Baidu Tera

Linux · Self-hosted · API

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Baidu Tera is ranked #8 of 17 in wide-column databases on Freedom251. It runs on API, Linux, Self-hosted.

Compared on wide-column databases

Free plan: Yes
Deployment model: self_hosted
Query interface: multiple
Consistency controls: strong
Transaction support: Yes
Horizontal scaling: Yes

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The record

Product: Tera is a high-performance distributed NoSQL database designed for real-time applications.
Scale: The project says Tera can scale to petabytes of data across thousands of commodity servers.
Data model: Tera stores sparse, distributed, multidimensional tables indexed by row key, column key, and timestamp.
Consistency and availability: Listed features include strict consistency, automatic failover, online schema changes, and snapshots.
Storage and queries: Tera supports RAMDISK, SSD, and disk tables, tiered cache, block cache, and Bloom Filters for real-time queries.
Client interfaces: The project lists C++, Java, Python, and REST APIs.
Integrations: Tera's README lists HDFS and other filesystems, ZooKeeper and Nexus lock services, and Sofa-pbrpc as infrastructure dependencies.
Deployment: The README says Tera can run on raw machines or in Docker, and describes a pseudo-distributed mode on a single host using the local filesystem.
Security and compliance: The repository lists BSD-3-Clause and Apache-2.0 licenses; the README does not state security certifications or compliance claims.
Support and contribution: The README welcomes contributions and provides [email protected] for joining the project.
Intended use: The README describes use in throughput-oriented and latency-sensitive Baidu products, including web indexing, WebPage DB, and LinkBase DB.
Use cases: Baidu says it uses Tera in products including web indexing, WebPage DB, and LinkBase DB, for workloads ranging from throughput-oriented applications to latency-sensitive services.
Sharding: Features include linear and modular scalability, automatic configurable sharding, and ranged or hashed sharding strategies.
Data and consistency: Tera supports MVCC, column-oriented storage with locality groups, and strict consistency.

Where it ranks on Freedom251

Best Wide-Column Databases in 2026#8 of 17

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Sources

github.com/baidu/tera· checked 4 Oct 2026
github.com/baidu/tera/tree/master/doc/en· checked 4 Oct 2026