October 2025 monthly summary: Delivered cloud-storage enhancements and catalog improvements across Doris projects, focusing on business value, reliability, and ecosystem compatibility. Key features include Iceberg REST Catalog support for S3Tables with IAM testing, and Azure Blob Storage integration across data modules. Storage robustness improvements address error handling and cache isolation to prevent cross-credential contamination. Naming standardization reduces confusion across the codebase, and S3 configuration prefixes are normalized to the S3A protocol for better Hadoop compatibility and configuration mapping.

Month 2025-09 Performance Summary: Key features delivered across the Doris ecosystem: - Google Cloud Storage (GCS) integration: Enables GCS buckets to be accessed like S3 via a new GCSProperties class and S3-compatible interaction, expanding cloud storage options for customers migrating to or operating on GCS. - AWS Glue integration enhancements: Adds support for multiple credential providers (SimpleCredentialsProvider, EnvironmentVariableCredentialsProvider, InstanceProfileCredentialsProvider) and IAM AssumeRole for temporary credentials, improving security and flexibility in Glue-based data pipelines. - DeltaLake and private storage endpoint handling improvements: Enhances DeltaLake VPC endpoint parsing and relaxes private object storage endpoint validation to require region for non-standard endpoints, boosting reliability in private/networked storage scenarios. - Iceberg test environment improvements with Doris IO: Updates Iceberg tests to use Doris file I/O implementation for consistent and deterministic testing outcomes. - Observability and quality improvements in test and CI: Includes enhanced ExportJob observability (logging of split tablet IDs, job IDs, and parallelism) and ongoing CI/branch management improvements to streamline validation and reduce release risk. - CI, backup, and repo management cleanup: Streamlines CI workflows, adds branch protection, and simplifies backup/repository management to reduce technical debt and prevent misconfigurations. Major contributors: - Implementations span: Jibing-Li/incubator-doris and related testing suites, with cross-repo commits affecting storage connectors, catalog integrations, validation logic, and CI workflows. Overall impact: - Expanded cloud storage support, stronger access control for data pipelines, improved reliability in distributed storage configurations, and more deterministic testing. These changes together improve time-to-value for customers adopting GCS and AWS Glue environments, while reducing risk in production deployments through better validation, observability, and governance. Technologies/skills demonstrated: - Cloud storage integration (GCS), AWS Glue credential management and IAM AssumeRole, endpoint parsing for DeltaLake, VPC/private storage handling, Doris IO-based testing, and enhanced observability and CI/CD governance.

August 2025 performance snapshot focused on unifying metadata handling, hardening cross-storage isolation, and strengthening security and reliability of catalog integrations. Delivered unified metastore parameter handling for Paimon/HMS with AbstractPaimonProperties and a single Options object, including hive.metastore.username support and improved initialization reliability. Implemented per-storage configuration isolation and unified object storage access via the HDFS s3a protocol to prevent cross-storage parameter overwrites across OSS, OBS, S3, and COS, with independent AWS connection timeout settings for each storage. Added Iceberg HMS FileIO integration with Kerberos, conditionally enabling FILE_IO_IMPL based on HdfsProperties and Kerberos. Enforced authentication for Iceberg branch and tag DDL operations to prevent unauthorized metadata changes. Introduced Broker storage fallback to enhance robustness when conversions to other backends fail. Expanded test coverage with regression tests for Hive and Iceberg catalog integrations across cloud storages and authentication mechanisms, and improved test stability through configurable parameters and random suffixes.

July 2025 monthly summary focusing on delivering a more robust and scalable data access and metastore integration story, with architecture-driven refactors and targeted bug fixes that improve reliability, configurability, and cross-storage/metastore compatibility.

June 2025 focused on delivering a unified and scalable storage backend for incubator-doris, strengthening data access reliability and enabling multi-backend support. Key outcomes include a comprehensive File System and Storage Backend Overhaul that unifies FS across V1/V2, migrates code to a new FS, integrates with Storage and Azure, and refactors the FS factory to support multiple backends. A critical Iceberg Catalog Access Authentication Fix was implemented to ensure proper Kerberos authentication context when loading namespace metadata. Stability and maintenance work modernized dependencies (Parquet 1.15.2, commons-validator 1.9.0), improved CI workflows, removed unused HMS JDBC support, and enhanced test stability. Additional improvements include OSS-HDFS URI detection fixes and Aliyun OSS S3 endpoint compatibility, which broaden cloud storage compatibility and reduce deployment friction.

