diff --git a/src/main/java/com/kamco/cd/training/postgres/core/ModelTrainJobCoreService.java b/src/main/java/com/kamco/cd/training/postgres/core/ModelTrainJobCoreService.java
index a20cfc9..4bbc9d4 100644
--- a/src/main/java/com/kamco/cd/training/postgres/core/ModelTrainJobCoreService.java
+++ b/src/main/java/com/kamco/cd/training/postgres/core/ModelTrainJobCoreService.java
@@ -8,9 +8,11 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.log4j.Log4j2;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+@Log4j2
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
@@ -92,6 +94,8 @@ public class ModelTrainJobCoreService {
     job.setExitCode(exitCode);
     job.setErrorMessage(errorMessage);
     job.setFinishedDttm(ZonedDateTime.now());
+
+    log.info("[TRAIN JOB FAIL] jobId={}, modelId={}", jobId, errorMessage);
   }
 
   /** 취소 처리 */
diff --git a/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java b/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
index 31b32cc..dd19fe5 100644
--- a/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
+++ b/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
@@ -380,7 +380,6 @@ public class DockerTrainService {
       synchronized (log) {
         logs = log.toString();
       }
-
       return new TrainRunResult(null, containerName, -1, "TIMEOUT", logs);
     }
 
diff --git a/src/main/java/com/kamco/cd/training/train/service/TrainJobService.java b/src/main/java/com/kamco/cd/training/train/service/TrainJobService.java
index 505e9ed..d2599c1 100644
--- a/src/main/java/com/kamco/cd/training/train/service/TrainJobService.java
+++ b/src/main/java/com/kamco/cd/training/train/service/TrainJobService.java
@@ -17,12 +17,14 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 @Service
+@Log4j2
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
 public class TrainJobService {
@@ -237,7 +239,24 @@ public class TrainJobService {
       // 학습모델을 수정한다.
       modelTrainMngCoreService.updateModelMaster(modelId, updateReq);
     } catch (IOException e) {
-      throw new RuntimeException(e);
+      log.error(
+          "createTmpFile failed. modelUuid={}, modelId={}, tmpRaw={}, datasetIdsSize={}, uidsSize={}",
+          modelUuid,
+          modelId,
+          raw,
+          (datasetIds == null ? null : datasetIds.size()),
+          (uids == null ? null : uids.size()),
+          e);
+
+      // 런타임 예외로 래핑하되, 메시지에 핵심 정보 포함
+      throw new IllegalStateException(
+          "tmp dataset build failed: modelUuid="
+              + modelUuid
+              + ", modelId="
+              + modelId
+              + ", tmpRaw="
+              + raw,
+          e);
     }
     return modelUuid;
   }
diff --git a/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java b/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
index 5e17a1a..e889f21 100644
--- a/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
+++ b/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
@@ -11,11 +11,13 @@ import com.kamco.cd.training.train.dto.TrainRunRequest;
 import com.kamco.cd.training.train.dto.TrainRunResult;
 import java.util.Map;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.log4j.Log4j2;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.event.TransactionPhase;
 import org.springframework.transaction.event.TransactionalEventListener;
 
+@Log4j2
 @Component
 @RequiredArgsConstructor
 public class TrainJobWorker {
@@ -118,7 +120,7 @@ public class TrainJobWorker {
       }
 
     } catch (Exception e) {
-      modelTrainJobCoreService.markFailed(jobId, null, e.toString());
+      modelTrainJobCoreService.markFailed(jobId, null, e.getMessage());
 
       if ("EVAL".equals(params.get("jobType"))) {
         modelTrainMngCoreService.markStep2Error(modelId, e.getMessage());