Merge branch 'feat/training_260202' of https://kamco.git.gs.dabeeo.com/MVPTeam/kamco-train-api into feat/training_260202

src/main/java/com/kamco/cd/training/dataset/DatasetApiController.java

@@ -217,7 +217,7 @@ public class DatasetApiController {
   public ApiResponseDto<ApiResponseDto.ResponseObj> insertDataset(
       @RequestBody @Valid DatasetDto.AddReq addReq) {
 
-    return ApiResponseDto.ok(datasetService.insertDataset(addReq));
+    return ApiResponseDto.okObject(datasetService.insertDataset(addReq));
   }
 
   @Operation(summary = "객체별 파일 Path 조회", description = "파일 Path 조회")

src/main/java/com/kamco/cd/training/dataset/service/DatasetService.java

@@ -208,6 +208,13 @@ public class DatasetService {
     Long datasetUid = null; // master id 값, 등록하면서 가져올 예정
 
     try {
+      // 같은 uid 로 등록한 파일이 있는지 확인
+      Long existsCnt =
+          datasetCoreService.findDatasetByUidExistsCnt(addReq.getFileName().replace(".zip", ""));
+      if (existsCnt > 0) {
+        return new ResponseObj(ApiResponseCode.DUPLICATE_DATA, "이미 등록된 회차 데이터 파일입니다. 확인 부탁드립니다.");
+      }
+
       // 압축 해제
       FIleChecker.unzip(addReq.getFileName(), addReq.getFilePath());
 

src/main/java/com/kamco/cd/training/model/dto/ModelTrainMngDto.java

@@ -60,7 +60,7 @@ public class ModelTrainMngDto {
       }
     }
 
-    public String getStep2StatusNAme() {
+    public String getStep2StatusName() {
       if (this.step2Status == null || this.step2Status.isBlank()) return null;
       try {
         return TrainStatusType.valueOf(this.step2Status).getText(); // 또는 getName()

src/main/java/com/kamco/cd/training/model/service/ModelTrainMngService.java

@@ -13,7 +13,6 @@ import com.kamco.cd.training.model.dto.ModelTrainMngDto.SearchReq;
 import com.kamco.cd.training.postgres.core.HyperParamCoreService;
 import com.kamco.cd.training.postgres.core.ModelTrainMngCoreService;
 import java.io.IOException;
-import java.nio.file.Path;
 import java.util.List;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
@@ -102,9 +101,9 @@ public class ModelTrainMngService {
 
     try {
       // 데이터셋 심볼링크 생성
-      Path path = tmpDatasetService.buildTmpDatasetSymlink(raw, uids);
+      String tmpUid = tmpDatasetService.buildTmpDatasetSymlink(raw, uids);
       ModelTrainMngDto.UpdateReq updateReq = new ModelTrainMngDto.UpdateReq();
-      updateReq.setRequestPath(path.toString());
+      updateReq.setRequestPath(tmpUid);
       modelTrainMngCoreService.updateModelMaster(modelId, updateReq);
     } catch (IOException e) {
       throw new RuntimeException(e);

src/main/java/com/kamco/cd/training/model/service/TmpDatasetService.java

@@ -5,62 +5,139 @@ import java.nio.file.*;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
 
 @Slf4j
 @Service
 @RequiredArgsConstructor
 public class TmpDatasetService {
 
-  @Value("${train.docker.requestDir}")
-  private String requestDir;
+  //  @Value("${train.docker.requestDir}")
+  private String requestDir = "/home/kcomu/data";
 
-  @Transactional(readOnly = true)
-  public Path buildTmpDatasetSymlink(String uid, List<String> datasetUids) throws IOException {
+  public String buildTmpDatasetSymlink(String uid, List<String> datasetUids) throws IOException {
 
-    // 환경에 맞게 yml로 빼는 걸 추천
-    Path BASE = Paths.get(requestDir);
+    log.info("========== buildTmpDatasetHardlink START ==========");
+    log.info("uid={}", uid);
+    log.info("datasetUids={}", datasetUids);
+    log.info("requestDir(raw)={}", requestDir);
+
+    Path BASE = toPath(requestDir);
     Path tmp = BASE.resolve("tmp").resolve(uid);
 
