DataDog/datadog-agent
Dec 2024 – Jul 2026
15 Months active
Languages Used
GoYAMLPythonShellTOMLGitMakefileBash
Technical Skills
Configuration ManagementGo DevelopmentMetrics CollectionSystem MonitoringCode Ownership ManagementPackage Management
José Manuel Almaza Ramiro
PROFILE
José Manuel Almaza Ramiro
Over 15 months, contributed to DataDog/datadog-agent by building and enhancing core observability and process management features across Linux and Windows. Developed robust disk monitoring and per-core CPU metrics, aligning Go and Python implementations for consistency and reliability. Led the design and rollout of the dd-procmgrd process manager, introducing cross-platform orchestration, gRPC APIs, and CLI tooling using Rust and Go. Improved CI stability, test automation, and packaging workflows, including MSI and systemd integration. Focused on configuration management, dependency injection, and telemetry, ensuring scalable, maintainable agent deployments. Demonstrated depth in backend development, cross-platform systems programming, and DevOps automation.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
88Total
Bugs
9
Commits
88
Features
25
Lines of code
35,810
Activity Months15
Your Network
1305 peopleWork History
July 2026
6 Commits • 2 Features
Jul 1, 2026July 2026: DataDog/datadog-agent — Windows dd-procmgr enhancements delivering supervised Agent Data Plane and Private Action Runner, aligned DDOT process management, and improved fleet policy handling. Resulted in more reliable Windows installs, easier upgrades/rollbacks, and unified fleet policy resolution across platforms.
6 Commits • 2 Features
Jul 1, 2026July 2026: DataDog/datadog-agent — Windows dd-procmgr enhancements delivering supervised Agent Data Plane and Private Action Runner, aligned DDOT process management, and improved fleet policy handling. Resulted in more reliable Windows installs, easier upgrades/rollbacks, and unified fleet policy resolution across platforms.
July 2026
June 2026
11 Commits • 4 Features
Jun 1, 2026June 2026 monthly summary focusing on cross-platform Process Manager enablement, Windows reliability, telemetry, and CI improvements. Key business value delivered includes configuration parity across OSes, reduced operational risk for Windows service management, improved observability into procmgr supervision, and more reliable end-to-end testing for procmgr-related changes.
June 2026
11 Commits • 4 Features
Jun 1, 2026June 2026 monthly summary focusing on cross-platform Process Manager enablement, Windows reliability, telemetry, and CI improvements. Key business value delivered includes configuration parity across OSes, reduced operational risk for Windows service management, improved observability into procmgr supervision, and more reliable end-to-end testing for procmgr-related changes.
May 2026
2 Commits • 1 Features
May 1, 2026May 2026 monthly summary for DataDog/datadog-agent: Delivered a modernization of DDOT extension management and integrated Linux DDOT with the process manager (dd-procmgrd). Implemented unit-renaming for the process manager, added install-time configuration and cleanup, and ensured cleanup of obsolete units during upgrades. Enabled DDOT to be supervised by the process manager by default by creating processes.d/datadog-agent-ddot.yaml during install. Expanded E2E validation and updated tests to reflect new unit names and procmgr integration; release notes updated accordingly. No functional changes to dd-procmgrd supervision, only naming, config, and installer behavior to reduce upgrade risk.
2 Commits • 1 Features
May 1, 2026May 2026 monthly summary for DataDog/datadog-agent: Delivered a modernization of DDOT extension management and integrated Linux DDOT with the process manager (dd-procmgrd). Implemented unit-renaming for the process manager, added install-time configuration and cleanup, and ensured cleanup of obsolete units during upgrades. Enabled DDOT to be supervised by the process manager by default by creating processes.d/datadog-agent-ddot.yaml during install. Expanded E2E validation and updated tests to reflect new unit names and procmgr integration; release notes updated accordingly. No functional changes to dd-procmgrd supervision, only naming, config, and installer behavior to reduce upgrade risk.
