From aeec01c7f933615c126fd7b6a1a832c54f8d230a Mon Sep 17 00:00:00 2001
From: 18alantom <2.alan.tom@gmail.com>
Date: Tue, 21 Nov 2023 12:13:35 +0530
Subject: [PATCH] perf(Scheduling): add jitter to job scheduling

Addresses #19007
---
 .../doctype/scheduled_job_type/scheduled_job_type.py   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/frappe/core/doctype/scheduled_job_type/scheduled_job_type.py b/frappe/core/doctype/scheduled_job_type/scheduled_job_type.py
index 6f56180c89..cfb741e5fe 100644
--- a/frappe/core/doctype/scheduled_job_type/scheduled_job_type.py
+++ b/frappe/core/doctype/scheduled_job_type/scheduled_job_type.py
@@ -2,7 +2,8 @@
 # License: MIT. See LICENSE
 
 import json
-from datetime import datetime
+from datetime import datetime, timedelta
+from random import randint
 
 import click
 from croniter import croniter
@@ -110,7 +111,12 @@ class ScheduledJobType(Document):
 		# immediately, even when it's meant to be daily.
 		# A dynamic fallback like current time might miss the scheduler interval and job will never start.
 		last_execution = get_datetime(self.last_execution or self.creation)
-		return croniter(self.cron_format, last_execution).get_next(datetime)
+		next_execution = croniter(self.cron_format, last_execution).get_next(datetime)
+
+		jitter = 0
+		if self.frequency in ("Hourly Long", "Daily Long"):
+			jitter = randint(1, 600)
+		return next_execution + timedelta(seconds=jitter)
 
 	def execute(self):
 		self.scheduler_log = None