apache/paimon
Dec 2024 – Sep 2025
7 Months active
Languages Used
JavaYAML
Technical Skills
Catalog ManagementHivePerformance OptimizationTestingBackend DevelopmentCaching
XiaoHongbo
PROFILE
Xiaohongbo
Over seven months, this developer enhanced the apache/paimon repository by building and refining RESTful catalog APIs, focusing on scalable listing, robust pagination, and lifecycle management. They introduced paged and pattern-matched endpoints for tables, views, and partitions, leveraging Java and OpenAPI Specification to ensure consistency and clarity. Their work addressed cache invalidation in multi-database environments, improved test reliability, and aligned documentation with evolving API structures. Through targeted bug fixes and code refactoring, they stabilized Hive Catalog operations and optimized performance. The developer’s contributions demonstrated depth in backend development, API design, and catalog management, resulting in a more reliable and maintainable codebase.
Overall Statistics
Feature vs Bugs
69%Features
Repository Contributions
16Total
Bugs
4
Commits
16
Features
9
Lines of code
5,786
Activity Months7
Your Network
142 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 (apache/paimon): Delivered a targeted API documentation correctness improvement for the Catalog API, fixing a Javadoc typo and aligning parameter docs for listTablesPaged and listTableDetailsPaged with the actual method signatures. The change enhances API clarity and developer onboarding without changing runtime behavior.
1 Commits • 1 Features
Sep 1, 2025September 2025 (apache/paimon): Delivered a targeted API documentation correctness improvement for the Catalog API, fixing a Javadoc typo and aligning parameter docs for listTablesPaged and listTableDetailsPaged with the actual method signatures. The change enhances API clarity and developer onboarding without changing runtime behavior.
September 2025
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 — Apache Paimon (apache/paimon) delivered two major REST-related feature improvements with accompanying tests and API stability enhancements. Key changes: 1) Partition naming utility (PartitionUtils.buildPartitionName) and multi-level paged partition listing integrated into RESTCatalogServer, with new test testListPartitionsPagedWithMultiLevel. 2) REST API enhancement to return Identifier objects for global table/view listings, introducing ListTablesGloballyResponse and ListViewsGloballyResponse and aligning OpenAPI/specs. Minor internal stability improvement via hotfix to optimize return types (ListTablesGlobally & ListViewsGlobally). Impact: more robust and consistent API, easier client integration, better data representation for global listings, and improved support for multi-level partition queries.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 — Apache Paimon (apache/paimon) delivered two major REST-related feature improvements with accompanying tests and API stability enhancements. Key changes: 1) Partition naming utility (PartitionUtils.buildPartitionName) and multi-level paged partition listing integrated into RESTCatalogServer, with new test testListPartitionsPagedWithMultiLevel. 2) REST API enhancement to return Identifier objects for global table/view listings, introducing ListTablesGloballyResponse and ListViewsGloballyResponse and aligning OpenAPI/specs. Minor internal stability improvement via hotfix to optimize return types (ListTablesGlobally & ListViewsGlobally). Impact: more robust and consistent API, easier client integration, better data representation for global listings, and improved support for multi-level partition queries.
May 2025
2 Commits • 2 Features
May 1, 2025May 2025 performance highlights focused on expanding and refining the REST API surface for table/view summaries and aligning OpenAPI documentation. Delivered user-facing endpoints with improved search capabilities and ensured documentation accurately reflects current API structure, contributing to faster integration and reduced onboarding time for developers.
2 Commits • 2 Features
May 1, 2025May 2025 performance highlights focused on expanding and refining the REST API surface for table/view summaries and aligning OpenAPI documentation. Delivered user-facing endpoints with improved search capabilities and ensured documentation accurately reflects current API structure, contributing to faster integration and reduced onboarding time for developers.
May 2025
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for apache/paimon focused on stabilizing REST endpoints, improving test reliability, and enhancing list capabilities for better developer UX and scalability.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for apache/paimon focused on stabilizing REST endpoints, improving test reliability, and enhancing list capabilities for better developer UX and scalability.
March 2025
6 Commits • 3 Features
Mar 1, 2025March 2025 (apache/paimon) – Delivered scalable REST Catalog enhancements with robust pagination and API lifecycle management. Implemented paged listing for REST Catalog entities (tables, views, partitions) via new PagedList and pagination-enabled interfaces, plus a stability fix to avoid dead loops. Extended paged databases listing with ListDatabasesPaged across AbstractCatalog/DelegateCatalog/RESTCatalog and nextPageToken support in ListDatabasesResponse. Expanded catalog REST API surface with OpenAPI definitions for create/list/get/alter/drop and a new get-by-ID endpoint, plus a catalog lifecycle status field (NEW/INITIALIZING/RUNNING/DELETING/DELETED). These changes enable efficient, scalable catalog queries, simpler integration for clients, and lifecycle-aware catalog management.
6 Commits • 3 Features
Mar 1, 2025March 2025 (apache/paimon) – Delivered scalable REST Catalog enhancements with robust pagination and API lifecycle management. Implemented paged listing for REST Catalog entities (tables, views, partitions) via new PagedList and pagination-enabled interfaces, plus a stability fix to avoid dead loops. Extended paged databases listing with ListDatabasesPaged across AbstractCatalog/DelegateCatalog/RESTCatalog and nextPageToken support in ListDatabasesResponse. Expanded catalog REST API surface with OpenAPI definitions for create/list/get/alter/drop and a new get-by-ID endpoint, plus a catalog lifecycle status field (NEW/INITIALIZING/RUNNING/DELETING/DELETED). These changes enable efficient, scalable catalog queries, simpler integration for clients, and lifecycle-aware catalog management.
March 2025
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for apache/paimon highlights a focused effort on cache reliability in multi-database environments. Delivered a scoped table invalidation fix that confines invalidation to the relevant database, eliminating cross-database cache clears and improving table caching reliability. The change reduces stale reads and cache churn in deployments with identical table names across databases. This work is tracked through commit 4904d919e9a2ea1f49aaaccd0e265698d1a45cc4 and related to issue (#4895).
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for apache/paimon highlights a focused effort on cache reliability in multi-database environments. Delivered a scoped table invalidation fix that confines invalidation to the relevant database, eliminating cross-database cache clears and improving table caching reliability. The change reduces stale reads and cache churn in deployments with identical table names across databases. This work is tracked through commit 4904d919e9a2ea1f49aaaccd0e265698d1a45cc4 and related to issue (#4895).
December 2024
1 Commits
Dec 1, 2024December 2024 monthly summary for apache/paimon focusing on stabilizing Hive Catalog operations and improving test coverage. The key effort was addressing potential timeouts in Hive Catalog table listing by introducing batched retrieval in listTablesImpl, complemented by targeted tests to validate batching behavior across configurations.
1 Commits
Dec 1, 2024December 2024 monthly summary for apache/paimon focusing on stabilizing Hive Catalog operations and improving test coverage. The key effort was addressing potential timeouts in Hive Catalog table listing by introducing batched retrieval in listTablesImpl, complemented by targeted tests to validate batching behavior across configurations.
December 2024
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Quality Metrics
Correctness96.8%
Maintainability96.2%
Architecture96.8%
Performance93.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaYAML
Technical Skills
API DesignAPI DevelopmentBackend DevelopmentBug FixingCachingCatalog ManagementCode RefactoringDatabase ManagementDistributed SystemsDocumentationHiveJavaJava DevelopmentOpenAPI SpecificationPattern Matching
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