apache/accumulo

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1167 stars · 487 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Apache Accumulo is a sorted, distributed key/value store built on Apache Hadoop's HDFS and Apache ZooKeeper for scalable storage and retrieval of large datasets across a cluster. It offers server-side programming via Iterators and cell-based access control where every key/value pair carries its own security label.

Use cases

• store and query billions of key/value pairs across a cluster
• run a NoSQL database on top of Hadoop HDFS
• enforce cell-level security labels on big data
• build a scalable data store for analytics workloads
• run server-side custom processing with iterators
• replace HBase with a mature Apache distributed table store

When to choose

• you need horizontally scalable sorted key/value storage integrated with the Hadoop ecosystem
• you require fine-grained cell-level access control and security labels
• you want server-side programmability (Iterators) for filtering and computation
• you need a battle-tested, stable Apache project with long-term releases

When to avoid

• you need a simple embedded or single-node database
• you want SQL or rich relational queries
• you cannot operate HDFS and ZooKeeper dependencies
• your dataset is small enough for PostgreSQL, MongoDB, or Redis

Facets

service · maturity stable

database search-engine authorization caching databases big-data microservices security jvm cloud self-hosted key-value-store hadoop zookeeper hdfs sorted-store cell-level-security iterators apache data-engineering linux docker

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