This article evaluates whether the distributed databases CockroachDB and YugabyteDB can replace PostgreSQL as the backend for GitLab, detailing the test environment, migration steps, functional checks across core GitLab features, observed errors, and a final comparison of compatibility and stability.
This article evaluates GitLab's compatibility with two PostgreSQL‑compatible distributed databases, CockroachDB and YugabyteDB, by setting up identical environments, running the GitLab setup process, documenting failures and successes, and drawing conclusions about extension support, index compatibility, and overall feasibility.
This article explains YugabyteDB's two‑layer logical architecture, its tablet‑based distributed storage built on Raft groups, the RocksDB‑backed local DocDB, and how it implements distributed transactions using Hybrid Logical Clocks, two‑phase commit, and MVCC, while comparing it with TiDB, CockroachDB and other rivals.
This article provides a comprehensive technical overview of YugabyteDB, covering its two‑layer logical architecture, tablet‑based distributed storage with Raft groups, RocksDB‑backed local storage design, hybrid hash‑range partitioning, and the MVCC‑based two‑phase‑commit transaction model using Hybrid Logical Clocks.
An objective performance comparison between YugabyteDB (v1.3.0.0) and CockroachDB (v19.1.3) was conducted using the official test scenarios, covering write, read, mixed, secondary index, and transactional workloads on a three‑node Docker environment, with analysis of results and conclusions on their relative strengths.
