atlanhq/atlas-metastore
Dec 2024 – Sep 2025
7 Months active
Languages Used
JavaGroovyKotlinYAMLCqlSQLGitMarkdown
Technical Skills
API DevelopmentBackend DevelopmentCode InstrumentationGraph DatabasesPerformance MonitoringPerformance Optimization
Suraj
PROFILE
Suraj
Suraj Gupta contributed to the atlanhq/atlas-metastore repository, delivering robust backend features and reliability improvements over seven months. He engineered scalable data access layers, optimized lineage traversal, and enhanced tag management workflows using Java, Cassandra, and Redis. Suraj implemented asynchronous processing, feature flag management, and resilient error handling to support high-throughput, distributed systems. His work included performance instrumentation, cache optimization, and CI/CD integration, resulting in faster debugging and stable builds. By refactoring code, improving observability, and strengthening data consistency, Suraj addressed both functional and operational challenges, demonstrating depth in backend development, concurrency management, and database optimization within a complex production environment.
Overall Statistics
Feature vs Bugs
62%Features
Repository Contributions
179Total
Bugs
43
Commits
179
Features
70
Lines of code
10,662
Activity Months7
Your Network
83 people
Work History
September 2025
26 Commits • 12 Features
Sep 1, 2025September 2025 highlights for atlas-metastore: delivered key reliability and performance features, completed feature testing, and strengthened cache/Redis resilience. Implemented robust error handling across methods, FF testing and implementation completed, and cache improvements including TTL tuning, Redis thundering herd mitigation, and infinite retries. Config and sentinel handling updates (CHECK_SENTINELS_LIST) and tag default flag handling with improved logs contributed to stability and onboarding. Notable stability fixes include Cassandra local setup compaction adjustments and related stability/reversion work. These changes reduce misconfigurations, improve latency and cache warmth, mitigate Redis thundering, and strengthen resilience for production workloads and new tenants.
26 Commits • 12 Features
Sep 1, 2025September 2025 highlights for atlas-metastore: delivered key reliability and performance features, completed feature testing, and strengthened cache/Redis resilience. Implemented robust error handling across methods, FF testing and implementation completed, and cache improvements including TTL tuning, Redis thundering herd mitigation, and infinite retries. Config and sentinel handling updates (CHECK_SENTINELS_LIST) and tag default flag handling with improved logs contributed to stability and onboarding. Notable stability fixes include Cassandra local setup compaction adjustments and related stability/reversion work. These changes reduce misconfigurations, improve latency and cache warmth, mitigate Redis thundering, and strengthen resilience for production workloads and new tenants.
September 2025
August 2025
48 Commits • 15 Features
Aug 1, 2025Month: 2025-08 | Atlas Metastore – concise monthly summary focusing on business value and technical achievements. Key features delivered: - Fetch deleted rows for Refresh task queries to improve data consistency. (Commit: 509b02825684e0a8cfc9889425f96bc808d04f90) - Add tests to increase coverage for tasks and flows. (Commit: af2c59e7f12a062601be239bf72eef9b8f458646) - Task schema warning message to improve user feedback and validation messages. (Commit: 6889a924db56921d735b72b89ecd7e2a650b5266) - Impacted vertices caching back and related traversal performance improvements. (Commits: 1bc377865933b199ed7e9aa46a27be6947b45f59; 2e77a36fadddc494799ef355a20671ed9941721e) - Executor service refactor for TraverseImpactedVerticesByLevelV2 to enhance maintainability and performance. (Commit: 61a19fa26039a818d3d9857428a55e61f18d42f4) - Reintroduction of pagination with sorting and related refactoring for better data navigation. (Commits: 72a8fd6428e0eebcd66ea7ea09582371d439bf01; d6fbf1ff26674b14efff485f27f08a49ef2894a4; 21d545b7025d79585738fdda4cdc44bf822901fe) Major bugs fixed: - NPE handling and null checks in Tasks to prevent crashes during task execution and related queries. (Commits: a78bd9dcbf50c1e0564aa1978ece8fd412fe6001; 