How to Setup a WordPress MySQL Database in the Cloud


MySQL is a free open source relational database management system that is leveraged across a majority of WordPress sites, and allows you to query your data such as posts, pages, images, user profiles, and more. As any WordPress developer knows, each installation requires a database in the backend, and MySQL is the database of choice for storing and retrieving your WordPress data. Unlimited Databases. How to Setup Your MySQL Database & Admin User for WordPress.

MySQL High Availability Framework Explained – Part III: Failover Scenarios

High Scalability

Scenario 3 – Network Partition – Network Connectivity Breaks Down Between Master and Slave Nodes.

PyMongo Tutorial: Testing MongoDB Failover in Your Python App


It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. It is a fairly mature driver that supports most of the common operations with the database, and you can check out this tutorial for an introduction to the PyMongo driver. It is also recommended that SSL connections be enabled to encrypt the client-database traffic.

The Best Way to Host MySQL on Azure Cloud


Are you looking to get started with the world’s most popular open-source database, and wondering how you should setup your MySQL hosting ? While Microsoft Azure does offer a managed solution, Azure Database, the solution has some major limitations you should know about before migrating your MySQL deployments. The first thing to consider when weighing between self-management and a MySQL Database-as-a-Service (DBaaS) solution is what internal resources you have available.

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Distributed Algorithms in NoSQL Databases

Highly Scalable

These developments gradually highlight a system of relevant database building blocks with proven practical efficiency. In this article I’m trying to provide more or less systematic description of techniques related to distributed operations in NoSQL databases.

Managing High Availability in PostgreSQL – Part III: Patroni


On the first node, Patroni initializes the database, obtains the leader lock from DCS, and ensures the node is being run as the master. All of these tests were performed while the application was running and inserting data to the PostgreSQL database. Network Isolation Tests. Network-isolate the master server from other servers. Network-isolate the standby server from other servers. Network Isolation Tests.

Top Redis Use Cases by Core Data Structure Types


Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s important to note that Redis is a NoSQL database system. This implies that unlike SQL (Structured Query Language) driven database systems like MySQL, PostgreSQL, and Oracle, Redis does not store data in well-defined database schemas which constitute tables, rows, and columns. 8 ranked database on DB-Engines with a score of 144.08.

What’s the Best PostgreSQL High Availability Framework? PAF vs. repmgr vs. Patroni Infographic


In these blogs, we dove deep into how the frameworks work, their setup requirements, pros and cons, and how they performed in standby server tests, primary server tests and network isolation tests (split brain scenario) to help you determine the best framework to improve the uptime for your PostgreSQL-powered applications. Wondering which high availability framework to use for your PostgreSQL deployments ?

View-centric performance optimization for database-backed web applications

The Morning Paper

View-centric performance optimization for database-backed web applications Yang et al., you are doing the count in the database, right?). ICSE 2019.

Increasing access to blockchain and ledger databases

All Things Distributed

This is a technology used to build applications where multiple parties can interact through a peer-to-peer-network and record immutable transactions with no central trusted authority. Last year, I spent some time in Jakarta visiting HARA , an AWS customer.

MySQL High Availability Framework Explained – Part II: Semisynchronous Replication


Since we are operating with 2 slaves and the rpl_semi_sync_master_wait_for_slave_count is set to 1, we’ve noticed that at least one of the slaves does acknowledge within a reasonable amount of time and the master does not switch over to asynchronous mode during temporary network disruptions. The theorem states that, in the presence of a network partition, we will have to choose either availability or consistency, but not both.

Redis Cloud Gets Easier with Fully Managed Hosting on Azure


October 2, 2019 – ScaleGrid, a rapidly growing leader in the Database-as-a-Service (DBaaS) space, has just launched their new fully managed Redis on Azure service. This Redis management solution allows startups up to enterprise-level organizations automate their Redis operations on Microsoft Azure dedicated cloud servers, alongside their other open source database deployments, including MongoDB , MySQL and PostgreSQL. PALO ALTO, Calif.,

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How to Improve MySQL AWS Performance 2X Over Amazon RDS at The Same Cost


AWS is the #1 cloud provider for open-source database hosting, and the go-to cloud for MySQL deployments. While many AWS users default to their managed database solution, Amazon RDS, there are alternatives available that can improve your MySQL performance on AWS through advanced customization options and unlimited EC2 instance type support. No more network-based EBS, just blazing-fast local SSD.