May 2026
April 2026
32 Commits • 8 Features
Apr 1, 2026April 2026 was focused on enabling cross-platform support for the procmgr subsystem, strengthening IPC transport, expanding the Windows port, and raising test/metrics quality. Key work spanned a platform- and transport-driven refactor, Windows packaging, and cross-platform test infra, all with an eye toward business value (reliability, unified APIs, and broader deployment options). Key deliverables: - Platform Abstraction Layer for procmgr: Introduced a unified platform module with Unix impls and Windows stubs, exposing APIs such as configure_command, send_graceful_stop, send_force_kill, last_signal, and shutdown_signal. This lays the groundwork for a true cross-platform daemon while enabling early validation via cargo checks/tests. (Commits: 0d4f770a..., 39c1a0c..., ed94233d...) - Transport Abstraction Layer and cross-platform gRPC: Extracted a transport layer to encapsulate IPC (Unix Domain Sockets on Unix; Named Pipes on Windows) and migrated grpc/server.rs/server logic to call transport APIs. This unifies server/client code paths and supports Windows with minimal churn. (Commits: 7645ef37..., b51a6fdf..., fa6caa8c...) - Windows platform module, transport, and installer enhancements: Implemented real Win32 process-management calls, added a Windows transport (Named Pipe) backend, and wired packaging so Windows installers include dd-procmgr-service binary. Bazel and installer wiring broaden platform coverage (Windows); groundwork for future end-to-end Windows functionality. (Commits: b81c3e5a..., 03923027..., 48038ecb..., 84f33007...) - Cross-platform Test and E2E Helpers: Ported test helpers and E2E suites to support Windows, introducing test_helpers, platform-config abstractions, and cfg-based gating to keep tests green on Windows while preserving Unix semantics. (Commits: ee222ffd..., 8d52ccbb..., 2beec758...) - Disk Metrics improvements: Distinguished real disks from pseudo-filesystems with a new is_physical_storage tag and physical metrics (system.disk.physical_total/used/free/utilized/in_use), enabled by collect_physical_metrics/config. This improves fleet observability without breaking defaults. (Commit: 3e0a1a6b...) Overall, these efforts increased cross-platform consistency, improved observability, and accelerated Windows readiness while maintaining backward compatibility where appropriate.
April 2026
32 Commits • 8 Features
Apr 1, 2026April 2026 was focused on enabling cross-platform support for the procmgr subsystem, strengthening IPC transport, expanding the Windows port, and raising test/metrics quality. Key work spanned a platform- and transport-driven refactor, Windows packaging, and cross-platform test infra, all with an eye toward business value (reliability, unified APIs, and broader deployment options). Key deliverables: - Platform Abstraction Layer for procmgr: Introduced a unified platform module with Unix impls and Windows stubs, exposing APIs such as configure_command, send_graceful_stop, send_force_kill, last_signal, and shutdown_signal. This lays the groundwork for a true cross-platform daemon while enabling early validation via cargo checks/tests. (Commits: 0d4f770a..., 39c1a0c..., ed94233d...) - Transport Abstraction Layer and cross-platform gRPC: Extracted a transport layer to encapsulate IPC (Unix Domain Sockets on Unix; Named Pipes on Windows) and migrated grpc/server.rs/server logic to call transport APIs. This unifies server/client code paths and supports Windows with minimal churn. (Commits: 7645ef37..., b51a6fdf..., fa6caa8c...) - Windows platform module, transport, and installer enhancements: Implemented real Win32 process-management calls, added a Windows transport (Named Pipe) backend, and wired packaging so Windows installers include dd-procmgr-service binary. Bazel and installer wiring broaden platform coverage (Windows); groundwork for future end-to-end Windows functionality. (Commits: b81c3e5a..., 03923027..., 48038ecb..., 84f33007...) - Cross-platform Test and E2E Helpers: Ported test helpers and E2E suites to support Windows, introducing test_helpers, platform-config abstractions, and cfg-based gating to keep tests green on Windows while preserving Unix semantics. (Commits: ee222ffd..., 8d52ccbb..., 2beec758...) - Disk Metrics improvements: Distinguished real disks from pseudo-filesystems with a new is_physical_storage tag and physical metrics (system.disk.physical_total/used/free/utilized/in_use), enabled by collect_physical_metrics/config. This improves fleet observability without breaking defaults. (Commit: 3e0a1a6b...) Overall, these efforts increased cross-platform consistency, improved observability, and accelerated Windows readiness while maintaining backward compatibility where appropriate.
