Repo brief: apache/iceberg

Generated by RepoPilot · document generated 2026-09-16 · concise human review Evidence snapshot · analyzed 2026-09-16T14:01:09.256Z · commit 1019497e35a6

Verdict

Healthy — Strong maintenance signals

• Last commit today
• 39+ active contributors
• Distributed ownership (top contributor 17% of recent commits)
• Apache-2.0 licensed
• 2 more receipts on the live page

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against OpenSSF Scorecard

What it is

Apache Iceberg is a high-performance, open table format for huge analytic datasets that enables multiple SQL engines (Spark, Trino, Flink, Presto, Hive, Impala) to safely read and write the same tables concurrently. It brings ACID semantics, schema evolution, and hidden partitioning to big data by providing a standardized specification and reference Java implementation for reliable data lake operations. Modular monorepo organized by integration layer: api/ contains public API contracts (Accessor, BatchScan, DeleteFile interfaces), core/ provides reference implementations, aliyun/ and cloud-specific directories contain storage backend connectors (OSSFileIO, AliyunProperties). Build…

Start here

Open these first:

• api/src/main/java/org/apache/iceberg/Table.java — Core abstraction representing an Iceberg table with operations for schema, partitioning, snapshots, and data mutations.
• api/src/main/java/org/apache/iceberg/Snapshot.java — Represents an immutable point-in-time view of table state; essential for understanding versioning and time-travel semantics.
• api/src/main/java/org/apache/iceberg/Schema.java — Defines table schema with column metadata; fundamental to all data serialization and query planning.
• api/src/main/java/org/apache/iceberg/PartitionSpec.java — Specifies how table data is partitioned; critical for understanding data organization and query pruning.
• api/src/main/java/org/apache/iceberg/TableScan.java — Entry point for querying table data with filtering and projection support; central to query execution.

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

Verify Java 17 or 21 is installed, then: git clone https://github.com/apache/iceberg.git && cd iceberg && ./gradlew build. To skip tests for faster iteration: ./gradlew build -x test -x integrationTest. To fix code…

Daily commands:

This is a library/framework repository, not a runnable application. Build with ./gradlew build to compile all modules. To develop against Iceberg: depend on iceberg-core in your project, or use engine-specific bundles…

…shortened for this brief.

Key cautions & unknowns

• Java 17+ is required (not Java 11 or earlier); Gradle spotlessApply must pass before PRs are accepted; AWS/Aliyun credentials and dependencies (software.amazon.awssdk:* BOM) are pulled transitively in respective…
• Published-advisory coverage was unavailable for the captured dependencies.
• Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

• Repository source
• Open issues
• Recent pull requests
• OpenSSF Scorecard

Evidence note

Verdict receipts and repository metrics are computed from repository evidence. Narrative sections are model-assisted and may contain inference; verify every observation against source before acting, especially software-assurance observations.

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