides a new feature Distributed Availability Group for disaster recovery purposes. AlwaysOn Availability Groups Installation, setup and configuration

Availability 80

Availability Servers 80

SQL Shack

AUGUST 25, 2020

In the previous article, An overview of distributed SQL Server Always On Availability Groups, we explored the concept of the distributed availability groups in SQL Server always on availability group. It is available from Windows Server 2016 and SQL Server 2017.

Availability 73

Availability Servers 73

Scalegrid

JANUARY 8, 2019

In Part I , we introduced a High Availability (HA) framework for MySQL hosting and discussed various components and their functionality. Semisynchronous replication, which is natively available in MySQL, helps the HA framework to ensure data consistency and redundancy for committed transactions. Let’s discuss some of the key MySQL settings used to ensure optimal behavior for high availability and data consistency in our framework.

Availability 109

Availability Tuning Network Speed 109

Dynatrace

JULY 31, 2020

Dynatrace Managed now available on the Google Cloud Platform. The post Dynatrace Managed now available on all major cloud platforms appeared first on Dynatrace blog. Dynatrace news.

Cloud 216

Cloud Availability Azure Google 216

SQL Shack

NOVEMBER 16, 2020

Introduction SQL Server Always On Availability Groups gives you the ability to safeguard the SQL databases and implements a solution for high-availability and disaster recovery. Always On Availability Groups Monitoring

Availability 81

Availability Monitoring Database Servers 81

SQL Shack

OCTOBER 13, 2020

In this 31st article of the SQL Server Always On Availability Group series, we will explore how you can use the secondary replica SQL database for your workloads. Always On Availability Groups Transaction log

Availability 84

Availability Database Servers 84

SQL Shack

AUGUST 28, 2020

In this 15th article of SQL Server Always On Availability Groups series, we will cover Transparent Data Encryption (TDE) for AG databases. Always On Availability Groups Transparent Data Encryption (TDE

Availability 73

Availability Virtualization Database Servers 73

SQL Shack

JULY 6, 2020

In this article, we will review how to set up multi-subnet Always On Availability groups using AWS EC2 instances and AWS FSx as file share witness. The following are the steps involved in creating a multi-subnet Always On Availability groups in AWS EC2 instances: Prepare EC2 instances Create AWS FSx for file share witness Create […]. AlwaysOn Availability Groups Clustering High Availability

Availability 62

Availability AWS Servers 62

SQL Shack

SEPTEMBER 29, 2020

In this 27th article of the SQL Server Always On Availability Group series, we will discuss various failover modes for AG databases. Always On Availability Groups Installation, setup and configuration

Availability 62

Availability Database Servers 62

SQL Shack

DECEMBER 10, 2020

In this 38th article for SQL Server Always On Availability Groups, we will explore Windows PowerShell scripts to configure it. Always On Availability Groups PowerShell

Availability 71

Availability Database Servers Development 71

Scalegrid

JANUARY 24, 2019

Redis Cluster is the native sharding implementation available within Redis, an open-source in-memory data structure project, that allows you to automatically shard across multiple Redis nodes without having to rely on external tools and utilities. This is available in addition to their Redis replica set solutions that make it easy to spread out your reads across multiple nodes. Some of the advanced benefits of Redis Clusters include: High Availability. PALO ALTO, Calif.,

Availability 101

Availability Open Source Scalability AWS 101

Scalegrid

OCTOBER 2, 2019

It’s crucial for organizations to properly configure their Redis™ deployments for high availability and disaster recovery, as a couple minutes of downtime can be detrimental to a company’s security and reputation.”. ScaleGrid is the only cloud hosting service for Redis™ that allows you to customize your master-slave and cross-datacenter configurations for 100% uptime and availability across 30 different Azure regions. PALO ALTO, Calif.,

Azure 100

Azure Availability Open Source Virtualization 100

SQL Shack

SEPTEMBER 8, 2020

In this 20th article for the SQL Server Always On Availability Group series, we will cover the steps to restore an existing availability group database. Always On Availability Groups Backup and restore

Availability 52

Availability Database Development Testing 52

SQL Shack

MAY 27, 2019

In this article, we will explore configuring Read Scale Availability Group that does not require a failover clustering configuration. Introduction SQL Server Always On is a high availability and disaster recovery solution available starting from SQL Server 2012. AlwaysOn Availability Groups High AvailabilityIt helps to scale read-only connections to the secondary replica in a cluster less configuration.

Availability 50

Availability Servers 50

SQL Shack

OCTOBER 12, 2020

It is the 30th article in the SQL Server Always On Availability Groups series and explores column-level SQL Server encryption with AG groups. Always On Availability Groups Security SQL Server 2019

Availability 81

Availability Servers Database 81

Scalegrid

JUNE 9, 2020

PALO ALTO, Calif., June 9, 2020 – ScaleGrid, a leading Database-as-a-Service (DBaaS) provider, has just announced support for their MySQL , PostgreSQL and Redis™ solutions on DigitalOcean. This launch is in addition to their current DigitalOcean offering for MongoDB® database , the only DBaaS to support this database on DigitalOcean. MySQL and PostgreSQL are the top two open source relational databases in the world, and Redis is the top key-value database.

Availability 132

Availability Open Source Benchmarking Azure 132

SQL Shack

DECEMBER 14, 2020

In this 39th article for SQL Server Always On Availability Group series, we will learn to configure SSISDB in the highly available AG groups. Always On Availability Groups Integration Services (SSIS

Availability 59

Availability Database Testing Servers 59

SQL Shack

OCTOBER 14, 2020

In this 32nd article on SQL Server Always On Availability Group series, we will discuss the process to apply a service pack or Cumulative packs for AG replica instances. Always On Availability Groups

Availability 74

Availability Servers Processing 74

SQL Shack

JULY 30, 2020

This is the 8th article in the series for SQL Server Always On Availability Groups. Introduction SQL Server Always On Availability Groups create a group of databases that fails over together in case the primary replica is unavailable.