March 2026
10 Commits • 1 Features
Mar 1, 2026March 2026 performance summary for DataDog/datadog-agent (dd-procmgrd and related components). Delivered a major overhaul of dd-procmgrd enabling multi-process orchestration, startup ordering, dependency management, a gRPC API for lifecycle control, and a new operator CLI with end-to-end tests. Established a gRPC control plane with read-only RPCs (List, Describe, GetStatus) and write RPCs (Create, Start, Stop, ReloadConfig) over a Unix socket, plus a new dd-procmgr CLI binary to interact with the daemon. Parallel bug fixes improved reliability: HTTP server error visibility and robust disk checks with fallbacks and timeouts, plus race-condition fixes in partition enumeration. These changes improve startup reliability, observability, and operator ergonomics, enabling safer, more scalable agent management and enabling external tooling integration. Technologies: Rust, tonic gRPC, protobuf, UUID-based process addressing, topological sort, concurrency primitives, comprehensive testing (unit/integration/e2e), and Bazel-based builds.
10 Commits • 1 Features
Mar 1, 2026March 2026 performance summary for DataDog/datadog-agent (dd-procmgrd and related components). Delivered a major overhaul of dd-procmgrd enabling multi-process orchestration, startup ordering, dependency management, a gRPC API for lifecycle control, and a new operator CLI with end-to-end tests. Established a gRPC control plane with read-only RPCs (List, Describe, GetStatus) and write RPCs (Create, Start, Stop, ReloadConfig) over a Unix socket, plus a new dd-procmgr CLI binary to interact with the daemon. Parallel bug fixes improved reliability: HTTP server error visibility and robust disk checks with fallbacks and timeouts, plus race-condition fixes in partition enumeration. These changes improve startup reliability, observability, and operator ergonomics, enabling safer, more scalable agent management and enabling external tooling integration. Technologies: Rust, tonic gRPC, protobuf, UUID-based process addressing, topological sort, concurrency primitives, comprehensive testing (unit/integration/e2e), and Bazel-based builds.
March 2026
February 2026
5 Commits • 1 Features
Feb 1, 2026February 2026 performance summary for DataDog/datadog-agent focusing on reliability improvements in diskv2 metrics and laying the groundwork for robust process supervision via dd-procmgrd. Deliveries prioritized business value (reliable metrics, safer per-instance configuration, and scalable agent management) and demonstrated cross-language engineering excellence (Go, Rust, Bazel, CI/CD,/systemd). Key features delivered: - Diskv2 Metrics Reliability and Instance Isolation Bug Fixes: Make IO counter collection non-fatal to preserve partition metrics; log warnings instead of errors to avoid metric loss; assign unique IDs with isolated senders per instance to prevent cross-instance tag leakage. Related commits include Fix(diskv2) non-fatal IO counters (#46480) and related messaging. - Diskv2: prevent custom tags from leaking between check instances: Add BuildID to ensure per-instance IDs and isolated senders; tests and mocks updated to reflect per-instance tag handling; regression tests for multiple disk instances with different tags getting unique IDs. Related commits include Fix(diskv2): prevent custom tags from leaking (#46629). - Datadog process manager daemon (dd-procmgrd): Skeleton, YAML config parsing, graceful shutdown, and supervised lifecycle: Minimal Rust daemon scaffold with CI/build pipeline, packaging, systemd integration, and configuration plumbing to support future process supervision work. Related PRs include skeleton daemon (#46529) and config/spawn/shutdown (#46672). - Restart policies with backoff and burst limiting: Added restart policies (always/on-failure/on-success/never), exponential backoff, burst limiting, and a state machine to robustly manage child processes; refactoring into modular components for configuration, process management, and shutdown. Related PR (#46880). Major bugs fixed: - Diskv2: IO counter failures no longer block metric reporting; partition metrics are preserved and reported even when IO counters fail (Windows-specific IOCounters error handling improved in tests and code paths). - Diskv2: custom tag leakage resolved by per-instance IDs and isolated senders, eliminating cross-instance metric tag bleed. Overall impact and accomplishments: - Increased reliability and completeness of metrics in diskv2 checks, reducing customer-visible metric gaps during IO counter outages. - Improved data quality through strict per-instance tag isolation, enabling more accurate dashboards and alerting. - Established a lifecycle and packaging foundation for a Rust-based process manager (dd-procmgrd), enabling safer process supervision and smoother future feature delivery. - Strengthened engineering practices with expanded unit/integration tests, test refactoring, and CI improvements. Technologies/skills demonstrated: - Go and Rust development, Bazel-based build and packaging, systemd integration, YAML/config parsing, process supervision patterns, exponential backoff and backoff tracking, state machines, unit/integration testing, and cross-repo collaboration. Business value delivered: - Higher metric reliability and data integrity for key system checks, directly supporting SRE confidence and customer dashboards. - Scalable agent management groundwork to reduce manual ops and risk as deployments scale across environments.
