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docs(01-02): complete ingestion endpoints plan

Browse Source 
- SUMMARY.md with 14 files, 3 commits, 11 integration tests
- STATE.md: Phase 1 complete (3/3 plans)
- ROADMAP.md: Phase 01 progress updated
- REQUIREMENTS.md: INGST-01, INGST-02, INGST-03 marked complete

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
hsiegeln
2026-03-11 12:16:46 +01:00
parent 8fe65f083c
commit 7f0ceca8b1
3 changed files with 168 additions and 16 deletions
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6
.planning/REQUIREMENTS.md
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@@ -9,9 +9,9 @@ Requirements for initial release. Each maps to roadmap phases. Tracked as Gitea
### Data Ingestion
- [ ] **INGST-01**: Server accepts `RouteExecution` (single or array) via `POST /api/v1/data/executions` and returns `202 Accepted` (#1)
- [ ] **INGST-02**: Server accepts `RouteGraph` (single or array) via `POST /api/v1/data/diagrams` and returns `202 Accepted` (#2)
- [ ] **INGST-03**: Server accepts metrics snapshots via `POST /api/v1/data/metrics` and returns `202 Accepted` (#3)
- [x] **INGST-01**: Server accepts `RouteExecution` (single or array) via `POST /api/v1/data/executions` and returns `202 Accepted` (#1)
- [x] **INGST-02**: Server accepts `RouteGraph` (single or array) via `POST /api/v1/data/diagrams` and returns `202 Accepted` (#2)
- [x] **INGST-03**: Server accepts metrics snapshots via `POST /api/v1/data/metrics` and returns `202 Accepted` (#3)
- [x] **INGST-04**: Ingestion uses in-memory batch buffer with configurable flush interval/size for ClickHouse writes (#4)
- [x] **INGST-05**: Server returns `503 Service Unavailable` when write buffer is full (backpressure) (#5)
- [x] **INGST-06**: ClickHouse TTL automatically expires data after 30 days (configurable) (#6)

30
.planning/STATE.md
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@@ -3,15 +3,15 @@ gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: executing
stopped_at: Completed 01-03-PLAN.md
last_updated: "2026-03-11T11:03:08.000Z"
last_activity: 2026-03-11 -- Completed 01-03 (API foundation, protocol interceptor, integration tests)
stopped_at: Completed 01-02-PLAN.md
last_updated: "2026-03-11T11:14:00.000Z"
last_activity: 2026-03-11 -- Completed 01-02 (Ingestion endpoints, ClickHouse repositories, flush scheduler, 11 ITs)
progress:
total_phases: 4
completed_phases: 0
completed_phases: 1
total_plans: 3
completed_plans: 2
percent: 66
completed_plans: 3
percent: 100
---
# Project State
@@ -25,12 +25,12 @@ See: .planning/PROJECT.md (updated 2026-03-11)
## Current Position
Phase: 1 of 4 (Ingestion Pipeline + API Foundation)
Plan: 2 of 3 in current phase
Status: Executing
Last activity: 2026-03-11 -- Completed 01-03 (API foundation, protocol interceptor, integration tests)
Phase: 1 of 4 (Ingestion Pipeline + API Foundation) -- COMPLETE
Plan: 3 of 3 in current phase
Status: Phase 1 Complete
Last activity: 2026-03-11 -- Completed 01-02 (Ingestion endpoints, ClickHouse repositories, flush scheduler, 11 ITs)
Progress: [██████░░░░] 66%
Progress: [██████████] 100%
## Performance Metrics
@@ -51,6 +51,7 @@ Progress: [██████░░░░] 66%
*Updated after each plan completion*
| Phase 01 P01 | 3min | 2 tasks | 13 files |
| Phase 01 P02 | 7min | 2 tasks | 14 files |
| Phase 01 P03 | 10min | 2 tasks | 12 files |
## Accumulated Context
@@ -69,6 +70,9 @@ Recent decisions affecting current work:
- [Phase 01]: Upgraded testcontainers to 2.0.3 for Docker Desktop 29.x compatibility
- [Phase 01]: Changed error_message/error_stacktrace to non-nullable String for tokenbf_v1 index compat
- [Phase 01]: TTL expressions require toDateTime() cast for DateTime64 columns in ClickHouse 25.3
- [Phase 01]: Controllers accept raw String body to support both single and array JSON payloads
- [Phase 01]: IngestionService is a plain class in core module, wired as bean by IngestionBeanConfig in app
- [Phase 01]: Removed @Configuration from IngestionConfig to fix duplicate bean with @EnableConfigurationProperties
### Pending Todos
@@ -83,6 +87,6 @@ None yet.
