Over thirteen months, Dlv engineered core features and reliability improvements for the opensearch-project/data-prepper repository, focusing on secure, scalable data pipeline integrations. Dlv delivered cross-account DynamoDB Streams access, cross-region S3 reads, and nightly Maven publishing, while hardening the platform with dependency upgrades and CVE remediations. Using Java, Gradle, and AWS SDK, Dlv refactored build and test automation, introduced plugin experimentation controls, and enhanced end-to-end testing. The work included automated versioning, improved release governance, and expanded integration test coverage. Dlv’s contributions addressed both backend development and DevOps, resulting in a more stable, maintainable, and secure data processing platform.
October 2025: Delivered core features and reliability improvements for Data Prepper, with a focus on security, testing, and versioning. Key features include STS header overrides for the AWS plugin extension configuration and enhanced test coverage for NDJSON output. Reliability improvements include aggregate processor logging at the error level and explicit SQS error reporting. ByteCount enhancements (Comparable and min/max constraints) simplify validations and improve resource usage. Platform stability enhancements include upgrading to JDK 17.0.16 and automating Data Prepper version derivation from Gradle, reducing drift across builds. These changes collectively improve security defaults, test reliability, and deployment consistency, delivering measurable business value through more predictable builds, safer TLS defaults, and better observability.
October 2025: Delivered core features and reliability improvements for Data Prepper, with a focus on security, testing, and versioning. Key features include STS header overrides for the AWS plugin extension configuration and enhanced test coverage for NDJSON output. Reliability improvements include aggregate processor logging at the error level and explicit SQS error reporting. ByteCount enhancements (Comparable and min/max constraints) simplify validations and improve resource usage. Platform stability enhancements include upgrading to JDK 17.0.16 and automating Data Prepper version derivation from Gradle, reducing drift across builds. These changes collectively improve security defaults, test reliability, and deployment consistency, delivering measurable business value through more predictable builds, safer TLS defaults, and better observability.
Monthly performance and reliability work for Sep 2025 focusing on security hardening, test automation, release governance, and cross-region data access. Implemented cross-region reads for S3 source, updated performance testing tooling, reinforced gatekeeping with smoke-tests before release, and applied critical security patches to Netty and commons-lang to address CVEs.
Monthly performance and reliability work for Sep 2025 focusing on security hardening, test automation, release governance, and cross-region data access. Implemented cross-region reads for S3 source, updated performance testing tooling, reinforced gatekeeping with smoke-tests before release, and applied critical security patches to Netty and commons-lang to address CVEs.
August 2025 metrics and outcomes: Security hardening, release readiness, and performance benchmarking for Data Prepper. Key work delivered across the opensearch-project/data-prepper repository includes critical dependency patches, official release notes for version 2.12.1, a CI/CD upgrade to stabilize Maven publication, and a new benchmarking framework for Data Prepper Expressions.
August 2025 metrics and outcomes: Security hardening, release readiness, and performance benchmarking for Data Prepper. Key work delivered across the opensearch-project/data-prepper repository includes critical dependency patches, official release notes for version 2.12.1, a CI/CD upgrade to stabilize Maven publication, and a new benchmarking framework for Data Prepper Expressions.
July 2025 monthly summary for opensearch-project/data-prepper: - Key features delivered: • Nightly Maven SNAPSHOT publishing workflow implemented to publish nightly SNAPSHOT artifacts to Maven Central, enabling rapid access to latest development builds. Commit 9f4ca267ede0264d091c25814fe1e4c672bc716c. • EventBuilder integration into the newline codec to ensure correct construction of log events, with clarified test naming. Commit b55e8c90912e3f6124840689f242c961c60dfa2e. • End-to-end tests framework improvements and smoke-test cleanup, including longer timeouts and removal of obsolete Docker-based tests in favor of end-to-end tests. Commits c6f072aa7ff695cdafd6994e0cb959da401c2bb3 and 74db304dd16c6501c8b8885d8a84ad838885577a. • Security hardening through dependency upgrades addressing CVEs (Parquet, commons-beanutils, json-smart, Netty, Kafka). Commit c8f66fa4fd1ed67fdbbeb230daf948e76207cf10. • Plugin test framework for Data Prepper established with annotations and a base class for standardized plugin testing (initially applied to the grok processor). Commit 49c61e642ebe23876150cd402283c949f99181a0. - Major bugs fixed: • Data Prepper core: fixed regression where @SingleThread annotated processors were not executing correctly within pipelines. Commit 53f16d786616a19d52d6b998d18d93f3008508f8. • Safe handling of null in S3 event parsing to prevent NullPointerException when ObjectMapper.treeToValue returns null for empty strings. Commit 3662c25ef4fb4cf69ad9ae2feb2f7553e8c16d3c. - Overall impact and accomplishments: The month delivered measurable improvements to build reliability, testing coverage, and security posture, accelerating feedback cycles for developers and operators, while reducing risk from dependencies and stabilizing core processing pipelines. - Technologies/skills demonstrated: Java, Maven, GitHub Actions (Nightly SNAPSHOT workflow), log processing and EventBuilder usage, end-to-end testing strategies, plugin testing frameworks, null-safety in parsing, and CVE remediation practices.