February 2026
5 Commits • 1 Features
Feb 1, 2026February 2026 performance summary for DataDog/datadog-agent focusing on reliability improvements in diskv2 metrics and laying the groundwork for robust process supervision via dd-procmgrd. Deliveries prioritized business value (reliable metrics, safer per-instance configuration, and scalable agent management) and demonstrated cross-language engineering excellence (Go, Rust, Bazel, CI/CD,/systemd). Key features delivered: - Diskv2 Metrics Reliability and Instance Isolation Bug Fixes: Make IO counter collection non-fatal to preserve partition metrics; log warnings instead of errors to avoid metric loss; assign unique IDs with isolated senders per instance to prevent cross-instance tag leakage. Related commits include Fix(diskv2) non-fatal IO counters (#46480) and related messaging. - Diskv2: prevent custom tags from leaking between check instances: Add BuildID to ensure per-instance IDs and isolated senders; tests and mocks updated to reflect per-instance tag handling; regression tests for multiple disk instances with different tags getting unique IDs. Related commits include Fix(diskv2): prevent custom tags from leaking (#46629). - Datadog process manager daemon (dd-procmgrd): Skeleton, YAML config parsing, graceful shutdown, and supervised lifecycle: Minimal Rust daemon scaffold with CI/build pipeline, packaging, systemd integration, and configuration plumbing to support future process supervision work. Related PRs include skeleton daemon (#46529) and config/spawn/shutdown (#46672). - Restart policies with backoff and burst limiting: Added restart policies (always/on-failure/on-success/never), exponential backoff, burst limiting, and a state machine to robustly manage child processes; refactoring into modular components for configuration, process management, and shutdown. Related PR (#46880). Major bugs fixed: - Diskv2: IO counter failures no longer block metric reporting; partition metrics are preserved and reported even when IO counters fail (Windows-specific IOCounters error handling improved in tests and code paths). - Diskv2: custom tag leakage resolved by per-instance IDs and isolated senders, eliminating cross-instance metric tag bleed. Overall impact and accomplishments: - Increased reliability and completeness of metrics in diskv2 checks, reducing customer-visible metric gaps during IO counter outages. - Improved data quality through strict per-instance tag isolation, enabling more accurate dashboards and alerting. - Established a lifecycle and packaging foundation for a Rust-based process manager (dd-procmgrd), enabling safer process supervision and smoother future feature delivery. - Strengthened engineering practices with expanded unit/integration tests, test refactoring, and CI improvements. Technologies/skills demonstrated: - Go and Rust development, Bazel-based build and packaging, systemd integration, YAML/config parsing, process supervision patterns, exponential backoff and backoff tracking, state machines, unit/integration testing, and cross-repo collaboration. Business value delivered: - Higher metric reliability and data integrity for key system checks, directly supporting SRE confidence and customer dashboards. - Scalable agent management groundwork to reduce manual ops and risk as deployments scale across environments.
