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ZippyDB: the Architecture of Facebook’s Strongly Consistent Key-Value Store
Facebook Engineering recently published how it built its general-purpose key-value store, known as ZippyDB. ZippyDB is Facebook's biggest key-value store, which has been in production for more than six years. It offers flexibility to applications in terms of tunable durability, consistency, availability, and latency guarantees.
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Microsoft Warns Customers about a Critical Vulnerability in Azure Cosmos DB
Azure Cosmos DB is a globally-distributed and fully-managed NoSQL database service. Recently, Microsoft warned thousands of its Cosmos DB customers of a vulnerability that exposes their data. A flaw in the service could grant a malicious actor access keys to steal, edit or delete sensitive data.
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AWS Announces the General Availability of Amazon MemoryDB for Redis
Recently, AWS announced the general availability of Amazon MemoryDB for Redis, a new Redis-compatible, durable, in-memory database. The new database service is intended for applications that require microsecond read and single-digit millisecond write performance with data durability and high availability.
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Google Cloud Improves SLA for Bigtable and Adds New Security Features
Google Cloud has recently raised the availability SLA for Bigtable instances up to 99.999%, matching the SLA for Firestore and Cloud Spanner. The data storage system introduced as well two new security features for enterprise workloads, customer-managed encryption keys (CMEK) and data access audit logs.
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Amazon Adds Global Clusters to DocumentDB
Amazon recently announced support for global clusters on DocumentDB, the document-oriented database compatible with MongoDB.
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Google Provides a Peek into the Architecture of Colossus - Its Storage Foundation
In a recent post, Google provided a glimpse into the architecture of Colossus. Colossus underpins Google's scalable storage system, which serves both its Google Cloud offerings and Google's own globally available services such as YouTube, Google Drive, and Gmail. Five separate components compose Colossus - the client library, curators, metadata database, file servers, and custodians.
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.NET News Roundup - Week of April 12th, 2021
It's been a busy week for the .NET community, with the release of new Visual Studio previews (Windows and Mac), updates to .NET Core 3.1 and 2.1, new releases from the Azure team, and more. InfoQ examined these and a number of smaller stories in the .NET ecosystem from the week of April 12th, 2021.
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Couchbase Details Its Distributed ACID Transaction Architecture
Couchbase recently published a detailed explanation of its distributed multi-document ACID transaction implementation. In its blog post, Couchbase lays out how its DB engine supports the Monotonic Atomic View consistency model, which is a strengthened version of the Read Committed consistency model.
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GitHub Scales Its Rate Limiter Using Redis
Yesterday GitHub engineer Robert Mosolgo posted a detailed account of how GitHub scaled the GitHub API with a sharded, replicated rate limiter in Redis. GitHub migrated from an older Memcached-based rate limiter to a Redis-based one. According to Mosolgo, the new implementation has improved reliability, fixed issues for clients, and reduced GitHub's support load.
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Microsoft Announces Azure Managed Instance for Apache Cassandra
At this year’s Ignite conference, Microsoft announced the public preview of Azure Managed Instance for Apache Cassandra, a NoSQL database product to manage Cassandra-based workloads into Azure cloud.
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PayPal Standardizes on Apache Airflow and Apache Gobblin for Its Next-Gen Data Movement Platform
PayPal recently described how it standardized on Apache Airflow and Apache Gobblin for implementing its next-gen data movement platform. In a recent blog post, PayPal engineers detail how the existing data movement platform evolved into many tools & platforms in a complex and unmanageable ecosystem and their shift towards a new implementation.
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Using Language and Developer Friendly Data Structures with Couchbase
Couchbase APIs have evolved to provide programming language friendly data structures making it easier for programmers to incorporate into the respective programs. Some examples highlight how to use data structures with the Couchbase Python SDK.
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K8ssandra: Production-Ready Platform for Running Apache Cassandra on Kubernetes
DataStax recently released K8ssandra, an open-source distribution of Apache Cassandra for Kubernetes. K8ssandra aims to provide a “production-ready platform”, and this includes automation for operational tasks such as repairs, backups, and monitoring.
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Distributed Key-Value Store etcd Graduates at CNCF
The CNCF announced the graduation of the etcd project - a distributed key-value store used by many open source projects and companies. Originally written at CoreOS, etcd was accepted into the CNCF incubation stage in 2018 and graduated in November 2020.
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Microsoft Announces Zone Redundancy for Azure Cache for Redis in Preview
Recently Microsoft announced that Azure Cache for Redis would support multiple availability zones, expanding the availability and resiliency. The update to the service means customers can significantly enhance the availability of their Azure Cache for Redis instance.