July 2025 monthly summary for opensearch-project/data-prepper: - Key features delivered: • Nightly Maven SNAPSHOT publishing workflow implemented to publish nightly SNAPSHOT artifacts to Maven Central, enabling rapid access to latest development builds. Commit 9f4ca267ede0264d091c25814fe1e4c672bc716c. • EventBuilder integration into the newline codec to ensure correct construction of log events, with clarified test naming. Commit b55e8c90912e3f6124840689f242c961c60dfa2e. • End-to-end tests framework improvements and smoke-test cleanup, including longer timeouts and removal of obsolete Docker-based tests in favor of end-to-end tests. Commits c6f072aa7ff695cdafd6994e0cb959da401c2bb3 and 74db304dd16c6501c8b8885d8a84ad838885577a. • Security hardening through dependency upgrades addressing CVEs (Parquet, commons-beanutils, json-smart, Netty, Kafka). Commit c8f66fa4fd1ed67fdbbeb230daf948e76207cf10. • Plugin test framework for Data Prepper established with annotations and a base class for standardized plugin testing (initially applied to the grok processor). Commit 49c61e642ebe23876150cd402283c949f99181a0. - Major bugs fixed: • Data Prepper core: fixed regression where @SingleThread annotated processors were not executing correctly within pipelines. Commit 53f16d786616a19d52d6b998d18d93f3008508f8. • Safe handling of null in S3 event parsing to prevent NullPointerException when ObjectMapper.treeToValue returns null for empty strings. Commit 3662c25ef4fb4cf69ad9ae2feb2f7553e8c16d3c. - Overall impact and accomplishments: The month delivered measurable improvements to build reliability, testing coverage, and security posture, accelerating feedback cycles for developers and operators, while reducing risk from dependencies and stabilizing core processing pipelines. - Technologies/skills demonstrated: Java, Maven, GitHub Actions (Nightly SNAPSHOT workflow), log processing and EventBuilder usage, end-to-end testing strategies, plugin testing frameworks, null-safety in parsing, and CVE remediation practices.
June 2025 focused on delivering release-ready enhancements for Data Prepper, strengthening end-to-end testing, and improving the release pipeline. Key outcomes include 2.12.0 release documentation updates with bot-filtered acknowledgments, a major test-project restructuring for consistent testing across Docker images, improved Maven/Gradle publishing workflows, and a hardened CI/CD release infrastructure with multi-account access and a version bump to 2.13.
June 2025 focused on delivering release-ready enhancements for Data Prepper, strengthening end-to-end testing, and improving the release pipeline. Key outcomes include 2.12.0 release documentation updates with bot-filtered acknowledgments, a major test-project restructuring for consistent testing across Docker images, improved Maven/Gradle publishing workflows, and a hardened CI/CD release infrastructure with multi-account access and a version bump to 2.13.
May 2025 monthly summary for opensearch-project/data-prepper. Focused on hardening configurability, reliability, and security across the repository. Delivered three key outcomes: fine-grained activation of experimental plugins, improved test reliability for TruncateProcessorConfigTests, and an Avro dependency upgrade addressing CVE-2024-47561. These changes improve safety, maintainability, and security while enabling safer experimentation and faster incident response.
May 2025 monthly summary for opensearch-project/data-prepper. Focused on hardening configurability, reliability, and security across the repository. Delivered three key outcomes: fine-grained activation of experimental plugins, improved test reliability for TruncateProcessorConfigTests, and an Avro dependency upgrade addressing CVE-2024-47561. These changes improve safety, maintainability, and security while enabling safer experimentation and faster incident response.