-    // mkdir -p "$TMP"/train/{input1,input2,label} ...
+    log.info("BASE={}", BASE);
+    log.info("BASE exists? {}", Files.isDirectory(BASE));
+    log.info("tmp={}", tmp);
+
+    long noDir = 0, scannedDirs = 0, regularFiles = 0, hardlinksMade = 0;
+
+    // tmp 디렉토리 준비
     for (String type : List.of("train", "val")) {
       for (String part : List.of("input1", "input2", "label")) {
-        Files.createDirectories(tmp.resolve(type).resolve(part));
+        Path dir = tmp.resolve(type).resolve(part);
+        Files.createDirectories(dir);
+        log.info("createDirectories: {}", dir);
       }
     }
 
+    // 하드링크는 "같은 파일시스템"에서만 가능하므로 BASE/tmp가 같은 FS인지 미리 확인(권장)
+    try {
+      var baseStore = Files.getFileStore(BASE);
+      var tmpStore = Files.getFileStore(tmp.getParent()); // BASE/tmp
+      if (!baseStore.name().equals(tmpStore.name()) || !baseStore.type().equals(tmpStore.type())) {
+        throw new IOException(
+            "Hardlink requires same filesystem. baseStore="
+                + baseStore.name()
+                + "("
+                + baseStore.type()
+                + "), tmpStore="
+                + tmpStore.name()
+                + "("
+                + tmpStore.type()
+                + ")");
+      }
+    } catch (Exception e) {
+      // FileStore 비교가 환경마다 애매할 수 있어서, 여기서는 경고만 주고 실제 createLink에서 최종 판단하게 둘 수도 있음.
+      log.warn("FileStore check skipped/failed (will rely on createLink): {}", e.toString());
+    }
+
     for (String id : datasetUids) {
       Path srcRoot = BASE.resolve(id);
+      log.info("---- dataset id={} srcRoot={} exists? {}", id, srcRoot, Files.isDirectory(srcRoot));
 
       for (String type : List.of("train", "val")) {
         for (String part : List.of("input1", "input2", "label")) {
 
           Path srcDir = srcRoot.resolve(type).resolve(part);
 
-          // zsh NULL_GLOB: 폴더가 없으면 그냥 continue
-          if (!Files.isDirectory(srcDir)) continue;
+          if (!Files.isDirectory(srcDir)) {
+            log.warn("SKIP (not directory): {}", srcDir);
+            noDir++;
+            continue;
+          }
+
+          scannedDirs++;
+          log.info("SCAN dir={}", srcDir);
 
           try (DirectoryStream<Path> stream = Files.newDirectoryStream(srcDir)) {
             for (Path f : stream) {
-              if (!Files.isRegularFile(f)) continue;
+              if (!Files.isRegularFile(f)) {
+                log.debug("skip non-regular file: {}", f);
+                continue;
+              }
+
+              regularFiles++;
 
               String dstName = id + "__" + f.getFileName();
               Path dst = tmp.resolve(type).resolve(part).resolve(dstName);
 
-              // 이미 있으면 스킵(원하면 덮어쓰기 로직으로 바꿀 수 있음)
-              if (Files.exists(dst)) continue;
+              // dst가 남아있으면 삭제(심볼릭링크든 파일이든)
+              if (Files.exists(dst) || Files.isSymbolicLink(dst)) {
+                Files.delete(dst);
+                log.debug("deleted existing: {}", dst);
+              }
 
-              // ln -s "$f" "$dst" 와 동일
-              Files.createSymbolicLink(dst, f.toAbsolutePath());
+              try {
+                // 하드링크 생성 (dst가 새 파일로 생기지만 inode는 f와 동일)
+                Files.createLink(dst, f);
+                hardlinksMade++;
+                log.debug("created hardlink: {} => {}", dst, f);
+              } catch (IOException e) {
+                // 여기서 바로 실패시키면 “tmp는 만들었는데 내용은 0개” 같은 상태를 방지할 수 있음
+                log.error("FAILED create hardlink: {} => {}", dst, f, e);
+                throw e;
+              }
             }
           }
         }
       }
     }
 
