diff --git a/src/main/java/com/interplug/qcast/batch/JobLauncherController.java b/src/main/java/com/interplug/qcast/batch/JobLauncherController.java
index 8250c362..9cd27498 100644
--- a/src/main/java/com/interplug/qcast/batch/JobLauncherController.java
+++ b/src/main/java/com/interplug/qcast/batch/JobLauncherController.java
@@ -110,8 +110,19 @@ public class JobLauncherController {
 
       // return "Job " + jobName + " started";
       return resultMap;
+    } catch (JobExecutionAlreadyRunningException e) {
+      log.warn("Job {} 이 다른 인스턴스에서 이미 실행 중입니다.", jobName);
+      resultMap.put("code", "ALREADY_RUNNING");
+      resultMap.put("message", "Job " + jobName + " is already running on another instance.");
+      return resultMap;
     } catch (Exception e) {
       logExceptionDetails("Manual launch failed", jobName, e);
+      if (isDeadlockException(e)) {
+        logDeadlockDetails(jobName, e);
+        resultMap.put("code", "DEADLOCK");
+        resultMap.put("message", "Deadlock detected while executing job " + jobName + ". Please retry.");
+        return resultMap;
+      }
       resultMap.put("code", "FAILED");
       resultMap.put("message", e.getMessage());
       return resultMap;
@@ -291,54 +302,29 @@ public class JobLauncherController {
 //
 //    return jobName+ " executed successfully";
 
-    // 재시도 로직 추가
-    int maxRetries = 3;
-    int retryCount = 0;
-    long initialDelay = 60000; // 1분
+    JobParameters jobParameters = new JobParametersBuilder()
+            .addString("jobName", jobName)
+            .addDate("time", new Date())
+            .toJobParameters();
 
-    while (retryCount < maxRetries) {
-      JobParameters jobParameters = null;
-      try {
-        jobParameters = new JobParametersBuilder()
-                .addString("jobName", jobName)
-                .addDate("time", new Date())
-                .addLong("run.id", System.currentTimeMillis())
-                .toJobParameters();
-
-        log.info("Job {} 실행 시도 (재시도 {}/{})", jobName, retryCount + 1, maxRetries);
-        JobExecution jobExecution = jobLauncher.run(job, jobParameters);
-        log.info("Job {} started with execution id {}", jobName, jobExecution.getId());
-
-        log.info("Job {} 완료 상태: {}", jobName, jobExecution.getExitStatus().getExitCode());
-        return jobName + " executed successfully";
-
-      } catch (Exception e) {
-        retryCount++;
-        logExceptionDetails("Scheduled launch failed", jobName, e);
-
-        // 데드락 오류인지 확인
-        boolean isDeadlock = isDeadlockException(e);
-
-        if (isDeadlock && retryCount < maxRetries) {
-          long delay = initialDelay * retryCount; // 1분, 2분, 3분 증가
-          log.warn("Deadlock detected for job {}. retry {}/{} in {}ms. params={}",
-                  jobName, retryCount, maxRetries, delay, jobParameters);
-
-          try {
-            Thread.sleep(delay);
-          } catch (InterruptedException ie) {
-            Thread.currentThread().interrupt();
-            log.error("Job {} 재시도 중 인터럽트 발생", jobName, ie);
-            return "Job " + jobName + " interrupted during retry";
-          }
-        } else {
-          log.error("Job {} 실행 실패 (재시도 {}/{})", jobName, retryCount, maxRetries, e);
-          return "Error executing job " + jobName + ": " + e.getMessage();
-        }
+    try {
+      log.info("Job {} 실행 시작", jobName);
+      JobExecution jobExecution = jobLauncher.run(job, jobParameters);
+      log.info("Job {} completed with execution id {} and status {}",
+              jobName, jobExecution.getId(), jobExecution.getExitStatus().getExitCode());
+      return jobName + " executed successfully";
+    } catch (JobExecutionAlreadyRunningException e) {
+      log.warn("Job {} 이 다른 인스턴스에서 이미 실행 중입니다. 스킵합니다.", jobName);
+      return "Job " + jobName + " is already running on another instance. Skipped.";
+    } catch (Exception e) {
+      logExceptionDetails("Scheduled launch failed", jobName, e);
+      if (isDeadlockException(e)) {
+        logDeadlockDetails(jobName, e);
+        return "Deadlock detected while executing job " + jobName + ". Manual retry required.";
       }
+      log.error("Job {} 실행 실패", jobName, e);
+      return "Error executing job " + jobName + ": " + e.getMessage();
     }
-
-    return "Job " + jobName + " failed after " + maxRetries + " retries";
   }
 
   /**
@@ -402,6 +388,38 @@ public class JobLauncherController {
     }
   }
 
+  private void logDeadlockDetails(String jobName, Exception e) {
+    log.error("===== [DEADLOCK] Job: {} 데드락 상세 정보 =====", jobName);
+
+    Throwable current = e;
+    int depth = 0;
+    while (current != null && depth < 10) {
+      log.error("[DEADLOCK] Exception chain [{}]: {} - {}",
+              depth, current.getClass().getName(), current.getMessage());
+
+      if (current instanceof SQLException) {
+        SQLException sqlEx = (SQLException) current;
+        log.error("[DEADLOCK] SQLState: {}, ErrorCode: {}, Message: {}",
+                sqlEx.getSQLState(), sqlEx.getErrorCode(), sqlEx.getMessage());
+
+        // SQLException 체인의 next exception도 확인
+        SQLException nextEx = sqlEx.getNextException();
+        int sqlDepth = 0;
+        while (nextEx != null && sqlDepth < 10) {
+          log.error("[DEADLOCK] SQL NextException [{}]: SQLState={}, ErrorCode={}, Message={}",
+                  sqlDepth, nextEx.getSQLState(), nextEx.getErrorCode(), nextEx.getMessage());
+          nextEx = nextEx.getNextException();
+          sqlDepth++;
+        }
+      }
+      current = current.getCause();
+      depth++;
+    }
+
+    log.error("[DEADLOCK] Full stack trace:", e);
+    log.error("===== [DEADLOCK] Job: {} 데드락 상세 정보 끝 =====", jobName);
+  }
+
   private boolean isDeadlockException(Throwable throwable) {
     Throwable root = throwable;
     while (root.getCause() != null) {
@@ -409,10 +427,16 @@ public class JobLauncherController {
     }
     if (root instanceof SQLException) {
       SQLException sqlEx = (SQLException) root;
-      return "40001".equals(sqlEx.getSQLState()) || sqlEx.getErrorCode() == 1205;
+      if ("40001".equals(sqlEx.getSQLState()) || sqlEx.getErrorCode() == 1205) {
+        return true;
+      }
     }
     String message = root.getMessage();
-    return message != null && message.toLowerCase().contains("deadlock");
+    if (message == null) return false;
+    String lowerMessage = message.toLowerCase();
+    return lowerMessage.contains("deadlock")
+            || message.contains("デッドロック")
+            || message.contains("교착 상태");
   }
 
   private String buildSqlExceptionChain(SQLException sqlEx) {
diff --git a/src/main/resources/template/excel/excel_download_quotation_detail_template.xlsx b/src/main/resources/template/excel/excel_download_quotation_detail_template.xlsx
index 5602c4d3..66f32a69 100644
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diff --git a/src/main/resources/template/excel/excel_download_simulation_detail_template.xlsx b/src/main/resources/template/excel/excel_download_simulation_detail_template.xlsx
index b15b0cf3..31064125 100644
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