Monthly summary for May 2025 (Jibing-Li/incubator-doris) Key features delivered: - Tomcat Dependency Upgrade for Security and Stability: Upgraded Tomcat from 8.5.86 to 9.0.104 to incorporate fixes and patches; improves security and stability. Commit: 65d1e61cc40a8190330aa50c0058b4f565fd8e5d. - Multi-backend Storage Support for BACKUP/RESTORE/LOAD/TVF: Refactored storage parameter handling to support multiple storage backends, unify parsing, enable automatic schema detection, and route to appropriate storage backends; maintains backward compatibility and adds tests. Commit: 5ea8025defb9cca8d173c06120f267a59582c72d. - IAM Role-based Authentication for S3 and Connectivity Test Refactor: Add S3 IAM Role support when AK/SK are not provided, and refactor connectivity test to use headBucket for robustness across S3-like systems. Commit: bc396e1b7b40b5e1741ecb53619a7a4575e9b618. Major bugs fixed: - Test Stability Fix: Increased test JVM heap size from -Xmx512m to -Xmx1024m to resolve OutOfMemory errors when running tests with JMockit and JaCoCo; fixes crashes in RemoteFileSystemTest. Commit: 403e7b5fc72167ab9b457f938e8c0c18f60207d6. Overall impact and accomplishments: - Security and stability improvements across core dependencies. - Broadened storage backend support for data workflows with reliable tests. - Improved CI reliability and test stability, reducing flaky failures. Technologies/skills demonstrated: - Dependency management and security hardening (Tomcat upgrade). - Java performance tuning and test memory management. - Refactoring for modular storage backends, parameter handling, and robust S3-like authentication. - Test-driven development with cross-provider compatibility.

April 2025 monthly summary for Jibing-Li/incubator-doris. Focused on feature delivery and governance enhancements. Delivered unified storage configuration and protocol handling across S3, COS, HDFS, and Azure Blob; introduced Unified Metastore Configuration Framework; updated code ownership governance for the FS module. These efforts improve extensibility, maintainability, and governance, enabling faster integration of new storage backends and metastores.

Concise monthly summary for 2025-03 focusing on reliability, governance, and security testing in the Doris project. Delivered features/enhancements improve configuration clarity, governance automation for release processes, and expanded test coverage for Kerberos/HDFS; fixed critical resource management issue during catalog drops. Overall impact: reduced risk in production deployments, clearer configuration, and stronger security/testing posture, enabling safer and faster releases.

February 2025 summary for Jibing-Li/incubator-doris: Delivered governance hardening and stability improvements, fixed authentication initialization for non-built-in plugins, and addressed RemoteFileSystem shutdown isolation to prevent cross-instance interference. These changes enhance security posture, reliability, and developer experience across multi-environment deployments.

Overview: In Jan 2025, delivered critical stability fixes for the Doris project and strengthened repository governance, aligning with sustainability and code quality goals. Key outcomes include bug fixes to the InsertJob execution flow, scheduling correctness, and governance/maintenance enhancements that improve reliability, compliance, and deployment confidence.

December 2024 monthly summary for Jibing-Li/incubator-doris: A focused delivery sprint emphasizing security hardening, reliability, observability, and CI/CD stability. The work delivered price-to-value improvements across Kerberos authentication, job lifecycle correctness, task dispatching, scheduler observability, and resource management, contributing to stronger security, higher throughput, and more stable operations.

November 2024 monthly summary for Jibing-Li/incubator-doris. Focused on automating workflows, stabilizing scheduling, and simplifying CI/CD configuration to reduce maintenance overhead. Key outcomes include automated traceable PR cherry-picks, resolved SLF4J binding conflicts, improved job scheduling reliability, robust Insert job error handling, and streamlined CI/CD checks across the repository.