## Session Continuity
Last session: 2026-03-11T11:03:08.000Z
Stopped at: Completed 01-03-PLAN.md
Last session: 2026-03-11T11:14:00.000Z
Stopped at: Completed 01-02-PLAN.md (Phase 1 fully complete)
Resume file: None

148
.planning/phases/01-ingestion-pipeline-api-foundation/01-02-SUMMARY.md Normal file
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@@ -0,0 +1,148 @@
---
phase: 01-ingestion-pipeline-api-foundation
plan: 02
subsystem: api
tags: [rest, ingestion, clickhouse, jdbc, backpressure, spring-boot, integration-tests]
requires:
- phase: 01-01
provides: WriteBuffer, repository interfaces, IngestionConfig, ClickHouse schema
- phase: 01-03
provides: AbstractClickHouseIT base class, ProtocolVersionInterceptor, application bootstrap
provides:
- IngestionService routing data to WriteBuffer instances
- ClickHouseExecutionRepository with batch insert and parallel processor arrays
- ClickHouseDiagramRepository with SHA-256 content-hash deduplication
- ClickHouseMetricsRepository with batch insert for agent_metrics
- ClickHouseFlushScheduler with SmartLifecycle shutdown flush
- POST /api/v1/data/executions endpoint (single and array)
- POST /api/v1/data/diagrams endpoint (single and array)
- POST /api/v1/data/metrics endpoint (array)
- Backpressure: 503 with Retry-After when buffer full
- 11 integration tests verifying end-to-end ingestion pipeline
affects: [02-search, 03-agent-registry]
tech-stack:
added: []
patterns: [single/array JSON payload parsing via raw String body, SmartLifecycle for graceful shutdown flush, BatchPreparedStatementSetter for ClickHouse batch inserts, SHA-256 content-hash dedup for diagrams]
key-files:
created:
- cameleer3-server-core/src/main/java/com/cameleer3/server/core/ingestion/IngestionService.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/storage/ClickHouseExecutionRepository.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/storage/ClickHouseDiagramRepository.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/storage/ClickHouseMetricsRepository.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/ingestion/ClickHouseFlushScheduler.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/IngestionBeanConfig.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/ExecutionController.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/DiagramController.java
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/MetricsController.java
- cameleer3-server-app/src/test/java/com/cameleer3/server/app/controller/ExecutionControllerIT.java
- cameleer3-server-app/src/test/java/com/cameleer3/server/app/controller/DiagramControllerIT.java
- cameleer3-server-app/src/test/java/com/cameleer3/server/app/controller/MetricsControllerIT.java
- cameleer3-server-app/src/test/java/com/cameleer3/server/app/controller/BackpressureIT.java
modified:
- cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/IngestionConfig.java
key-decisions:
- "Controllers accept raw String body and detect single vs array JSON to support both payload formats"
- "IngestionService is a plain class in core module, wired as a bean by IngestionBeanConfig in app module"
- "Removed @Configuration from IngestionConfig to fix duplicate bean with @EnableConfigurationProperties"
patterns-established:
- "Controller pattern: accept raw String body, parse single/array JSON, delegate to IngestionService, return 202 or 503"
- "Repository pattern: BatchPreparedStatementSetter for ClickHouse batch inserts"
- "FlushScheduler pattern: SmartLifecycle for graceful shutdown, loop-drain until empty"
- "Backpressure pattern: WriteBuffer.offer returns false -> controller returns 503 + Retry-After"
requirements-completed: [INGST-01, INGST-02, INGST-03, INGST-05]
duration: 7min
completed: 2026-03-11
---
# Phase 1 Plan 02: Ingestion Endpoints and ClickHouse Pipeline Summary
**Three REST ingestion endpoints with ClickHouse batch insert repositories, scheduled flush with graceful shutdown, and 11 green integration tests verifying end-to-end data flow and backpressure**
## Performance
- **Duration:** 7 min
- **Started:** 2026-03-11T11:06:47Z
- **Completed:** 2026-03-11T11:14:00Z
- **Tasks:** 2
- **Files modified:** 14