4257da400ea75f82025f87f067898c0c04f397e1; efef695ffa981908cb7ac75ef3175a3057df7312; c503e7443c9061376cdbcaadf67c48a7d930bc58) - Fix class text updation on v1 flow via setClassifications API. (Commit: c3c4cef41a228ec9c02767d453f038de0c542a05) - Increase sleep time to stabilize timing; address race condition issues. (Commit: e7ac05abcd59b6ee293d56e2c43ab91840b8de87) - Remove the 30s Datastax driver timeout to align with updated expectations. (Commit: 04f1c8b3b564b314f2fde21ccc7bec8ffce48777) - Fix excessive JSON logs to reduce verbosity. (Commit: 78af499b83f95aef8b47b29e21974a99ee45c39e) - Cyclic traversal detection and fixes to prevent infinite loops. (Commit: d54fb29797e2aea279c444261b88157b039133bc) - Stabilize query handling and mitigate Cassandra timeouts via scaling heavy add prop tasks and related fixes. (Commits: 59fb4386a274bec8f38068a70e383b5f3e2668c5; a8a3ff321cfebdc346619902a316d5541a10aa12; 92632eca0ebe152bca5f5cd09e749795b040a023) - Improve Redis feature flag handling when Redis is unavailable. (Commit: c3190f046293f36f6437b793f14c8144abbc01b1) - Miscellaneous code quality fixes including indentation, refactorings, and removal of redundant code. (Multiple commits) - Added retries with exponential backoff for transient failures and enhanced Elasticsearch retry robustness. (Commits: a352e9409bab94655ba3c615a20265ac428055bc; b85b2a7502da74c2d1c1018600183ad380458d16; cc72e04ca6728c01be96c422091844a5ba1cccf6) - Commons Lang3 dependency upgrade to benefit from fixes/improvements. (Commit: 675887e2093ba09d75d2650763f3213eebf22289) - Removed Task warnings attribute to reduce runtime warnings. (Commit: 871edac31dc9562ca2f9bc3f80690498c8fb80d7) Overall impact and accomplishments: - Significantly improved data integrity and task processing stability, reducing crashes and stale data in Refresh flows. - Enhanced observability with metric loggers on Add and Refresh tasks, enabling better operational insight. - Improved resilience under Redis unavailability and Cassandra timeouts through robust retry/backoff strategies and timeout adjustments. - Performance gains from vertex caching, executor refactor, and refined traversal logic, plus improved data navigation via restored pagination with sorting. - Elevated code quality and maintainability via comprehensive refactors, cleanup, tests, and dependency upgrades. Technologies/skills demonstrated: - Java backend resilience: NPE handling, null safety, error handling improvements. - Reliability patterns: exponential backoff retries, robust error handling, Redis feature flag handling. - Performance and scale: vertex caching, executor service refactor, pagination improvements, Cassandra timeout mitigation. - Observability: added metric loggers and improved logging hygiene. - Quality and maintainability: extensive refactoring, cleanup, tests, interface/API enhancements, dependency upgrades. Business value: - More stable data processing and fewer runtime crashes, enabling reliable downstream analytics and user dashboards. - Reduced operational risk via clearer user feedback in task schemas and robust retry mechanisms. - Improved developer velocity through better code structure, tests, and observability.
August 2025
48 Commits • 15 Features
Aug 1, 2025Month: 2025-08 | Atlas Metastore – concise monthly summary focusing on business value and technical achievements. Key features delivered: - Fetch deleted rows for Refresh task queries to improve data consistency. (Commit: 509b02825684e0a8cfc9889425f96bc808d04f90) - Add tests to increase coverage for tasks and flows. (Commit: af2c59e7f12a062601be239bf72eef9b8f458646) - Task schema warning message to improve user feedback and validation messages. (Commit: 6889a924db56921d735b72b89ecd7e2a650b5266) - Impacted vertices caching back and related traversal performance improvements. (Commits: 1bc377865933b199ed7e9aa46a27be6947b45f59; 2e77a36fadddc494799ef355a20671ed9941721e) - Executor service refactor for TraverseImpactedVerticesByLevelV2 to enhance maintainability and performance. (Commit: 61a19fa26039a818d3d9857428a55e61f18d42f4) - Reintroduction of pagination with sorting and related refactoring for better data navigation. (Commits: 72a8fd6428e0eebcd66ea7ea09582371d439bf01; d6fbf1ff26674b14efff485f27f08a49ef2894a4; 21d545b7025d79585738fdda4cdc44bf822901fe) Major