apache/ranger
Nov 2024 – Sep 2025
4 Months active
Languages Used
Java
Technical Skills
AuthorizationBackend DevelopmentConfiguration ManagementHDFSHive IntegrationAccess Control
Mahesh Bandal
PROFILE
Mahesh Bandal
Mahesh Bandal focused on backend development and security enhancements in the apache/ranger repository, addressing complex authorization and access control issues across HDFS and Hive integrations. Over four months, Mahesh resolved five critical bugs, including refining directory deletion permissions by directly evaluating policy hierarchies and improving owner resolution logic in Hive authorization workflows. He enhanced RESTful API reliability by correcting error handling in user update endpoints and strengthened file system access checks by propagating parameters and adding performance logging. Working primarily in Java, Mahesh demonstrated depth in configuration management, file system operations, and policy-driven access control, delivering robust, maintainable solutions to challenging problems.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
5Total
Bugs
5
Commits
5
Features
0
Lines of code
62
Activity Months4
Your Network
653 people
Work History
September 2025
1 Commits
Sep 1, 2025Monthly summary for September 2025 (2025-09): Focused on stability and security for apache/ranger. Key features delivered: none this month; Major bugs fixed: fixed File Hierarchy Access Check bug (RANGER-5294) by adding the missing 'recurse' parameter to FileUtils.isOwnerOfFileHierarchy, wiring it into isURIAccessAllowed, and introducing enhanced performance logging for coarse URI checks. Impact: higher reliability of access checks, reduced security risk, and improved observability and performance for access-control paths. Technologies/skills demonstrated: Java code fixes, parameter propagation, enhanced logging, performance logging, and investigation of access-control paths; commit bc9b02972b349e5624db0fc8832a6703d890a8f9.
1 Commits
Sep 1, 2025Monthly summary for September 2025 (2025-09): Focused on stability and security for apache/ranger. Key features delivered: none this month; Major bugs fixed: fixed File Hierarchy Access Check bug (RANGER-5294) by adding the missing 'recurse' parameter to FileUtils.isOwnerOfFileHierarchy, wiring it into isURIAccessAllowed, and introducing enhanced performance logging for coarse URI checks. Impact: higher reliability of access checks, reduced security risk, and improved observability and performance for access-control paths. Technologies/skills demonstrated: Java code fixes, parameter propagation, enhanced logging, performance logging, and investigation of access-control paths; commit bc9b02972b349e5624db0fc8832a6703d890a8f9.
September 2025
April 2025
1 Commits
Apr 1, 2025April 2025 (apache/ranger) monthly summary focusing on business value and technical achievements.
April 2025
1 Commits
Apr 1, 2025April 2025 (apache/ranger) monthly summary focusing on business value and technical achievements.
January 2025
1 Commits
Jan 1, 2025January 2025: Focused on stabilizing Hive authorization ownership logic in RangerHiveAuthorizer to ensure correct application of owner-based policies and reduce authorization drift. Implemented a targeted fix that retrieves the owner from the objOwners map for databases and columns, with a safe fallback to the metastore, improving accuracy and policy reliability across Hive access paths.
1 Commits
Jan 1, 2025January 2025: Focused on stabilizing Hive authorization ownership logic in RangerHiveAuthorizer to ensure correct application of owner-based policies and reduce authorization drift. Implemented a targeted fix that retrieves the owner from the objOwners map for databases and columns, with a safe fallback to the metastore, improving accuracy and policy reliability across Hive access paths.
January 2025
November 2024
2 Commits
Nov 1, 2024November 2024—apache/ranger: Implemented critical authorization correctness improvements for directory deletion and updated governance records. Key changes include refactoring Ranger authorization logic to remove intermediary flags and directly evaluate policies, ensuring correct permissions in hierarchical directory structures (RANGER-4980). Administrative governance: added Mahesh Bandal to the committers. These efforts improve policy-driven access control, reduce risk of unintended deletions, and reinforce security posture in HDFS file operations.
November 2024
2 Commits
Nov 1, 2024November 2024—apache/ranger: Implemented critical authorization correctness improvements for directory deletion and updated governance records. Key changes include refactoring Ranger authorization logic to remove intermediary flags and directly evaluate policies, ensuring correct permissions in hierarchical directory structures (RANGER-4980). Administrative governance: added Mahesh Bandal to the committers. These efforts improve policy-driven access control, reduce risk of unintended deletions, and reinforce security posture in HDFS file operations.
Activity
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Quality Metrics
Correctness84.0%
Maintainability84.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
Java
Technical Skills
Access ControlAuthorizationBackend DevelopmentConfiguration ManagementFile System OperationsHDFSHive IntegrationJava DevelopmentPerformance Logging
Repositories Contributed To
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