Availability 79

Availability Database Servers 79

SQL Shack

JULY 23, 2020

This is the 5th article in the series of a comprehensive guide to SQL Server Always On Availability Groups. Introduction In the previous articles (see TOC at the bottom), we configured a two-node SQL Server Always On Availability Group.

Availability 82

Availability Virtualization Servers Performance 82

SQL Shack

NOVEMBER 10, 2020

In this 35th article in SQL Server Always On Availability Groups, we will implement a custom policy for monitoring AG groups. Always On Availability Groups

Availability 66

Availability Monitoring Servers 66

Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. We’re therefore proud to announce Premium High Availability for Dynatrace Managed to address exactly this need in a completely turnkey manner without any external load balancing or replication technologies. Turnkey high availability across globally distributed data centers. Not available for offline clusters.

Availability 139

Availability Hardware Network Latency 139

SQL Shack

SEPTEMBER 23, 2020

In this 26th article for SQL Server Always On Availability Groups series, we will discuss the process to suspend and resume data movements between AG replicas. Always On Availability Groups

Availability 73

Availability Network Processing Servers 73

SQL Shack

FEBRUARY 28, 2020

In this article, we will discuss a number of interview questions that you could be asked about the SQL Server Always On Availability Groups feature when attending an interview for the SQL Server database administrator role. AlwaysOn Availability Groups SQL interview questions

Availability 72

Availability Database Servers 72

Dynatrace

JULY 31, 2020

We’re happy to announce the General Availability of cross-environment dashboarding capabilities (having released this functionality in an Early Adopter release with Dynatrace version 1.172 back in June 2019). Keep the token secret available for the second and final configuration step.

Availability 156

Availability Monitoring Best Practices AWS 156

SQL Shack

AUGUST 31, 2020

This is the 16th article for SQL Server Always On Availability Groups series and explores SQL replication integration with AGs. Introduction Recently, I received a requirement to configure the SQL Replication for the availability group database.

Availability 72

Availability Database Servers 72

SQL Shack

JUNE 18, 2019

Introduction In SQL Server Always On Availability Groups, we can add a database into an existing availability group using different methods. Full Database and Log backup: It starts data synchronization by taking full and log backup for the availability group database. AlwaysOn Availability Groups High AvailabilityWe get the following option in the Initial Data Synchronization wizard in SSMS.

Availability 53

Availability Database Servers 53

High Scalability

JANUARY 8, 2019

In Part I, we introduced a High Availability (HA) framework for MySQL hosting and discussed various components and their functionality. Now in Part II, we will discuss the details of MySQL semisynchronous replication and the related configuration settings that help us ensure redundancy and consistency of the data in our HA setup.

Availability 170

Availability Storage Engineering 170

SQL Shack

NOVEMBER 9, 2020

In this 34th article on SQL Server Always On Availability Groups, we will explore policy-based management features for the AG’s. It is available from SQL Server 2008 onwards. Always On Availability Groups

Best Practices 60

Best Practices Availability Database Servers 60

SQL Shack

SEPTEMBER 22, 2020

This is the 25th article in SQL Server Always On Availability Groups series. In this article, we will explore the high availability configuration for reporting services databases. Always On Availability Groups Reporting Services (SSRS

Availability 67

Availability Mobile Database Servers 67

SQL Shack

SEPTEMBER 11, 2020

In this 21st article on SQL Server Always On Availability Group series, we will explore the AG dashboard and its various options for monitoring purposes. As you configure SQL Server Always On Availability Group for the […].

Availability 69

Availability Database Monitoring Servers 69

SQL Shack

AUGUST 26, 2020

In this 14th article of SQL Server Always On Availability Group series, we monitor and failover a distributed AG. Introduction We can implement a distributed availability group between multiple independent failover cluster nodes. AlwaysOn Availability Groups

Availability 68

Availability Monitoring Servers 68

SQL Shack

SEPTEMBER 29, 2020

In this 28th article for SQL Server Always On Availability Group series, we explore the high-availability for the SQL Server PolyBase(SSB) external tables using AG groups. Always On Availability Groups PolyBase

Virtualization 63

Virtualization Availability Database Servers 63

SQL Shack

AUGUST 5, 2020

This is the 9th article in the series of SQL Server Always On Availability Groups. Introduction SQL Server Always On is a disaster and high availability feature. AlwaysOn Availability GroupsIn the previous articles, we explored the following features.

Availability 52

Availability Database Servers 52

SQL Shack

SEPTEMBER 16, 2020

In the previous article, Transparent Data Encryption for SQL Server Always On Availability Groups, we discussed enabling TDE for the existing database in AG. Always On Availability Groups Backup and restore Transparent Data Encryption (TDE

Availability 68

Availability Database Servers 68

SQL Shack

JUNE 18, 2019

In my previous article, Data synchronization in SQL Server Always On Availability Groups, we explored the internal data synchronization for both Asynchronous and Synchronous data commit mode. AlwaysOn Availability Groups High AvailabilityIn the following image, on the secondary replica, we can see two important processes. Log Receive: It receives the log records sent by the primary replica and writes […].

Availability 65

Availability Servers Processing 65

SQL Shack

AUGUST 13, 2020

This article continues from the series on SQL Server Always On Availability Group. AlwaysOn Availability Groups Installation, setup and configurationThis is the 11th article in this series.

Availability 69

Availability Servers 69