--- title: "What happened to Hadoop?" publication: "DB Weekly" issue: 269 published_at: "2019-08-30" canonical_url: "https://dbweekly.com/issues/269" --- This week's database news #269 — August 30, 2019 [Read on the Web](https://dbweekly.com/issues/269) Database Weekly [![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60/twpfxqdmxauewek7x3c1.jpg)](https://architecht.io/what-happened-to-hadoop-211aa52a297) [What Happened to Hadoop](https://architecht.io/what-happened-to-hadoop-211aa52a297) — Hadoop was often called ‘the next big thing’ in enterprise IT, until it wasn’t. A former write for Gigaom takes a high level look at the trends that pushed Hadoop out of the spotlight. Derrick Harris [The Difference Between Isolation Levels and Consistency Levels](https://dbmsmusings.blogspot.com/2019/08/an-explanation-of-difference-between.html) — Isolation and consistency are important concepts in multi-user transactional databases that allow concurrent operations, but database vendors describe their level of support for these concepts in a variety of ways.. Daniel Abadi [![\](https://copm.s3.amazonaws.com/4f40a0e3.png)](https://pgexperts.com) [Because Your Data Is Your Business](https://pgexperts.com) — PGX provides complete PostgreSQL support, from emergency services through daily operational support, to strategic planning. We’re here for your data ops. PostgreSQL Experts, Inc. sponsor [How Timescale is Building a Distributed Time-Series Database on Top of PostgreSQL](https://blog.timescale.com/blog/building-a-distributed-time-series-database-on-postgresql/) — [TimescaleDB](https://github.com/timescale/timescaledb) is a popular extension that brings time-series database features to Postgres. Here, Timescale share their design, plans, and benchmarks for a new (and still in closed beta) _distributed_ version of TimescaleDB. Mike Freedman and Erik Nordström (Timescale) [This Summer's New BigQuery Features](https://cloud.google.com/blog/products/data-analytics/whats-happening-bigquery-adding-speed-and-flexibility-10x-streaming-quota-cloud-sql-federation-and-more) — The latest updates for Google Cloud’s BigQuery data warehouse include a 10x streaming quota increase, automatic re-clustering, and importing TensorFlow models for making batch predictions upon BigQuery table data. Google Cloud Blog [Amazon Forecast: Now Generally Available](https://aws.amazon.com/blogs/aws/amazon-forecast-now-generally-available/) — This fully managed time-series forecasting service claims to deliver highly accurate forecasts with no machine learning experience. Amazon Web Services **Quick bytes:** - Chinese e-commerce giant Baidu is building [a new data platform around Intel Optane.](https://www.enterpriseai.news/2019/08/29/baidu-embraces-intel-optane-for-in-memory-databases/) Here's the [case study document.](https://newsroom.intel.com/wp-content/uploads/sites/11/2019/08/baidu-feed-case-study.pdf) - Only two weeks ago we were hearing about how [Python is 'strangling R to death'](https://www.datanami.com/2019/08/15/is-python-strangling-r-to-death/) but the [R Foundation is on a roll funding-wise.](https://www.datanami.com/2019/08/28/r-backers-tout-funding-milestone-seek-comeback/) - [ArangoDB 3.5 is out.](https://www.arangodb.com/2019/08/multi-model-database-arangodb-3-5-released-distributed-joins-streaming-transactions-extended-graphdb-search-capabilities/) 💻 Jobs [Lead Security Engineer](https://grnh.se/59299dec1) — Make an impact as our first Security Engineer, focusing on driving innovation & best practices around our cloud security efforts. Cockroach Labs [DB developers are in demand on Vettery](https://www.vettery.com/tech?utm_source=newsletter&utm_medium=cooper-dbweekly&utm_term=tech&utm_content=grouped&utm_campaign=ad-88878) — Make a free profile, name your salary, and connect with hiring managers from top employers. Vettery 📒 Everything else [SirixDB: Concepts of an Evolutionary, Temporal Database System](https://dev.to/johanneslichtenberger/sirixdb-concepts-of-an-evolutionary-temporal-database-system-ef4) — A detailed description of the architectural concepts of [SirixDB](https://sirix.io/), a log-structured temporal NoSQL document store. Johannes Lichtenberger ▶[Discussing Time Series Databases with Rob Skillington](https://softwareengineeringdaily.com/2019/08/21/time-series-databases-with-rob-skillington/) — A time series database is optimized for the storage of high volumes of sequential data across time. Uber’s Rob Skillington talks about their use cases and about [M3DB](https://www.m3db.io/), a distributed time series database he helped create. Software Engineering Daily podcast [MongoDB Atlas is a Powerful and Reliable Cloud Database. Try Now](https://www.mongodb.com/cloud/atlas/lp/general/try?utm_campaign=cooperpress&utm_source=db&utm_medium=sponsored_newsletter) MongoDB Atlas sponsor [Enterprise Search in 2020 and Beyond: 5 Trends to Watch](https://www.datanami.com/2019/08/23/enterprise-search-in-2020-and-beyond-5-trends-to-watch/) — Apparently enterprise search has remained ‘stuck in the 90s’ but 2020 will be the ‘year of enterprise search’ as AI and natural language approaches take hold. Datanami [Row Level Security, Views and a Lot of Magic in PostgreSQL](https://www.cybertec-postgresql.com/en/postgresql-row-level-security-views-and-a-lot-of-magic/) — Row Level Security (RLS) is a key PostgreSQL feature that lets you define granular policies on which rows specific users can view or manipulate. Here’s a look at how they work and a problem Cybertec discovered with the feature. Hans-Jürgen Schönig [Dqlite: High-Availability SQLite with Raft Consensus](https://dqlite.io/) — From the company behind Ubuntu is an ‘enterprise grade’ version of SQLite aimed at edge and IoT applications. Canonical Ltd. [SQLiteWrapper: An Extensible and Lightweight C++17 Wrapper for SQLite](https://github.com/trailofbits/sqlite_wrapper) Trail of Bits A **[Cooperpress](https://cooperpress.com/)** publication. 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