+    if (hardlinksMade == 0) {
+      throw new IOException(
+          "No hardlinks created. regularFiles="
+              + regularFiles
+              + ", scannedDirs="
+              + scannedDirs
+              + ", noDir="
+              + noDir);
+    }
+
     log.info("tmp dataset created: {}", tmp);
-    return tmp;
+    log.info(
+        "summary: scannedDirs={}, noDir={}, regularFiles={}, hardlinksMade={}",
+        scannedDirs,
+        noDir,
+        regularFiles,
+        hardlinksMade);
+
+    return uid;
+  }
+
+  private static Path toPath(String p) {
+    if (p.startsWith("~/")) {
+      return Paths.get(System.getProperty("user.home")).resolve(p.substring(2)).normalize();
+    }
+    return Paths.get(p).toAbsolutePath().normalize();
   }
 }

src/main/java/com/kamco/cd/training/postgres/core/DatasetCoreService.java

@@ -246,4 +246,8 @@ public class DatasetCoreService
   public void insertDatasetValObj(DatasetObjRegDto objRegDto) {
     datasetObjRepository.insertDatasetValObj(objRegDto);
   }
+
+  public Long findDatasetByUidExistsCnt(String uid) {
+    return datasetRepository.findDatasetByUidExistsCnt(uid);
+  }
 }

src/main/java/com/kamco/cd/training/postgres/core/ModelTrainJobCoreService.java

@@ -5,6 +5,7 @@ import com.kamco.cd.training.postgres.repository.train.ModelTrainJobRepository;
 import com.kamco.cd.training.train.dto.ModelTrainJobDto;
 import java.time.ZonedDateTime;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -104,4 +105,16 @@ public class ModelTrainJobCoreService {
     job.setStatusCd("STOPPED");
     job.setFinishedDttm(ZonedDateTime.now());
   }
+
+  @Transactional
+  public void updateEpoch(String containerName, Integer epoch) {
+    ModelTrainJobEntity job =
+        modelTrainJobRepository
+            .findByContainerName(containerName)
+            .orElseThrow(() -> new IllegalArgumentException("Job not found: " + containerName));
+
+    job.setCurrentEpoch(epoch);
+
+    if (Objects.equals(job.getTotalEpoch(), epoch)) {}
+  }
 }

src/main/java/com/kamco/cd/training/postgres/repository/dataset/DatasetRepositoryCustom.java

@@ -24,4 +24,6 @@ public interface DatasetRepositoryCustom {
   Long insertDatasetMngData(DatasetMngRegDto mngRegDto);
 
   List<String> findDatasetUid(List<Long> datasetIds);
+
+  Long findDatasetByUidExistsCnt(String uid);
 }

src/main/java/com/kamco/cd/training/postgres/repository/dataset/DatasetRepositoryImpl.java

@@ -247,4 +247,13 @@ public class DatasetRepositoryImpl implements DatasetRepositoryCustom {
   public List<String> findDatasetUid(List<Long> datasetIds) {
     return queryFactory.select(dataset.uid).from(dataset).where(dataset.id.in(datasetIds)).fetch();
   }
+
+  @Override
+  public Long findDatasetByUidExistsCnt(String uid) {
+    return queryFactory
+        .select(dataset.id.count())
+        .from(dataset)
+        .where(dataset.uid.eq(uid))
+        .fetchOne();
+  }
 }

src/main/java/com/kamco/cd/training/postgres/repository/model/ModelDatasetMappRepositoryImpl.java

@@ -16,10 +16,10 @@ public class ModelDatasetMappRepositoryImpl implements ModelDatasetMappRepositor
 
   @Override
   public List<ModelDatasetMappEntity> findByModelUid(Long modelId) {
-    queryFactory
+    return queryFactory
         .select(modelDatasetMappEntity)
         .from(modelDatasetMappEntity)
-        .where(modelDatasetMappEntity.modelUid.eq(modelId));
-    return List.of();
+        .where(modelDatasetMappEntity.modelUid.eq(modelId))
+        .fetch();
   }
 }

src/main/java/com/kamco/cd/training/postgres/repository/model/ModelMngRepositoryImpl.java

