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The Distributed SQL Blog

Thoughts on distributed databases, open source, and cloud native

Community NewsCompany NewsDistributed SQLPostgreSQLYugabyteDB 1.1

October 25, 2018
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Introducing YSQL: A PostgreSQL Compatible Distributed SQL API for YugabyteDB

YugaByte’s mission from day one has been to simplify operational database infrastructure. We are doing so by bringing together the best aspects of SQL and NoSQL into a single transactional, high-performance database. I am pleased to announce a key milestone in our mission with the formal introduction of YSQL, YugabyteDB’s PostgreSQL-compatible distributed SQL API, as part of the recent 1.1 release. YSQL (currently in beta) becomes the third member of our multi-API family that previously included two NoSQL APIs,

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ACID TransactionsApache CassandraHow It Works

October 22, 2018
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Apache Cassandra: The Truth Behind Tunable Consistency, Lightweight Transactions & Secondary Indexes

ACID transactions were a big deal when first introduced formally in the 1980s in monolithic SQL databases such as Oracle and IBM DB2. Popular distributed NoSQL databases of the past decade including Apache Cassandra initially focused on “big data” use cases that did not require such guarantees and hence avoided implementing them altogether. Our post, “A Primer on ACID Transactions: The Basics Every Cloud App Developer Must Know” details the various types of ACID transactions (single key,

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ACID TransactionsCockroachDBGoogle SpannerHow It Works

October 11, 2018
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Google Spanner vs. Calvin: Is There a Clear Winner in the Battle for Global Consistency at Scale?

Prof. Daniel Abadi, lead inventor of the Calvin transaction management protocol and the PACELC theorem, wrote a thought-provoking post last month titled “NewSQL database systems are failing to guarantee consistency, and I blame Spanner”. The post takes a negative view of software-only Google Spanner derivative databases such as YugabyteDB and CockroachDB that use Spanner-like partitioned consensus for single shard transactions and a two phase commit (2PC) protocol for multi-shard (aka distributed) ACID transactions.

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How It WorksHow ToYugabyteDB 1.1

October 2, 2018
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YugabyteDB 1.1 New Feature: Public IPs to Simplify Multi or Hybrid Cloud Database Deployments

Welcome to another post in our ongoing series that highlights new features from the latest 1.1 release announced last week. Today we are going to look at the importance of public IP addresses and hostnames in simplifying multi-cloud and hybrid cloud deployments.

In modern cloud deployments, servers often have a combination of private IP addresses (used in the private LAN and often the IP address of the network interface on the server),

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Apache CassandraCommunity NewsHow It WorksMongoDBYugabyteDB 1.1

September 26, 2018
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YugabyteDB 1.1 New Feature: Document Data Modeling with the JSON Data Type

Welcome to another post in our ongoing series that highlights new features from the latest 1.1 release announced last week. Today we are going to look at document data modeling using the native JSON data type available in YugabyteDB’s Cassandra compatible YCQL API. Note that this data type is specific to YugabyteDB and is not part of the standard Cassandra Query Language (CQL).

With YugabyteDB’s native JSON support,

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Apache CassandraCommunity NewsHow It WorksMongoDBYugabyteDB 1.1

September 25, 2018
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YugabyteDB 1.1 New Feature: Speeding Up Queries with Secondary Indexes

Welcome to another post from our ongoing series where we highlight a new feature from the latest 1.1 release! Today we are going to look at secondary indexes.

Defining Secondary Indexes

A database index is a data structure that improves the speed of data retrieval operations on a database table. Typically, databases are very efficient at looking up data by the primary key. A secondary index can be created using one or more columns of a database table,

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Apache CassandraCommunity NewsCompany NewsPerformance BenchmarksPostgreSQLRelease AnnouncementsYugabyteDB 1.1

September 21, 2018
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Technical Deep Dive into YugabyteDB 1.1

We announced the general availability of YugabyteDB 1.1 earlier this week. You can download the latest version for your OS or use our default container image as documented in our Quick Start page.

YugabyteDB is an open source database for high performance applications that require ACID transactions and multi-region data distribution. By combining transactional NoSQL and distributed SQL in a single database, YugabyteDB eliminates the need for multiple databases.

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Community NewsCompany NewsDistributed SQLPostgreSQLRelease AnnouncementsYugabyteDB 1.1

September 19, 2018
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Announcing YugabyteDB 1.1 and Company Update

The team at YugaByte is excited to announce that YugabyteDB 1.1 is officially GA! You can download the latest version from our Quick Start page. New in this release:

YugabyteDB Open Source

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Community NewsCompany News

September 19, 2018
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Ravi Murthy: Starting a New Chapter with YugaByte

In case you missed the announcement, Ravi Murthy has joined YugaByte as our VP of Engineering. Read on to learn more about his experiences leading the teams who managed the explosive growth of applications and data at Facebook, plus what’s next at YugaByte!

After almost 7 years at Facebook, I am super-excited to start in my new role as YugaByte’s VP of Engineering. This post provides a brief history of my career through the years,

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ACID TransactionsCommunity NewsDistributed SQLHow It WorksJepsen TestsPerformance Benchmarks

September 17, 2018
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Jepsen Testing on YugabyteDB

At YugaByte, our mission is to build a robust, reliable, distributed OLTP database. Needless to say, we take correctness and technical accuracy of our claims very seriously. Therefore, we absolutely love a testing framework like Jepsen which helps verify correctness and are fans of Kyle Kingsbury’s work!

Here is a summary of what we have done so far in regards to Jepsen:

  • We have performed our own DIY style Jepsen testing
  • The YugabyteDB Jepsen testing repository is open source
  • For the current suite of Jepsen tests for YugabyteDB that we have tested in a loop,

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