December 2025
5 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for DataDog/datadog-agent. Delivered robust disk metric collection by hardening the Go disk check and aligning it with Python behavior, plus a targeted refactor of the diskv2 check with expanded test coverage. These changes preserve dashboards, reduce false negatives, and improve cross-language consistency for Python-Go migrations.
5 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for DataDog/datadog-agent. Delivered robust disk metric collection by hardening the Go disk check and aligning it with Python behavior, plus a targeted refactor of the diskv2 check with expanded test coverage. These changes preserve dashboards, reduce false negatives, and improve cross-language consistency for Python-Go migrations.
December 2025
July 2025
1 Commits
Jul 1, 2025Monthly summary for July 2025 (2025-07) focusing on the DataDog/datadog-agent repository. The work delivered centers on stabilizing Windows end-to-end (E2E) tests by refining metric comparisons used in disk checks, reducing flaky failures and improving overall test reliability.
July 2025
1 Commits
Jul 1, 2025Monthly summary for July 2025 (2025-07) focusing on the DataDog/datadog-agent repository. The work delivered centers on stabilizing Windows end-to-end (E2E) tests by refining metric comparisons used in disk checks, reducing flaky failures and improving overall test reliability.
June 2025
5 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for DataDog/datadog-agent focusing on disk metrics accuracy, Windows test stability, and robust device-number parsing.
5 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for DataDog/datadog-agent focusing on disk metrics accuracy, Windows test stability, and robust device-number parsing.
June 2025
May 2025
3 Commits • 1 Features
May 1, 2025Summary for 2025-05: Delivered stability and configurability enhancements to the disk test suite in DataDog/datadog-agent. Key improvements include removal of flaky marks, refactoring of TestCheckDisk runtimes, and a race condition fix, plus metrics configurability and dependency injection for disk operations. Result: more deterministic tests, more reliable CI, and faster feedback for releases.
May 2025
3 Commits • 1 Features
May 1, 2025Summary for 2025-05: Delivered stability and configurability enhancements to the disk test suite in DataDog/datadog-agent. Key improvements include removal of flaky marks, refactoring of TestCheckDisk runtimes, and a race condition fix, plus metrics configurability and dependency injection for disk operations. Result: more deterministic tests, more reliable CI, and faster feedback for releases.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 - DataDog/datadog-agent: Delivered Go-based Disk Check (Diskv2) parity with the Python disk check, enablement via the with_diskv2_check configuration option, expanding platform coverage and potential performance. Also improved disk test suite reliability by fixing a race condition in the Go disk check test and marking the Windows disk test as flaky to stabilize CI. These changes enhance cross-language consistency, robustness of disk monitoring, and faster feedback in CI pipelines.
3 Commits • 1 Features
Apr 1, 2025April 2025 - DataDog/datadog-agent: Delivered Go-based Disk Check (Diskv2) parity with the Python disk check, enablement via the with_diskv2_check configuration option, expanding platform coverage and potential performance. Also improved disk test suite reliability by fixing a race condition in the Go disk check test and marking the Windows disk test as flaky to stabilize CI. These changes enhance cross-language consistency, robustness of disk monitoring, and faster feedback in CI pipelines.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for DataDog/datadog-agent: Delivered deterministic file-path handling improvements and streamlined the copyright linting process to reduce false positives and CI flakiness. Implemented a repo-root prepend in the git utility for staged paths and simplified the copyright linter by removing redundant exclusion logic and using direct glob patterns. Key change includes the commit that enforces path exclusions: Exclude files by path always (#35538). Technologies demonstrated include Go, Git tooling, glob patterns, and linting/CI enhancements, translating to clearer maintenance and accelerated CI feedback.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for DataDog/datadog-agent: Delivered deterministic file-path handling improvements and streamlined the copyright linting process to reduce false positives and CI flakiness. Implemented a repo-root prepend in the git utility for staged paths and simplified the copyright linter by removing redundant exclusion logic and using direct glob patterns. Key change includes the commit that enforces path exclusions: Exclude files by path always (#35538). Technologies demonstrated include Go, Git tooling, glob patterns, and linting/CI enhancements, translating to clearer maintenance and accelerated CI feedback.
