--- title: "MongoDB 4.4, SQLite for Jupyter, and more funding for Couchbase" publication: "DB Weekly" issue: 308 published_at: "2020-06-12" canonical_url: "https://dbweekly.com/issues/308" --- Plus more database news, views, and links. #308 — June 12, 2020 [Read on the Web](https://dbweekly.com/issues/308) Database Weekly [![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60/v1591962740/b9iageezywazh2pbym6d.png)](https://github.com/xgenecloud/xgenecloud) [XgeneCloud: Instant REST and GraphQL APIs on any Database](https://github.com/xgenecloud/xgenecloud) — Where ‘any’ is one of MySQL, Postgres, MsSQL, SQLite, or MariaDB :-) There’s quite a lot of pieces to this and they seem to be forming [a company](https://xgenecloud.com/) around the tech, but it’s open source nonetheless. xgenecloud [Announcing MongoDB 4.4 and MongoDB Cloud](https://www.mongodb.com/blog/post/announcing-mongodb-44--mongodb-cloud) — At this week’s MongoDB.live event, MongoDB 4.4 was unveiled in beta along with _MongoDB Cloud_, basically a name covering all of MongoDB’s various cloud services with _Atlas_ at the center. 4.4’s new features include mirrored reads to keep secondaries warm, hedged reads to improve query times on clusters, and aggregation enhancements. Sahir Azam (MongoDB) [![\](https://copm.s3.amazonaws.com/4ddc4388.png)](https://ravendb.net/articles/nosql-document-database-indexing?utm_source=DB%20Weekly&utm_medium=article&utm_campaign=Indexing%20NoSql) [NoSQL Document Database Indexing](https://ravendb.net/articles/nosql-document-database-indexing?utm_source=DB%20Weekly&utm_medium=article&utm_campaign=Indexing%20NoSql) — Both RavenDB and MongoDB are NoSQL document databases but they fundamentally differ in the way they are designed. On closer inspection, MongoDB is actually more similar in design to a relational database when it comes to the way it executes queries. Hibernating Rhinos sponsor [A Jupyter Kernel for SQLite](https://t.co/oZ8QT5kayF?amp=1) — [Jupyter](https://jupyter.org/) is a set of data visualization and interactive coding tools most commonly associated with the Python world (but it works with _many_ languages). It now has a fully functional interface with SQLite which opens up a lot of new datavis opportunities. Mariana Meireles [Couchbase Raises $105M as it Readies Cloud Offering](https://www.datanami.com/2020/06/08/couchbase-nabs-105m-as-it-readies-cloud-offering/) — There seems to be no stopping database companies raising money lately, with NoSQL vendor Couchbase the latest to plump up its war chest. What’s next for them? The _Couchbase Cloud_, which is expected to debut on AWS soon, promises to be _‘unlike other NoSQL offerings running on the public cloud’_ so watch this space. Datanami **⚡️ Quick bytes:** - Yugabyte joins the list of fund raising database companies [with a $30M series B round.](https://techcrunch.com/2020/06/09/yugabyte-lands-30m-series-b-as-open-source-database-continues-to-flourish/) - Database Activity Streams [are now available](https://aws.amazon.com/about-aws/whats-new/2020/06/database-activity-streams-now-available-for-aurora-with-mysql-compatability/) for Aurora's MySQL variant. - The co-founder of QuestDB explains [what they learnt about math](https://questdb.io/blog/2020/05/12/interesting-things-we-learned-about-sums) to implement 2x faster summation in their database. - Apache Cassandra 4.0 [is on the way.](https://www.zdnet.com/article/faster-than-ever-apache-cassandra-4-0-beta-is-on-its-way/) 💼 Job [DevOps Engineer at X-Team (Remote)](https://x-team.com/remote-devops-engineer-jobs/?utm_source=cooperpress&utm_medium=email-ad&utm_campaign=db) — Join X-Team and work on projects for companies like Riot Games, FOX, Coinbase, and more. Work from anywhere. X-Team 📖 Stories and Tutorials [Cassandra's Counter Columns: Nice in Theory, Hazardous in Practice?](https://www.ably.io/blog/cassandra-counter-columns-nice-in-theory-hazardous-in-practice/) — Apache Cassandra is trusted to work at huge scales but a series of incidents caused engineers at Ably to (temporarily) lose trust in their Cassandra installation. Here’s a cautionary tale of using counters at scale in production. Paddy Byers (Ably) [Stream, Analyze, and Visualize Wi-Fi Data with Kafka and Friends](https://www.confluent.io/blog/stream-analyze-visualize-data-with-kafka-ksqldb-and-friends/) — A real-life example of data streaming, storage, and system integration using Kafka and ksqlDB which you can then pair with Elastic, Neo4j, or MongoDB for analysis, visualizations, etc. Robin Moffatt 🛠 Code and Tools [LinkedIn Open Sources Kube2Hadoop: Secure Access to HDFS from Kubernetes](https://engineering.linkedin.com/blog/2020/open-sourcing-kube2hadoop) — _“To ensure secure HDFS access for AI workloads running on Kubernetes at LinkedIn, we built a Kubernetes-native solution: Kube2Hadoop.”_ Gu, Shahab, Qiang and Hu (LinkedIn) [SQLancer: A Tool for Detecting Logic Bugs in Database Systems](https://github.com/sqlancer/sqlancer) — Considered a ‘research prototype’ for now, SQLancer’s job is to _stress_ a database system into returning inconsistent or illogical results. Written in Java, it supports several databases. Manuel Rigger and Zhendong Su [Keep Your MongoDB Healthy](https://rockset.com/solutions/mongodb/) — Offload read-heavy workloads from MongoDB to a Rockset external index to keep your operational workloads running reliably. Rockset sponsor [Introducing the New MongoDB Shell](https://www.mongodb.com/blog/post/introducing-the-new-shell) — MongoDB has introduced the first beta of the new MongoDB Shell (`mongosh`), a shell designed to be extensible, to support all the new MongoDB platform features coming out, and embeddable, so it can be used in other tools such as VS Code. Massimiliano Marcon (MongoDB) [Multi-Master Replication Solutions for Postgres](https://www.percona.com/blog/2020/06/09/multi-master-replication-solutions-for-postgresql/) — Horizontally scaling Postgres has been enough of a challenge over the years that entire companies (e.g. Citus Data) have been founded to make it easier. This post links to several approaches, whether open or closed source, free or paid. Ibrar Ahmed (Percona) [ModJS: A JavaScript Module for KeyDB and Redis](https://github.com/JohnSully/ModJS) — This isn’t for using [Redis](https://redis.io/) (or the [KeyDB](https://keydb.dev/) fork) _from_ JavaScript but for taking JavaScript _into_ the popular data structure server in case you prefer JavaScript to Lua for scripting it. John Sully A **[Cooperpress](https://cooperpress.com/)** publication. [Change your email address](https://dbweekly.com/edit_subscription/*|UID|*) or[Stop getting this newsletter](https://dbweekly.com/leave/*|UID|*) © Cooper Press Ltd · Fairfield Enterprise Centre, Louth, LN11 0LS, United Kingdom