@@ -39,7 +39,11 @@ public class ModelMngRepositoryImpl implements ModelMngRepositoryCustom {
     BooleanBuilder builder = new BooleanBuilder();
 
     if (req.getStatus() != null && !req.getStatus().isEmpty()) {
-      builder.and(modelMasterEntity.statusCd.eq(req.getStatus()));
+      builder.and(
+          modelMasterEntity
+              .step1State
+              .eq(req.getStatus())
+              .or(modelMasterEntity.step2State.eq(req.getStatus())));
     }
 
     if (req.getModelNo() != null && !req.getModelNo().isEmpty()) {

src/main/java/com/kamco/cd/training/postgres/repository/train/ModelTestMetricsJobRepositoryImpl.java

@@ -42,7 +42,10 @@ public class ModelTestMetricsJobRepositoryImpl extends QuerydslRepositorySupport
     return queryFactory
         .select(
             Projections.constructor(
-                ResponsePathDto.class, modelMasterEntity.id, modelMasterEntity.responsePath))
+                ResponsePathDto.class,
+                modelMasterEntity.id,
+                modelMasterEntity.responsePath,
+                modelMasterEntity.uuid))
         .from(modelMasterEntity)
         .where(
             modelMasterEntity.step2EndDttm.isNotNull(),

src/main/java/com/kamco/cd/training/postgres/repository/train/ModelTrainJobRepositoryCustom.java

@@ -7,4 +7,6 @@ public interface ModelTrainJobRepositoryCustom {
   int findMaxAttemptNo(Long modelId);
 
   Optional<ModelTrainJobEntity> findLatestByModelId(Long modelId);
+
+  Optional<ModelTrainJobEntity> findByContainerName(String containerName);
 }

src/main/java/com/kamco/cd/training/postgres/repository/train/ModelTrainJobRepositoryImpl.java

@@ -40,4 +40,18 @@ public class ModelTrainJobRepositoryImpl implements ModelTrainJobRepositoryCusto
 
     return Optional.ofNullable(job);
   }
+
+  @Override
+  public Optional<ModelTrainJobEntity> findByContainerName(String containerName) {
+    QModelTrainJobEntity j = QModelTrainJobEntity.modelTrainJobEntity;
+
+    ModelTrainJobEntity job =
+        queryFactory
+            .selectFrom(j)
+            .where(j.containerName.eq(containerName))
+            .orderBy(j.id.desc())
+            .fetchFirst();
+
+    return Optional.ofNullable(job);
+  }
 }

src/main/java/com/kamco/cd/training/postgres/repository/train/ModelTrainMetricsJobRepositoryImpl.java

@@ -29,7 +29,10 @@ public class ModelTrainMetricsJobRepositoryImpl extends QuerydslRepositorySuppor
     return queryFactory
         .select(
             Projections.constructor(
-                ResponsePathDto.class, modelMasterEntity.id, modelMasterEntity.responsePath))
+                ResponsePathDto.class,
+                modelMasterEntity.id,
+                modelMasterEntity.responsePath,
+                modelMasterEntity.uuid))
         .from(modelMasterEntity)
         .where(
             modelMasterEntity.step1EndDttm.isNotNull(),

src/main/java/com/kamco/cd/training/train/dto/ModelTrainMetricsDto.java

@@ -1,6 +1,7 @@
 package com.kamco.cd.training.train.dto;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.UUID;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -17,5 +18,6 @@ public class ModelTrainMetricsDto {
 
     private Long modelId;
     private String responsePath;
+    private UUID uuid;
   }
 }

src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java

@@ -1,5 +1,6 @@
 package com.kamco.cd.training.train.service;
 
+import com.kamco.cd.training.postgres.core.ModelTrainJobCoreService;
 import com.kamco.cd.training.train.dto.EvalRunRequest;
 import com.kamco.cd.training.train.dto.TrainRunRequest;
 import com.kamco.cd.training.train.dto.TrainRunResult;
@@ -9,14 +10,17 @@ import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import lombok.RequiredArgsConstructor;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
 @Log4j2
 @Service
+@RequiredArgsConstructor
 public class DockerTrainService {
 
   // 실행할 Docker 이미지명
@@ -43,6 +47,8 @@ public class DockerTrainService {
   @Value("${train.docker.ipcHost:true}")
   private boolean ipcHost;
 
+  private final ModelTrainJobCoreService modelTrainJobCoreService;
+
   /** Docker 학습 컨테이너를 동기 실행 - 요청 스레드에서 docker run 실행 - 컨테이너 종료까지 대기 - stdout/stderr 로그 수집 후 결과 반환 */
   public TrainRunResult runTrainSync(TrainRunRequest req, String containerName) throws Exception {
 