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary for DataDog/datadog-agent: Focused on improving test reliability and labeling accuracy in the PersistingIntegrations test suite. Resolved an incident by removing the erroneous 'flakey' mark to prevent mislabeling and ensure only genuinely flaky tests are flagged. This change reduces CI noise and enhances overall test reporting accuracy. Implemented via commit 143cb6663be52c25a8ea1f109b56993d2a8f9c16 with message 'Remove flakey mark from PersistingIntegrations suite as the incident was solved (#33990)'.
1 Commits
Feb 1, 2025February 2025 monthly summary for DataDog/datadog-agent: Focused on improving test reliability and labeling accuracy in the PersistingIntegrations test suite. Resolved an incident by removing the erroneous 'flakey' mark to prevent mislabeling and ensure only genuinely flaky tests are flagged. This change reduces CI noise and enhances overall test reporting accuracy. Implemented via commit 143cb6663be52c25a8ea1f109b56993d2a8f9c16 with message 'Remove flakey mark from PersistingIntegrations suite as the incident was solved (#33990)'.
February 2025
January 2025
2 Commits • 1 Features
Jan 1, 2025Summary for 2025-01: Delivered the Cloud Foundry Integrations Ownership Reassignment and fixed a packaging bug for RPM-based persistent integrations. Key achievements include removing Platform Integrations from codeowners, restructuring ownership under the agent-integrations team, and improving packaging scripts and versioning logic. Impact: increased reliability of upgrades/removals, clearer ownership and faster onboarding for new contributors, and stronger packaging automation. Demonstrated skills include Python scripting, packaging tooling, code ownership governance, and cross-team collaboration.
January 2025
2 Commits • 1 Features
Jan 1, 2025Summary for 2025-01: Delivered the Cloud Foundry Integrations Ownership Reassignment and fixed a packaging bug for RPM-based persistent integrations. Key achievements include removing Platform Integrations from codeowners, restructuring ownership under the agent-integrations team, and improving packaging scripts and versioning logic. Impact: increased reliability of upgrades/removals, clearer ownership and faster onboarding for new contributors, and stronger packaging automation. Demonstrated skills include Python scripting, packaging tooling, code ownership governance, and cross-team collaboration.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 — DataDog/datadog-agent: Delivered Per-Core CPU Usage Metrics and Enhanced Reporting. Implemented per-core system.cpu.*.total metrics and enhanced CPU checks with per-core totals and improved context-switch handling. Added configurability to enable/disable per-core reporting to control overhead. The work is captured in commit bc6a04733d16a63f351470b0e6a882519d836907 (part of #32330), delivering deeper CPU observability for faster diagnosis of hotspots and better capacity planning. No major bugs fixed this month; focus was on feature delivery and code quality.
1 Commits • 1 Features
Dec 1, 2024December 2024 — DataDog/datadog-agent: Delivered Per-Core CPU Usage Metrics and Enhanced Reporting. Implemented per-core system.cpu.*.total metrics and enhanced CPU checks with per-core totals and improved context-switch handling. Added configurability to enable/disable per-core reporting to control overhead. The work is captured in commit bc6a04733d16a63f351470b0e6a882519d836907 (part of #32330), delivering deeper CPU observability for faster diagnosis of hotspots and better capacity planning. No major bugs fixed this month; focus was on feature delivery and code quality.
December 2024
Activity
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Quality Metrics
Correctness97.6%
Maintainability86.6%
Architecture92.0%
Performance83.8%
AI Usage30.0%
Skills & Technologies
Programming Languages
BashBazelC#GitGoMakefilePowerShellPythonRubyRust
Technical Skills
API DevelopmentAPI developmentAgent testingAsynchronous ProgrammingBackend DevelopmentBazelBuild AutomationC#CI/CDCLI DevelopmentCode Ownership ManagementCode QualityConcurrencyConfiguration ManagementContinuous Integration
Repositories Contributed To
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