bugs fixed: - NPE handling and null checks in Tasks to prevent crashes during task execution and related queries. (Commits: a78bd9dcbf50c1e0564aa1978ece8fd412fe6001; 4257da400ea75f82025f87f067898c0c04f397e1; efef695ffa981908cb7ac75ef3175a3057df7312; c503e7443c9061376cdbcaadf67c48a7d930bc58) - Fix class text updation on v1 flow via setClassifications API. (Commit: c3c4cef41a228ec9c02767d453f038de0c542a05) - Increase sleep time to stabilize timing; address race condition issues. (Commit: e7ac05abcd59b6ee293d56e2c43ab91840b8de87) - Remove the 30s Datastax driver timeout to align with updated expectations. (Commit: 04f1c8b3b564b314f2fde21ccc7bec8ffce48777) - Fix excessive JSON logs to reduce verbosity. (Commit: 78af499b83f95aef8b47b29e21974a99ee45c39e) - Cyclic traversal detection and fixes to prevent infinite loops. (Commit: d54fb29797e2aea279c444261b88157b039133bc) - Stabilize query handling and mitigate Cassandra timeouts via scaling heavy add prop tasks and related fixes. (Commits: 59fb4386a274bec8f38068a70e383b5f3e2668c5; a8a3ff321cfebdc346619902a316d5541a10aa12; 92632eca0ebe152bca5f5cd09e749795b040a023) - Improve Redis feature flag handling when Redis is unavailable. (Commit: c3190f046293f36f6437b793f14c8144abbc01b1) - Miscellaneous code quality fixes including indentation, refactorings, and removal of redundant code. (Multiple commits) - Added retries with exponential backoff for transient failures and enhanced Elasticsearch retry robustness. (Commits: a352e9409bab94655ba3c615a20265ac428055bc; b85b2a7502da74c2d1c1018600183ad380458d16; cc72e04ca6728c01be96c422091844a5ba1cccf6) - Commons Lang3 dependency upgrade to benefit from fixes/improvements. (Commit: 675887e2093ba09d75d2650763f3213eebf22289) - Removed Task warnings attribute to reduce runtime warnings. (Commit: 871edac31dc9562ca2f9bc3f80690498c8fb80d7) Overall impact and accomplishments: - Significantly improved data integrity and task processing stability, reducing crashes and stale data in Refresh flows. - Enhanced observability with metric loggers on Add and Refresh tasks, enabling better operational insight. - Improved resilience under Redis unavailability and Cassandra timeouts through robust retry/backoff strategies and timeout adjustments. - Performance gains from vertex caching, executor refactor, and refined traversal logic, plus improved data navigation via restored pagination with sorting. - Elevated code quality and maintainability via comprehensive refactors, cleanup, tests, and dependency upgrades. Technologies/skills demonstrated: - Java backend resilience: NPE handling, null safety, error handling improvements. - Reliability patterns: exponential backoff retries, robust error handling, Redis feature flag handling. - Performance and scale: vertex caching, executor service refactor, pagination improvements, Cassandra timeout mitigation. - Observability: added metric loggers and improved logging hygiene. - Quality and maintainability: extensive refactoring, cleanup, tests, interface/API enhancements, dependency upgrades. Business value: - More stable data processing and fewer runtime crashes, enabling reliable downstream analytics and user dashboards. - Reduced operational risk via clearer user feedback in task schemas and robust retry mechanisms. - Improved developer velocity through better code structure, tests, and observability.
July 2025
30 Commits • 11 Features
Jul 1, 2025July 2025 monthly summary for atlanhq/atlas-metastore focused on stability, scalability, and feature completeness for tag-related data management. Key features delivered include robust delete/refresh workflows for tag flows (covering hard/soft deletes, task failures, and added source_id parameter), batched delete functionality with adjustable batch size, and a Redis feature flags refactor for Tags with a refresh mechanism to maintain FF consistency. Additional reliability improvements include Cassandra replica-factor fixes and an increased driver timeout. CI and observability were strengthened with branch CI enablement and v1/v2 logging, along with enhanced pagination and general logging. Non-functional improvements encompassed FFS refresh mechanism removal/refactor and ongoing code quality work (log cleanup, static corrections, and redundancy removal).
