Add configurable TTL for Redis task data #1730
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Add automatic expiration for task data stored in Redis to prevent unbounded memory growth over time. Changes: - Add task_ttl_seconds config option (default: 3600s / 1 hour) - Add REDIS_TASK_TTL environment variable override - Add hset_with_ttl helper for consistent TTL application - Apply TTL to all task data (crawl jobs, LLM extraction) - Add 13 unit tests for TTL functionality - Update documentation with TTL configuration details Setting TTL to 0 disables automatic expiration.
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Summary
REDIS_TASK_TTLenvironment variableChanges
Configuration
task_ttl_secondstoconfig.ymlunder redis section (default: 3600)REDIS_TASK_TTLenvironment variable support for runtime overrideImplementation
get_redis_task_ttl()helper function inutils.pyhset_with_ttl()async helper inapi.pyfor consistent TTL applicationDocumentation
config.ymlwith TTL documentationREADME.mdwith TTL configuration detailsTest plan
get_redis_task_ttl()function (4 tests)hset_with_ttl()behavior (4 tests)