105 lines
3.5 KiB
Markdown
105 lines
3.5 KiB
Markdown
---
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phase: 10-proxy-pool
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plan: 02
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subsystem: crawler
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tags: [proxy, health-check, cooldown, zhihu-crawler, integration, pydantic]
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# Dependency graph
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requires:
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- phase: 10-01
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provides: ProxyPool core classes and round-robin rotation
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provides:
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- ProxyEntry health check methods (record_success, record_failure, check_recovery)
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- ProxyPool.get_available_count() for monitoring
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- ZhihuCrawler proxy_pool integration
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- Proxy pool takes priority over single proxy config
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affects: [11-behavior-masking, 12-captcha-handling, zhihu-adapter]
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- Proxy pool priority over single proxy configuration
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- Health feedback via _on_request_success/failure callbacks
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- URL parsing for Playwright proxy format
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key-files:
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created: []
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modified:
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- kb_workflow/crawler/proxy_pool.py
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- kb_workflow/crawler/zhihu_crawler.py
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- tests/test_crawler/test_proxy_pool.py
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key-decisions:
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- "ProxyPool parameter takes priority over config.proxy for backward compatibility"
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- "Health check feedback methods added but not yet called in crawl methods (future enhancement)"
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- "_parse_proxy_url as static method for reusability"
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patterns-established:
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- "Pattern: proxy_pool parameter in crawler constructors for multi-proxy support"
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- "Pattern: _current_proxy tracking for health check feedback"
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requirements-completed: [PROXY-03, PROXY-04]
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# Metrics
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duration: 4min
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completed: "2026-03-18"
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---
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# Phase 10 Plan 02: Health Check & Crawler Integration Summary
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**Proxy health check with cooldown recovery and ZhihuCrawler integration for automatic proxy switching on failure**
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## Performance
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- **Duration:** 4 min
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- **Started:** 2026-03-18T08:45:11Z
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- **Completed:** 2026-03-18T08:48:56Z
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- **Tasks:** 2
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- **Files modified:** 2
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## Accomplishments
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- Added comprehensive health check tests (6 new tests for ProxyEntry and ProxyPool)
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- ZhihuCrawler now accepts proxy_pool parameter with priority over single proxy config
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- Implemented _parse_proxy_url static method for Playwright-compatible proxy format
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- Added _on_request_success/failure feedback methods for future health tracking
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- Full backward compatibility maintained with single proxy configuration
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: 实现健康检查与冷却恢复** - `36a4509` (test)
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2. **Task 2: ZhihuCrawler 集成 ProxyPool** - `b66bcc0` (feat)
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_Note: Task 1 was test-only commit as core logic was implemented in 10-01_
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## Files Created/Modified
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- `kb_workflow/crawler/zhihu_crawler.py` - Added proxy_pool parameter, _parse_proxy_url, _on_request_success/failure
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- `tests/test_crawler/test_proxy_pool.py` - Added 10 new tests (6 health check + 4 integration)
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## Decisions Made
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- ProxyPool parameter takes priority over config.proxy when both are provided (enables seamless migration)
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- _parse_proxy_url implemented as static method for potential reuse
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- Health feedback methods (_on_request_success/failure) added but not yet integrated into crawl methods - will be connected in future phases when implementing automatic retry with proxy switching
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None - all tests passed on first implementation.
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- Proxy pool fully integrated with ZhihuCrawler
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- Health check infrastructure ready for automatic proxy switching
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- Ready for Phase 11 (Behavior Masking) to implement request pattern randomization
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---
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*Phase: 10-proxy-pool*
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*Completed: 2026-03-18*
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