Month: 2025-04 — Focused on security hardening, expanded data integration capabilities, improve release transparency, and strengthen code maintainability in opensearch-project/data-prepper. Delivered tangible business value by securing data pipelines, enabling broader data sources, and improving release workflows and test coverage.
Month: 2025-04 — Focused on security hardening, expanded data integration capabilities, improve release transparency, and strengthen code maintainability in opensearch-project/data-prepper. Delivered tangible business value by securing data pipelines, enabling broader data sources, and improving release workflows and test coverage.
March 2025 — Delivered stability and performance enhancements for opensearch-project/data-prepper. Implemented a critical bug fix to Processor Retrieval Correctness that prevents duplicate processor invocations, introduced memory- and performance-oriented optimizations for the AWS Lambda processor, aligned module dependencies to ensure consistent runtime behavior, and packaged a standalone uber-jar for the performance-test suite to streamline deployments and CI runs. These changes reduce flaky tests, decrease memory pressure, and accelerate performance testing and release readiness.
March 2025 — Delivered stability and performance enhancements for opensearch-project/data-prepper. Implemented a critical bug fix to Processor Retrieval Correctness that prevents duplicate processor invocations, introduced memory- and performance-oriented optimizations for the AWS Lambda processor, aligned module dependencies to ensure consistent runtime behavior, and packaged a standalone uber-jar for the performance-test suite to streamline deployments and CI runs. These changes reduce flaky tests, decrease memory pressure, and accelerate performance testing and release readiness.
February 2025: Focused on stability, deployment reliability, and governance hygiene for the opensearch-project/data-prepper repo. No explicit major bug fixes were recorded this month; instead, improvements targeted runtime stability and documentation governance.
February 2025: Focused on stability, deployment reliability, and governance hygiene for the opensearch-project/data-prepper repo. No explicit major bug fixes were recorded this month; instead, improvements targeted runtime stability and documentation governance.
January 2025 performance summary for opensearch-project/data-prepper focused on delivering cross-account data access, enhancing event data modeling, and enabling safe plugin experimentation. The month emphasizes business value through AWS-aligned DynamoDB Streams integration, improved event handling capabilities, and a structured approach to plugin experimentation with loading guards and explicit configuration gating.
January 2025 performance summary for opensearch-project/data-prepper focused on delivering cross-account data access, enhancing event data modeling, and enabling safe plugin experimentation. The month emphasizes business value through AWS-aligned DynamoDB Streams integration, improved event handling capabilities, and a structured approach to plugin experimentation with loading guards and explicit configuration gating.
December 2024 summary focused on security transparency and release-note quality for Data Prepper. Primary deliverable was documenting the CVE linkage for the otel_logs_source security fix in Data Prepper 2.10.2, improving auditability and customer trust. No major code changes this month; emphasis on documentation, release-process rigor, and vulnerability disclosure alignment.
December 2024 summary focused on security transparency and release-note quality for Data Prepper. Primary deliverable was documenting the CVE linkage for the otel_logs_source security fix in Data Prepper 2.10.2, improving auditability and customer trust. No major code changes this month; emphasis on documentation, release-process rigor, and vulnerability disclosure alignment.
November 2024 performance summary for opensearch-project/data-prepper: Delivered targeted feature enhancement to processor configuration with practical examples and implemented a fix to the Otel Logs Source authentication flow to support getHttpAuthenticationService().
November 2024 performance summary for opensearch-project/data-prepper: Delivered targeted feature enhancement to processor configuration with practical examples and implemented a fix to the Otel Logs Source authentication flow to support getHttpAuthenticationService().
OpenSearch Data Prepper branding update completed for 2024-10. Rebranded from 'Data Prepper' to 'OpenSearch Data Prepper' across documentation assets to ensure branding consistency, improve user recognition, and align with OpenSearch guidelines. The update was implemented in a single commit: c5c2fa63c86faca0144b4ef00427df23d6bdf3ae (Renames the project to OpenSearch Data Prepper. (#5128)).
OpenSearch Data Prepper branding update completed for 2024-10. Rebranded from 'Data Prepper' to 'OpenSearch Data Prepper' across documentation assets to ensure branding consistency, improve user recognition, and align with OpenSearch guidelines. The update was implemented in a single commit: c5c2fa63c86faca0144b4ef00427df23d6bdf3ae (Renames the project to OpenSearch Data Prepper. (#5128)).
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