From d1eb2822d9d5b346840851cf21611345454ed734 Mon Sep 17 00:00:00 2001
From: Vishesh <8760112+vishesh92@users.noreply.github.com>
Date: Thu, 22 Jan 2026 18:59:35 +0530
Subject: [PATCH] Remove redundant Exceptions from logs for vm schedules
 (#12428)

---
 .../vm/schedule/dao/VMScheduledJobDao.java        |  2 ++
 .../vm/schedule/dao/VMScheduledJobDaoImpl.java    | 15 +++++++++++++++
 .../cloudstack/vm/schedule/VMSchedulerImpl.java   |  8 +++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDao.java b/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDao.java
index 7b8c01aae6a..835ac696f26 100644
--- a/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDao.java
+++ b/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDao.java
@@ -31,4 +31,6 @@ public interface VMScheduledJobDao extends GenericDao<VMScheduledJobVO, Long> {
     int expungeJobsForSchedules(List<Long> scheduleId, Date dateAfter);
 
     int expungeJobsBefore(Date currentTimestamp);
+
+    VMScheduledJobVO findByScheduleAndTimestamp(long scheduleId, Date scheduledTimestamp);
 }
diff --git a/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDaoImpl.java b/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDaoImpl.java
index 50a2b12fd77..2f08a41b92e 100644
--- a/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDaoImpl.java
+++ b/engine/schema/src/main/java/org/apache/cloudstack/vm/schedule/dao/VMScheduledJobDaoImpl.java
@@ -39,6 +39,8 @@ public class VMScheduledJobDaoImpl extends GenericDaoBase<VMScheduledJobVO, Long
 
     private final SearchBuilder<VMScheduledJobVO> expungeJobForScheduleSearch;
 
+    private final SearchBuilder<VMScheduledJobVO> scheduleAndTimestampSearch;
+
     static final String SCHEDULED_TIMESTAMP = "scheduled_timestamp";
 
     static final String VM_SCHEDULE_ID = "vm_schedule_id";
@@ -58,6 +60,11 @@ public class VMScheduledJobDaoImpl extends GenericDaoBase<VMScheduledJobVO, Long
         expungeJobForScheduleSearch.and(VM_SCHEDULE_ID, expungeJobForScheduleSearch.entity().getVmScheduleId(), SearchCriteria.Op.IN);
         expungeJobForScheduleSearch.and(SCHEDULED_TIMESTAMP, expungeJobForScheduleSearch.entity().getScheduledTime(), SearchCriteria.Op.GTEQ);
         expungeJobForScheduleSearch.done();
+
+        scheduleAndTimestampSearch = createSearchBuilder();
+        scheduleAndTimestampSearch.and(VM_SCHEDULE_ID, scheduleAndTimestampSearch.entity().getVmScheduleId(), SearchCriteria.Op.EQ);
+        scheduleAndTimestampSearch.and(SCHEDULED_TIMESTAMP, scheduleAndTimestampSearch.entity().getScheduledTime(), SearchCriteria.Op.EQ);
+        scheduleAndTimestampSearch.done();
     }
 
     /**
@@ -92,4 +99,12 @@ public class VMScheduledJobDaoImpl extends GenericDaoBase<VMScheduledJobVO, Long
         sc.setParameters(SCHEDULED_TIMESTAMP, date);
         return expunge(sc);
     }
+
+    @Override
+    public VMScheduledJobVO findByScheduleAndTimestamp(long scheduleId, Date scheduledTimestamp) {
+        SearchCriteria<VMScheduledJobVO> sc = scheduleAndTimestampSearch.create();
+        sc.setParameters(VM_SCHEDULE_ID, scheduleId);
+        sc.setParameters(SCHEDULED_TIMESTAMP, scheduledTimestamp);
+        return findOneBy(sc);
+    }
 }
diff --git a/server/src/main/java/org/apache/cloudstack/vm/schedule/VMSchedulerImpl.java b/server/src/main/java/org/apache/cloudstack/vm/schedule/VMSchedulerImpl.java
index 7410fb1c265..56d794fa5c2 100644
--- a/server/src/main/java/org/apache/cloudstack/vm/schedule/VMSchedulerImpl.java
+++ b/server/src/main/java/org/apache/cloudstack/vm/schedule/VMSchedulerImpl.java
@@ -162,7 +162,13 @@ public class VMSchedulerImpl extends ManagerBase implements VMScheduler, Configu
         }
 
         Date scheduledDateTime = Date.from(ts.toInstant());
-        VMScheduledJobVO scheduledJob = new VMScheduledJobVO(vmSchedule.getVmId(), vmSchedule.getId(), vmSchedule.getAction(), scheduledDateTime);
+        VMScheduledJobVO scheduledJob = vmScheduledJobDao.findByScheduleAndTimestamp(vmSchedule.getId(), scheduledDateTime);
+        if (scheduledJob != null) {
+            logger.trace("Job is already scheduled for schedule {} at {}", vmSchedule, scheduledDateTime);
+            return scheduledDateTime;
+        }
+
+        scheduledJob = new VMScheduledJobVO(vmSchedule.getVmId(), vmSchedule.getId(), vmSchedule.getAction(), scheduledDateTime);
         try {
             vmScheduledJobDao.persist(scheduledJob);
             ActionEventUtils.onScheduledActionEvent(User.UID_SYSTEM, vm.getAccountId(), actionEventMap.get(vmSchedule.getAction()),