## Accomplishments
- Complete ingestion pipeline: HTTP POST -> IngestionService -> WriteBuffer -> ClickHouseFlushScheduler -> ClickHouse repositories
- Three REST endpoints accepting both single and array JSON payloads with 202 Accepted response
- Backpressure returns 503 with Retry-After header when write buffer is full
- ClickHouse repositories: batch insert for executions (with flattened processor arrays), JSON storage with SHA-256 dedup for diagrams, batch insert for metrics
- Graceful shutdown via SmartLifecycle drains all remaining buffered data
## Task Commits
Each task was committed atomically:
1. **Task 1: IngestionService, ClickHouse repositories, and flush scheduler** - `17a18cf` (feat)
2. **Task 2 RED: Failing integration tests for ingestion endpoints** - `d55ebc1` (test)
3. **Task 2 GREEN: Ingestion REST controllers with backpressure** - `8fe65f0` (feat)
## Files Created/Modified
- `cameleer3-server-core/.../ingestion/IngestionService.java` - Routes data to WriteBuffer instances
- `cameleer3-server-app/.../storage/ClickHouseExecutionRepository.java` - Batch insert with parallel processor arrays
- `cameleer3-server-app/.../storage/ClickHouseDiagramRepository.java` - JSON storage with SHA-256 content-hash dedup
- `cameleer3-server-app/.../storage/ClickHouseMetricsRepository.java` - Batch insert for agent_metrics
- `cameleer3-server-app/.../ingestion/ClickHouseFlushScheduler.java` - Scheduled drain + SmartLifecycle shutdown
- `cameleer3-server-app/.../config/IngestionBeanConfig.java` - WriteBuffer and IngestionService bean wiring
- `cameleer3-server-app/.../controller/ExecutionController.java` - POST /api/v1/data/executions
- `cameleer3-server-app/.../controller/DiagramController.java` - POST /api/v1/data/diagrams
- `cameleer3-server-app/.../controller/MetricsController.java` - POST /api/v1/data/metrics
- `cameleer3-server-app/.../config/IngestionConfig.java` - Removed @Configuration (fix duplicate bean)
- `cameleer3-server-app/.../controller/ExecutionControllerIT.java` - 4 tests: single, array, flush, unknown fields
- `cameleer3-server-app/.../controller/DiagramControllerIT.java` - 3 tests: single, array, flush
- `cameleer3-server-app/.../controller/MetricsControllerIT.java` - 2 tests: POST, flush
- `cameleer3-server-app/.../controller/BackpressureIT.java` - 2 tests: 503 response, data not lost
## Decisions Made
- Controllers accept raw String body and detect single vs array JSON (starts with `[`), supporting both payload formats per protocol spec
- IngestionService is a plain class in core module (no Spring annotations), wired as a bean by IngestionBeanConfig in app module
- Removed `@Configuration` from IngestionConfig to fix duplicate bean conflict with `@EnableConfigurationProperties`
## Deviations from Plan
### Auto-fixed Issues
**1. [Rule 1 - Bug] Fixed duplicate IngestionConfig bean**
- **Found during:** Task 2 (integration test context startup)
- **Issue:** IngestionConfig had both `@Configuration` and `@ConfigurationProperties`, while `@EnableConfigurationProperties(IngestionConfig.class)` on the app class created a second bean, causing "expected single matching bean but found 2"
- **Fix:** Removed `@Configuration` from IngestionConfig, relying solely on `@EnableConfigurationProperties`
- **Files modified:** cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/IngestionConfig.java
- **Verification:** Application context starts successfully, all tests pass
- **Committed in:** 8fe65f0
---
**Total deviations:** 1 auto-fixed (1 bug)
**Impact on plan:** Necessary fix for Spring context startup. No scope creep.
## Issues Encountered
- BackpressureIT initially failed because the scheduled flush drained the buffer before the test could fill it. Fixed by using a 60s flush interval and batch POST to fill buffer atomically.
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- All three ingestion endpoints operational and tested
- Phase 1 complete: ClickHouse infrastructure, API foundation, and ingestion pipeline all working
- Ready for Phase 2 (search) and Phase 3 (agent registry) which both depend only on Phase 1
## Self-Check: PASSED
All 13 created files verified present. All 3 task commits verified in git log.
---
*Phase: 01-ingestion-pipeline-api-foundation*
*Completed: 2026-03-11*