@@ -61,7 +67,11 @@ public class DockerTrainService {
     // 로그는 별도 스레드에서 읽기 (메인 스레드가 readLine에 안 걸리게)
     StringBuilder logBuilder = new StringBuilder();
 
-    Pattern epochPattern = Pattern.compile("(?i)\\bepoch\\s*\\[?(\\d+)\\s*/\\s*(\\d+)\\]?\\b");
+    Pattern epochPattern = Pattern.compile("Epoch\\(train\\)\\s+\\[(\\d+)\\]\\[(\\d+)/(\\d+)\\]");
+
+    // 너무 잦은 업데이트 방지용
+    AtomicInteger lastEpoch = new AtomicInteger(0);
+    AtomicInteger lastIter = new AtomicInteger(0);
 
     Thread logThread =
         new Thread(
@@ -73,23 +83,40 @@ public class DockerTrainService {
                 String line;
                 while ((line = br.readLine()) != null) {
 
-                  // 1) 로그 누적
                   synchronized (logBuilder) {
                     logBuilder.append(line).append('\n');
                   }
 
-                  // 2) epoch 감지 + DB 업데이트
                   Matcher m = epochPattern.matcher(line);
                   if (m.find()) {
-                    int currentEpoch = Integer.parseInt(m.group(1));
-                    int totalEpoch = Integer.parseInt(m.group(2));
+                    int epoch = Integer.parseInt(m.group(1));
+                    int iter = Integer.parseInt(m.group(2));
+                    int totalIter = Integer.parseInt(m.group(3));
 
-                    log.info("[EPOCH] container={} {}/{}", containerName, currentEpoch, totalEpoch);
+                    // (선택) maxEpochs는 req에서 알고 있으니 req.getEpochs() 같은 걸로 사용
+                    int maxEpochs = req.getEpochs() != null ? req.getEpochs() : 0;
 
-                    // TODO 실행중인 에폭 저장 필요하면 만들어야함
-                    // TODO 하지만 여기서 트랜젝션 걸리는 db 작업하면 안좋다고하는데..?
-                    //                modelTrainMngCoreService.updateCurrentEpoch(modelId,
-                    // currentEpoch, totalEpoch);
+                    // 쓰로틀링: 에폭 끝 or 10 iter마다
+                    boolean shouldUpdate = (iter == totalIter) || (iter % 10 == 0);
+
+                    // 중복 방지
+                    if (shouldUpdate) {
+                      int prevEpoch = lastEpoch.get();
+                      int prevIter = lastIter.get();
+                      if (epoch != prevEpoch || iter != prevIter) {
+                        lastEpoch.set(epoch);
+                        lastIter.set(iter);
+
+                        log.info(
+                            "[TRAIN] container={} epoch={} iter={}/{}",
+                            containerName,
+                            epoch,
+                            iter,
+                            totalIter);
+
+                        modelTrainJobCoreService.updateEpoch(containerName, epoch);
+                      }
+                    }
                   }
                 }
               } catch (Exception e) {
@@ -97,21 +124,6 @@ public class DockerTrainService {
               }
             },
             "train-log-" + containerName);
-    //        new Thread(
-    //            () -> {
-    //              try (BufferedReader br =
-    //                  new BufferedReader(
-    //                      new InputStreamReader(p.getInputStream(), StandardCharsets.UTF_8))) {
-    //                String line;
-    //                while ((line = br.readLine()) != null) {
-    //                  synchronized (log) {
-    //                    log.append(line).append('\n');
-    //                  }
-    //                }
-    //              } catch (Exception ignored) {
-    //              }
-    //            },
-    //            "train-log-" + containerName);
 
     logThread.setDaemon(true);
     logThread.start();
@@ -169,7 +181,7 @@ public class DockerTrainService {
 
     // 컨테이너 이름 지정
     c.add("--name");
-    c.add(containerName + "-" + req.getUuid().substring(0, 8));
+    c.add(containerName);
 
     // 실행 종료 시 자동 삭제
     c.add("--rm");
@@ -206,7 +218,7 @@ public class DockerTrainService {
 
     // 요청/결과 디렉토리 볼륨 마운트
     c.add("-v");
-    c.add(requestDir + ":/data");
+    c.add("/home/kcomu/data" + "/tmp:/data");
     c.add("-v");
     c.add(responseDir + ":/checkpoints");
 
@@ -264,12 +276,12 @@ public class DockerTrainService {
 
     // ===== Augmentation =====
     addArg(c, "--rot-prob", req.getRotProb());
-    addArg(c, "--rot-degree", req.getRotDegree());
+    // addArg(c, "--rot-degree", req.getRotDegree()); // TODO AI 수정되면 주석 해제
     addArg(c, "--flip-prob", req.getFlipProb());
     addArg(c, "--exchange-prob", req.getExchangeProb());
     addArg(c, "--brightness-delta", req.getBrightnessDelta());
-    addArg(c, "--contrast-range", req.getContrastRange());
-    addArg(c, "--saturation-range", req.getSaturationRange());
+    // addArg(c, "--contrast-range", req.getContrastRange()); // TODO AI 수정되면 주석 해제
+    // addArg(c, "--saturation-range", req.getSaturationRange()); // TODO AI 수정되면 주석 해제
     addArg(c, "--hue-delta", req.getHueDelta());
 
     addArg(c, "--resume-from", req.getResumeFrom());
@@ -377,7 +389,7 @@ public class DockerTrainService {
     c.add("docker");
     c.add("run");
     c.add("--name");
-    c.add(containerName + "=" + req.getUuid().substring(0, 8));
+    c.add(containerName);
     c.add("--rm");
 
     c.add("--gpus");

src/main/java/com/kamco/cd/training/train/service/ModelTestMetricsJobService.java

@@ -27,6 +27,10 @@ public class ModelTestMetricsJobService {
   @Value("${spring.profiles.active}")
   private String profile;
 
+  // 학습 결과가 저장될 호스트 디렉토리
+  @Value("${train.docker.responseDir}")
+  private String responseDir;
+
   /**
    * 실행중인 profile
    *
@@ -51,7 +55,7 @@ public class ModelTestMetricsJobService {
 
     for (ResponsePathDto modelInfo : modelIds) {
 
-      String testPath = modelInfo.getResponsePath() + "/metrics/test.csv";
+      String testPath = responseDir + "/" + modelInfo.getUuid() + "/metrics/test.csv";
       try (BufferedReader reader =
           Files.newBufferedReader(Paths.get(testPath), StandardCharsets.UTF_8); ) {
 

src/main/java/com/kamco/cd/training/train/service/ModelTrainMetricsJobService.java

@@ -55,7 +55,7 @@ public class ModelTrainMetricsJobService {
 
     for (ResponsePathDto modelInfo : modelIds) {
 
-      String trainPath = responseDir + "{uuid}/metrics/train.csv"; // TODO
+      String trainPath = responseDir + "/" + modelInfo.getUuid() + "/metrics/train.csv";
       try (BufferedReader reader =
           Files.newBufferedReader(Paths.get(trainPath), StandardCharsets.UTF_8); ) {
 
@@ -80,7 +80,7 @@ public class ModelTrainMetricsJobService {
         throw new RuntimeException(e);
       }
 
-      String validationPath = modelInfo.getResponsePath() + "/metrics/val.csv";
+      String validationPath = responseDir + "/" + modelInfo.getUuid() + "/metrics/val.csv";
       try (BufferedReader reader =
           Files.newBufferedReader(Paths.get(validationPath), StandardCharsets.UTF_8); ) {
 

src/main/java/com/kamco/cd/training/train/service/TrainJobService.java

@@ -226,9 +226,9 @@ public class TrainJobService {
 
     try {
       // 데이터셋 심볼링크 생성
-      Path path = tmpDatasetService.buildTmpDatasetSymlink(raw, uids);
+      String pathUid = tmpDatasetService.buildTmpDatasetSymlink(raw, uids);
       ModelTrainMngDto.UpdateReq updateReq = new ModelTrainMngDto.UpdateReq();
-      updateReq.setRequestPath(path.toString());
+      updateReq.setRequestPath(pathUid);
       modelTrainMngCoreService.updateModelMaster(modelId, updateReq);
     } catch (IOException e) {
       throw new RuntimeException(e);