Apache Accumulo vs Transwarp Hyperbase

Apache Accumulo is a free, open-source sorted, distributed key/value store for storing and retrieving large datasets across a cluster. It uses Apache Hadoop HDFS for data storage and Apache ZooKeeper for consensus. Each key/value pair can carry a security label, so query results can be restricted according to a user’s authorizations. Accumulo Iterators can modify key/value pairs at different stages of data management. Clusters can use one or more HDFS instances, and nodes can be added or removed as stored data changes. The project says its client API follows Long Term Maintenance releases and semantic versioning, and that each release undergoes extensive testing. The software is licensed under Apache License, Version 2.0. The downloads page lists source and binary archives for versions 4.0.0-alpha-1, 3.0.0, and 2.1.6; the project identifies 4.0.0-alpha-1 as alpha and says alpha or beta releases are not production ready. General questions can go to the user mailing list, while the dev list serves contributor discussions. An interactive tour teaches the Java API through exercises and is designed for Accumulo 2.1.x or greater.

Transwarp Hyperbase is a self-hosted NoSQL wide-table database for real-time, low-latency access under high concurrency. It supports precise and range queries, stream-processing applications, full-text search and retrieval of unstructured data. Stored content can include structured records, text, images, videos and objects. Distributed full-text indexing through Transwarp Scope supports global, local and high-dimensional indexes, advanced filters and automatic index selection. Hyperbase accepts ANSI SQL 2003 syntax and is compatible with open-source HBase. Transwarp says it supports concurrent queries for millions of users and high-volume insert, modify and delete operations. SQL Bulkload handles data migration, while DSTool provides one-click cluster repair. Transwarp Guardian adds authentication, table access controls and multi-tenancy permissions. The database runs on general server clusters and is listed as part of the TDH data platform. It is available through an API. Pricing is by inquiry, with no public price listed.