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Managing High Availability in PostgreSQL – Part II


Replication Manager makes use of PostgreSQL extensions feature and creates its own schema on the cluster database to store the cluster-related information. In case of any network split, repmgr will ensure the promotion of the node which is in the same location as the primary. It also handles network isolation in the event of an even number of servers in a cluster. repmgr will require a dedicated database and a user with superuser privileges. Network Isolation Tests.

Weekend Reading: Amazon Aurora: Design Considerations for High Throughput Cloud-Native Relational Databases.

All Things Distributed

In many, high-throughput, OLTP style applications the database plays a crucial role to achieve scale, reliability, high-performance and cost efficiency. For a long time, these requirements were almost exclusively served by commercial, proprietary databases.

5 Steps to Accelerate your Cloud Migration with Dynatrace


Database & functional migration. While most of our cloud & platform partners have their own dependency analysis tooling, most of them focus on basic dependency detection based on network connection analysis between hosts. Step 4: Smart Database Migration. Dynatrace news.

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A one size fits all database doesn't fit anyone

All Things Distributed

A common question that I get is why do we offer so many database products? To do this, they need to be able to use multiple databases and data models within the same application. Seldom can one database fit the needs of multiple distinct use cases. The days of the one-size-fits-all monolithic database are behind us, and developers are now building highly distributed applications using a multitude of purpose-built databases. Purpose-built databases.

How to Optimize Digital Experience and Operations with Dynatrace


Infrastructure Optimization: 100% improvement in Database Connectivity. Think of a user login which requires your back-end systems to validate user credentials and query required user profile information from the backend databases. Dynatrace news.

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Should You Use ClickHouse as a Main Operational Database?


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. Public API as -a-service has become a good business model: examples include social networks like Facebook/Twitter, messaging as a service like Twilio, and even credit card authorization platforms like Marqeta. Analytical databases are optimized for a low number of slow queries.

Back-to-Basics Weekend Reading - U-Net: A User-Level Network Interface

All Things Distributed

In the back to basics readings this week I am re-reading a paper from 1995 about the work that I did together with Thorsten on solving the problem of end-to-end low-latency communication on high-speed networks.

MySQL High Availability Framework Explained – Part III: Failure Scenarios


Scenario 3 – Network Partition – Network Connectivity Breaks Down Between Master and Slave Nodes. This is a classical problem in any distributed system where each node thinks the other nodes are down, while in reality, only the network communication between the nodes is broken. We assume that due to network issues, the cluster has partitioned into two groups – master in one group and 2 slaves in the other group, and we will denote this as [(M), (S1,S2)].

Intro to Redis Cluster Sharding – Advantages, Limitations, Deploying & Client Connections


Only Supports One Database. Unlike standalone databases, Redis Clusters support only one database (database 0), and the SELECT command isn’t allowed. Since most people don’t use multiple databases, this too is not a major limitation.

Connecting MongoDB to Ruby with Self-Signed Certificates for SSL


Our yml file: development: # Configure available database clients. Alternatively, you can define the following: # # Define the name of the default database that Mongoid can connect to. # (required). database: test # Provide the hosts the default client can connect to. The user's database roles. is :plain) auth_mech: :scram # The database or source to authenticate the user against.

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Titan Graph Database Integration with DynamoDB: World-class Performance, Availability, and Scale for New Workloads

All Things Distributed

It opens up the possibility to enjoy the value that graph databases bring to relationship-centric use cases, without worrying about managing the underlying storage. Traditionally, these connections have been stored in relational databases, with each object type requiring its own table.

Redis Cloud Gets Easier with Fully Managed Hosting on Azure

High Scalability

ScaleGrid, a rapidly growing leader in the Database-as-a-Service (DBaaS) space, has just launched their new fully managed Redis on Azure service.

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MySQL Tutorial – Understanding The Seconds Behind Master Value


Lastly, it’s important to note that in our discussions so far, we have not assumed any network bottlenecks. In case of slow networks, the slave IO Thread itself will be lagging behind the master, and if the SQL Thread is fast enough, the SBM will be oscillating between ‘0’ and a positive number.

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Checksums in Storage Systems and Why the Enterprise Should Care


It’s really scary knowing that such corruptions are happening in the memory of our computers and servers – that is before they even reach the network and storage portions of the stack. That data must then be safely transported over a network to the storage system where it is written to disk. performance storage database checksum data corruption data safetyRandom bit flips are far more common than most people, even IT professionals, think.

Which is the Best MongoDB GUI? — 2019 Update


In this article, we are going to compare 6 of the top MongoDB Graphical User Interfaces that help developers increase their productivity and manage their database. SQL Import/Export that supports major databases: Oracle, SQL Server, MySQL, and PostgreSQL.

