Managing High Availability in PostgreSQL – Part III: Patroni

Scalegrid

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.

Meaningful availability

The Morning Paper

Meaningful availability , Hauer et al., > A good availability metric should be meaningful, proportional, and actionable. By "proportional" we mean that a change in the metric should be proportional to the change in user-perceived availability.

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Managing High Availability in PostgreSQL – Part II

Scalegrid

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.

Davis AI now detects infrastructure availability issues as root cause

Dynatrace

Having been named as a Leader in the 2020 Gartner APM Magic Quadrant for the 10 th consecutive time proves that Dynatrace is the best-of-breed application performance monitoring tool available. This capability eliminates the need for default trigger events for process availability issues.

MySQL High Availability Framework Explained – Part III: Failover Scenarios

High Scalability

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.

ScaleGrid DigitalOcean Support for MySQL, PostgreSQL and Redis™ Now Available

Scalegrid

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.

Dynatrace Managed turnkey Premium High Availability for globally distributed data centers (Early Adopter)

Dynatrace

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. Our Premium High Availability comes with the following features: Active-active deployment model for optimum hardware utilization.

Highly Available Redis Clusters with Automated Sharding Launches at ScaleGrid

Scalegrid

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.,

Dynatrace Managed now available on all major cloud platforms

Dynatrace

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 219

Synchronize logins between Availability replicas in SQL Server Always On Availability Group

SQL Shack

In this 40th article on SQL Server Always On Availability Group series, we will discuss logins synchronization between replicas. Introduction SQL Server Always On Availability Groups provides high availability and disaster recovery solution for SQL databases.

Configuring SQL Server Always On Availability Groups on AWS EC2

SQL Shack

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. AlwaysOn Availability Groups Clustering High Availability

ScaleGrid Fully Managed Hosting for Redis™ Now Available on Azure

Scalegrid

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

Dynamic management views for monitoring availability replicas and databases for SQL Server Always On Availability Groups

SQL Shack

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

Session timeouts in SQL Server Always On Availability Groups

SQL Shack

In this 41st article for SQL Server Always On Availability Groups, we will explore the session timeout configurations for AG replicas. Prerequisites You should follow articles in the series, SQL Server Always On Availability Groups and prepare the following environment.

An overview of distributed SQL Server Always On Availability Groups

SQL Shack

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

Monitor SQL Server Always On Availability groups using extended events

SQL Shack

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.

Reporting at scale leveraging cross-environment dashboards (General Availability)

Dynatrace

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.

Deploy a distributed SQL Server Always On Availability Group

SQL Shack

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.

MySQL High Availability Framework Explained – Part II

High Scalability

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.

Read Scale Availability Group in a clusterless availability group

SQL Shack

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.

Analyze all AWS data in minutes with Amazon CloudWatch Metric Streams available in Dynatrace

Dynatrace

Thanks to centralized configuration, near real-time availability of all services, and potential cost optimization, metric streaming is now the future of performance data distribution. Dynatrace news.

SQL Server Always On Availability Groups Interview Questions & Answers

SQL Shack

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

Transparent Data Encryption for SQL Server Always On Availability Groups

SQL Shack

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

Article: Using the Plan-Do-Check-Act Framework to Produce Performant and Highly Available Systems

InfoQ Articles

The PDCA (plan-do-check-act) framework can be used to outline the performance, availability, and monitoring to enable teams to ensure performant and highly available applications.

Start monitoring your web application’s availability with one click

Dynatrace

Availability monitoring —Is my application working 24 x 7? With the latest release of Dynatrace, we’ve made it super easy to start monitoring your application’s availability using synthetic monitors. Just select Monitor availability and you‘re done! Dynatrace news.

A comprehensive guide to SQL Server Always On Availability Groups on Windows Server 2016

SQL Shack

In this article, we will configure a SQL Server Always On Availability Group on the Windows Server 2016. Introduction SQL Server Always On Availability Groups offers high availability and disaster recovery solution for mission-critical databases.

Make the most of secondary replicas in SQL Server Always On Availability Groups

SQL Shack

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

Lease Timeouts and Health Checks in SQL Server Always On Availability Groups

SQL Shack

In the 42nd article for SQL Server Always On Availability Groups, we are going to explore lease timeouts and health checks. Introduction SQL Server Always On Availability Groups provides resilience for high availability and disaster recovery solution in a multi-node architecture.

Explore dynamic management views for monitoring SQL Server Always On Availability Groups

SQL Shack

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

Configure Domain Controller and Active Directory for SQL Server Always On Availability Groups

SQL Shack

In this series for SQL Server Always On availability groups, we are covering end to end configurations for SQL Server 2019 on Windows Server 2016. AlwaysOn Availability Groups Clustering High Availability

Database-level health detection in SQL Server Always On Availability Groups

SQL Shack

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.

Configure failover clusters, storage controllers and quorum configurations for SQL Server Always On Availability Groups

SQL Shack

This article explores the configuration of Windows failover clusters, storage controllers and quorum configurations for SQL Server Always On Availability Groups. AlwaysOn Availability Groups Clustering High Availability

Automatic Seeding in Always On Availability Groups

SQL Shack

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.

Add a new node into existing SQL Server Always On Availability Groups

SQL Shack

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.

Explore failover types in SQL Server Always On Availability Groups

SQL Shack

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

Gain better visibility into your infrastructure with Windows service availability monitoring

Dynatrace

For example: To provide support, you need a remote desktop service to be available. To simplify and automate such efforts, we’re proud to announce general availability of Windows services availability monitoring with the release of Dynatrace OneAgent version 1.197.

Column-level SQL Server encryption with SQL Server Always On Availability Groups

SQL Shack

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

Configure SQL Server Always On Availability Groups using Windows PowerShell scripts

SQL Shack

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

Suspend and Resume Data Movement in SQL Server Always On Availability Groups

SQL Shack

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

Isolation levels behavior in SQL Server Always On Availability Groups

SQL Shack

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 […].

Apply SQL Server patches or cumulative updates in SQL Server Always On Availability Groups

SQL Shack

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

Restore an existing availability group database participating in SQL Server Always On Availability Groups

SQL Shack

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

Configure SQL Server replication for a database in SQL Server Always On Availability Groups

SQL Shack

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.