30 Commits • 11 Features
Jul 1, 2025July 2025 monthly summary for atlanhq/atlas-metastore focused on stability, scalability, and feature completeness for tag-related data management. Key features delivered include robust delete/refresh workflows for tag flows (covering hard/soft deletes, task failures, and added source_id parameter), batched delete functionality with adjustable batch size, and a Redis feature flags refactor for Tags with a refresh mechanism to maintain FF consistency. Additional reliability improvements include Cassandra replica-factor fixes and an increased driver timeout. CI and observability were strengthened with branch CI enablement and v1/v2 logging, along with enhanced pagination and general logging. Non-functional improvements encompassed FFS refresh mechanism removal/refactor and ongoing code quality work (log cleanup, static corrections, and redundancy removal).
July 2025
June 2025
20 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for atlas-metastore. Focused on delivering observability improvements, stable builds, and code quality enhancements across the repo. Key business outcomes include faster debugging, more reliable CI, and improved data access layer visibility.
June 2025
20 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for atlas-metastore. Focused on delivering observability improvements, stable builds, and code quality enhancements across the repo. Key business outcomes include faster debugging, more reliable CI, and improved data access layer visibility.
May 2025
26 Commits • 11 Features
May 1, 2025May 2025: Delivered core feature work, reliability improvements, and workflow enhancements for atlas-metastore, enabling new graph-based commits, improved performance, robust notifications, and stronger tagging capabilities while stabilizing test environments and developer workflows.
26 Commits • 11 Features
May 1, 2025May 2025: Delivered core feature work, reliability improvements, and workflow enhancements for atlas-metastore, enabling new graph-based commits, improved performance, robust notifications, and stronger tagging capabilities while stabilizing test environments and developer workflows.
May 2025
April 2025
25 Commits • 9 Features
Apr 1, 2025April 2025 performance snapshot for atlanhq/atlas-metastore. Focused on scaling data access, reliability, and operational safety. Key features delivered include a Cassandra DAO layer for Tags enabling scalable tag storage and fast lookups; async notifications with batching to improve throughput and reduce latency; ES post-processing, Cassandra batch deletes, and setClassifications API support to enhance indexing and API coverage; and rollout of rollback capabilities (EMC state and insert/update) for safer operations. Major bugs fixed include AtlasClassification issues, autowiring for EntityGraphRetriever, query bindings, Cassandra replication factor RF, and targeted error handling improvements. Overall impact: faster tag lookups, safer migrations, more reliable notifications and indexing pipelines, and improved maintainability. Technologies/skills demonstrated: Cassandra DAO development, asynchronous processing, batch operations, error handling, code cleanup, test scaffolding, and configuration/reflection fixes.
April 2025
25 Commits • 9 Features
Apr 1, 2025April 2025 performance snapshot for atlanhq/atlas-metastore. Focused on scaling data access, reliability, and operational safety. Key features delivered include a Cassandra DAO layer for Tags enabling scalable tag storage and fast lookups; async notifications with batching to improve throughput and reduce latency; ES post-processing, Cassandra batch deletes, and setClassifications API support to enhance indexing and API coverage; and rollout of rollback capabilities (EMC state and insert/update) for safer operations. Major bugs fixed include AtlasClassification issues, autowiring for EntityGraphRetriever, query bindings, Cassandra replication factor RF, and targeted error handling improvements. Overall impact: faster tag lookups, safer migrations, more reliable notifications and indexing pipelines, and improved maintainability. Technologies/skills demonstrated: Cassandra DAO development, asynchronous processing, batch operations, error handling, code cleanup, test scaffolding, and configuration/reflection fixes.
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for atlas-metastore: Implemented performance instrumentation for EntityLineageService and optimized lineage traversal using GraphHelper.getActiveEdges, delivering improved observability, accuracy, and performance for lineage queries.
4 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for atlas-metastore: Implemented performance instrumentation for EntityLineageService and optimized lineage traversal using GraphHelper.getActiveEdges, delivering improved observability, accuracy, and performance for lineage queries.
December 2024
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Quality Metrics
Correctness84.4%
Maintainability86.2%
Architecture78.2%
Performance75.2%
AI Usage20.6%
Skills & Technologies
Programming Languages
CqlGitGroovyJavaKotlinMarkdownSQLYAML
Technical Skills
API DesignAPI DevelopmentAsynchronous ProgrammingBackend DevelopmentBug FixingCI/CDCachingCassandraCode CleanupCode FormattingCode InstrumentationCode RefactoringConcurrencyConcurrency ManagementConfiguration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline