apache/iceberg
Feb 2026 – Mar 2026
2 Months active
Languages Used
JavaSQL
Technical Skills
ConcurrencyJavaSoftware DevelopmentTestingSQLbackend development
hemanthboyina
PROFILE
Hemanthboyina
Worked on apache/iceberg over a two-month period, focusing on backend reliability and performance for large-scale data processing. Addressed concurrency issues in compute_table_stats by introducing retry logic and enhancing the testing framework to ensure robust statistics computation under multi-threaded workloads. Improved manifest rewrite operations by adding a sort_by parameter, optimizing scan planning and reducing overhead for large datasets. Fixed a correctness bug in the BinPackRewriteFilePlanner to ensure accurate file rewriting. Demonstrated expertise in Java, SQL, and concurrency patterns, with a strong emphasis on testing, validation, and CI-quality practices to deliver more reliable analytics and ingestion pipelines.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
3Total
Bugs
2
Commits
3
Features
1
Lines of code
239
Activity Months2
Your Network
954 peopleSame Organization
@apache.org686
a.huberMember
Akira AjisakaMember
Andrzej BiałeckiMember
Arturo BernalMember
Abhishek KumarMember
Attila BukorMember
VampireAchaoMember
Abhishek ChennakaMember
Andreas DangelMember
Work History
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 development summary for apache/iceberg. Delivered a performance-oriented manifest rewrite enhancement and fixed a correctness bug in the rewrite planning, both accompanied by validation and tests. Resulting changes reduce scan planning overhead and rewrite overhead, and improve reliability on large datasets. Demonstrated strong testing, Spark/Scala development, and CI-quality practices.
2 Commits • 1 Features
Mar 1, 2026March 2026 development summary for apache/iceberg. Delivered a performance-oriented manifest rewrite enhancement and fixed a correctness bug in the rewrite planning, both accompanied by validation and tests. Resulting changes reduce scan planning overhead and rewrite overhead, and improve reliability on large datasets. Demonstrated strong testing, Spark/Scala development, and CI-quality practices.
March 2026
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary: Focused on reliability and robustness of statistics computation under concurrent workloads in apache/iceberg. Delivered a concurrency reliability fix for compute_table_stats with retry logic and updates to the testing framework to guard multi-threaded scenarios. This led to more stable statistics during concurrent writes, improved analytics accuracy, and reduced flaky tests, thereby increasing ingestion reliability and downstream planning quality. Technologies demonstrated include concurrency patterns, fault-tolerant retry logic, test framework enhancements, and test refactoring (TestSetStatistics).
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary: Focused on reliability and robustness of statistics computation under concurrent workloads in apache/iceberg. Delivered a concurrency reliability fix for compute_table_stats with retry logic and updates to the testing framework to guard multi-threaded scenarios. This led to more stable statistics during concurrent writes, improved analytics accuracy, and reduced flaky tests, thereby increasing ingestion reliability and downstream planning quality. Technologies demonstrated include concurrency patterns, fault-tolerant retry logic, test framework enhancements, and test refactoring (TestSetStatistics).
Activity
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture86.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaSQL
Technical Skills
ConcurrencyJavaSQLSoftware DevelopmentTestingbackend developmenttestingunit testing
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