etcd vs FoundationDB
etcd
etcd.ioFoundationDB
foundationdb.orgSide by side
| Figure | etcd | FoundationDB |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Key-Value Databases | 8.0 (#7) | 7.8 (#10) |
| Spec score · Distributed Systems | 8.0 (#13) | 7.7 (#19) |
| Fault tolerance | It handles leader elections during network partitions and can tolerate machine failure, including failure of the leader node. | Data is replicated across multiple servers, and the system automatically finds a new location for a lost copy when a server fails. |
| Performance | The project states etcd is benchmarked at thousands of writes per second per instance. | The documentation describes FoundationDB as suited to read/write workloads and also performant for write-intensive workloads. |
| Security | etcd supports TLS and client-certificate authentication for client-to-server and peer communication, but these security features are not enabled by default. | FoundationDB supports TLS for communication security and authentication, but cluster connections are unencrypted by default. |
Plans
In their own words
etcd
etcd is an open-source, strongly consistent distributed key-value store for data used by distributed systems and clusters of machines. It arranges values in hierarchical directories and lets clients watch keys or directories for changes. Clients can read and write values with standard HTTP tools such as curl, and keys may have optional time-to-live expiration. The project uses the Raft protocol and handles leader elections during network partitions, including when a leader machine fails. etcd is a core Kubernetes component and its primary datastore. The project provides pre-built binaries, source builds, and container images. Linux on AMD64 and ARM64 is tier 1; Darwin and Windows on either architecture are tier 3, and other platforms are unsupported. TLS and client-certificate authentication are supported for client and peer connections, but neither is enabled by default. The software is self-hosted and licensed under Apache 2.0, with a listed price of free. The integrations listing includes Kubernetes, CoreDNS, and language client libraries, while warning that third-party tools and libraries there are not tested or maintained by the etcd team.
FoundationDB
FoundationDB has no write-up on Specifiction yet; its figures are above.