Time to First Byte: What It Is and Why It Matters

CSS Wizardry

The reason is because mobile networks are, as a rule, high latency connections. Database queries: Pages that require data from a database will incur a cost when searching over it.

Latency: Will it undermine the most interesting 5G use cases?


While current network speeds may be enough to meet the latency requirements of 4G applications, 5G will necessitate a change, if only because the continental US is ~60ms wide, meaning that a datacenter on one coast communicating with another datacenter on the opposite coast will be too slow for 5G. If I am wearing a VR headset and turn my head, the network has to send the information for what to display before I would see it. This requires 1 ms network latency.

Bandwidth or Latency: When to Optimise for Which

CSS Wizardry

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. how long it takes for a bit of data to travel across the network from one node or endpoint to another. a CDN) or mitigating network overhead (e.g.

Using Cache in Spring Boot


Let's imagine a web application, where for each request received, it must read some configuration data of a database. That data doesn't change usually, but the application, in each request, must connect, execute the correct instructions to read the data, pick it up from the network, etc. Imagine also that the database is very busy or the connection is slow.

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Customer Conversations - How Intuit and Edmodo Innovate using.

All Things Distributed

From tax preparation to safe social networks, Amazon RDS brings new and innovative applications to the cloud. One of the services that is very successful in driving innovation at our customers in this context is Amazon RDS , the Relational Database Service. Amazon RDS removes the headaches of running a relational database service reliably at scale, allowing Amazon RDS customers to focus on innovation for their customers. All Things Distributed.

Nutanix AES: Performance By Example.


How to reduce database restore time by 50%. I am using X-Ray to simulate a 1TB data restore into an existing database. Even with faster networks, AES will still be a benefit because the CPU and SSD resource usage is also lower.

Meta-learning neural Bloom filters

The Morning Paper

Being an ICLR paper of course, you won’t be surprised to learn that the solution involves neural networks. Instead of learning from scratch, we draw inspiration from the few-shot leaning advances obtained by meta-learning memory-augmented neural networks.

Resolve performance incidents faster with Dynatrace Real User Monitoring for SAP GUI (Preview)


This also helps the Operations teams that are tasked with SAP user performance problem triaging, which usually requires cross-disciplinary knowledge, ranging from network monitoring through infrastructure load and dependencies to SAP application and transaction specifics. Dynatrace news.

Fostering a Web Performance Culture

José M. Pérez

Simulate bad network conditions and slow CPUs and make your project resilient. How would you architecture a non-trivial size web project (client, server, databases, caching layer)? Web Performance is not only about understanding what makes a site fast.

Even more amazing papers at VLDB 2019 (that I didn’t have space to cover yet)

The Morning Paper

MongoDB is an important database, and this paper explains the tunable (per-operation) consistency models that MongoDB provides and how they are implemented under the covers. Microsoft have a paper describing their new recovery mechanism in Azure SQL Database , the key feature being that it can recovery in constant time. On one of the themes that captures my imagination, how changing hardware platform influence system design: Rethinking database high availability with RDMA networks.

Tuning SQL Server Reporting Services

SQL Performance

Many database administrators find themselves having to support instances of SQL Server Reporting Services (SSRS), or at least the backend databases that are required for SSRS. The ReportServer database is encrypted and certain operations require restoring the symmetric key.

Optimize Citrix platform performance and user experience with a new extension (Preview)


Therefore, it requires multidimensional and multidisciplinary monitoring: Infrastructure health —automatically monitor the compute, storage, and network resources available to the Citrix system to ensure a stable platform. Dynatrace news.

Stuff The Internet Says On Scalability For October 5th, 2018

High Scalability

Hey, wake up! It's HighScalability time: Halloween is early. Do you know what's hiding inside your computer? Probably not. bloomberg ). Do you like this sort of Stuff? Please support me on Patreon. I'd really appreciate it. Know anyone looking for a simple book explaining the cloud?

MezzFS?—?Mounting object storage in Netflix’s media processing platform

The Netflix TechBlog

in Atlas , Netflix’s in-memory dimensional time series database. We ran each combination of replay file and buffering strategy 10 times each inside containers with 2 Gbps network and 16 CPUs, recording the total time to process all the operations in the replay files. MezzFS?—?Mounting

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Declarative recursive computation on an RDBMS

The Morning Paper

Declarative recursive computation on an RDBMS… or, why you should use a database for distributed machine learing Jankov et al., Today’s paper choice, subtitled “ Why you should use a database for distributed machine learning ” seeks to fill that gap.