Category: Couchbase Architecture
Introducing FTS with N1QL
Topics this article will cover What’s good with N1QL? What about FTS? But why FTS within N1QL? Basic N1QL+FTS queries Deploying N1QL+FTS Syntax(es) Abilities & limitations N1QL+FTS Internals Covered-index vs Non-covered-index queries More N1QL+FTS query examples What’s next? 1. Couchbase’s...
Analytics Explain Plan – Part 1
Co-author: Till Westmann, Senior Director, Engineering Introduction Couchbase Analytics is the “newest kid on the block” amongst all the services available in Couchbase Server. The new service is providing rapid time to insight in many use cases like ship to...
Window functions in Couchbase Analytics
Co-author: Till Westmann, Senior Director, Engineering The bits for Couchbase 6.5, the upcoming release of Couchbase Server, are now available. The Analytics service, which supports efficient parallel query processing, has added support for support for window functions defined in the...
Self-healing Clusters using Kubernetes Persistent Volumes
Prologue Modern business applications are expected to be up 24/7, even during the planned rollout of new features and periodic patching of the Operating System or application. Achieving this feat requires tools and technologies that ensure the speed of development,...
Exercising Control on Quality of Service Using XDCR
XDCR, by design, provides customers the flexibility to tune the number of replications for a given bucket depending on the desired performance. New replication requires streaming all existing documents in the bucket, and, therefore, it exhibits a higher mutation rate...
Advanced Filtering with XDCR 6.5
Customers use XDCR for various use cases from high availability to data locality to disaster recovery to cloud migration and hybrid cloud deployments. To meet these use cases, there are a number of circumstances where they would want to replicate...
Intro to Collections – Dev Preview in Couchbase Server 6.5
Couchbase, a document database, allows great flexibility in storing different types of documents in a single bucket (bucket being the equivalent of a database). There is a frequent need to refer to documents of a similar type together e.g. an...
Understanding Distributed Multi-Document ACID Transactions
Couchbase CTO Ravi Mayuram announced Distributed Multi-document ACID Transactions in Couchbase Server 6.5. I highly recommend reading Ravi’s blog which highlights how Couchbase transactions are an innovative union of ACID guarantees with scale, high-availability, performance and flexibility. In this blog,...
Couchbase 6.5 – Scan Consistency in Analytics
Since the GA back in Nov 2018, Couchbase Analytics is being used in multiple verticals for rapid time to insight – ad-hoc analysis by a payment provider, shopping cart analysis by an e-tailer, next gen ticket booking engine by a...
Cost Based Optimizer for Couchbase N1QL (SQL for JSON)
Authors & Engineering Team: Bingjie Miao, Keshav Murthy, Marco Greco, Prathibha Bisarahalli. Couchbase, Inc. A rule-based optimizer knows rules for everything and cost for nothing – Oscar Wilde Abstract Couchbase is a distributed JSON database. It provides distributed data processing,...
Cipher Suites in Couchbase Server 6.5
For many, “Cryptography” is the little green lock icon next to the web address of their favorite websites, and for others, they might recall the TLS vulnerabilities that have hit in recent years. Data is today’s digital gold, and in...
Rebalance Improvements in Couchbase Server 6.5
Rebalance is a critical component of Couchbase architecture that allows for online cluster management operations including adding/removing nodes, online upgrades of hardware or software, and recovery after node failure. Couchbase Server 6.5 makes rebalance more robust, more manageable, and faster....