backend optimizations + redundant commits cleanup

core/tasks/cron_tasks.py

@@ -1,6 +1,7 @@
 import asyncio
 
 from apscheduler.triggers.cron import CronTrigger
+from apscheduler.triggers.interval import IntervalTrigger
 
 from database import async_session_maker, cancel_expired_pending_payments
 from logger import logger
@@ -65,7 +66,29 @@ def cleanup_expired_gifts_process_runner() -> None:
     asyncio.run(cleanup_expired_gifts_job())
 
 
+async def log_db_pool_status() -> None:
+    """Раз в минуту логирует состояние пула соединений: даёт видимость «упираемся ли в лимит»."""
+    try:
+        from database.db import engine
+
+        pool = engine.pool
+        size = pool.size()
+        checked_out = pool.checkedout()
+        checked_in = getattr(pool, "checkedin", lambda: size - checked_out)()
+        overflow = getattr(pool, "overflow", lambda: -1)()
+        logger.info(
+            "[DBPool] size={} in_use={} idle={} overflow={}",
+            size,
+            checked_out,
+            checked_in,
+            overflow,
+        )
+    except Exception as error:
+        logger.debug("[DBPool] не удалось получить статус пула: {}", error)
+
+
 AUDIT_DRAIN_TRIGGER = CronTrigger(hour=0, minute=0, timezone="Europe/Moscow")
 DAILY_STATS_REPORT_TRIGGER = CronTrigger(hour=0, minute=1, timezone="Europe/Moscow")
 STALE_PAYMENTS_SWEEP_TRIGGER = CronTrigger(minute=0, timezone="Europe/Moscow")
 EXPIRED_GIFTS_CLEANUP_TRIGGER = CronTrigger(hour=3, minute=0, timezone="Europe/Moscow")
+DB_POOL_STATUS_TRIGGER = IntervalTrigger(minutes=1)

core/tasks/registry.py

@@ -1,10 +1,12 @@
 from core.tasks.cron_tasks import (
     AUDIT_DRAIN_TRIGGER,
     DAILY_STATS_REPORT_TRIGGER,
+    DB_POOL_STATUS_TRIGGER,
     EXPIRED_GIFTS_CLEANUP_TRIGGER,
     STALE_PAYMENTS_SWEEP_TRIGGER,
     cleanup_expired_gifts_job,
     cleanup_expired_gifts_process_runner,
+    log_db_pool_status,
     scheduled_audit_drain,
     scheduled_audit_drain_process_runner,
     scheduled_stats_report,
@@ -110,4 +112,10 @@ def register_periodic_tasks() -> None:
             EXPIRED_GIFTS_CLEANUP_TRIGGER,
         )
 
+    periodic_task_manager.register_cron_task(
+        "db_pool_status",
+        log_db_pool_status,
+        DB_POOL_STATUS_TRIGGER,
+    )
+
     _TASKS_REGISTERED = True