Will-Lo commented on code in PR #4030:
URL: https://github.com/apache/gobblin/pull/4030#discussion_r1755520391


##########
gobblin-temporal/src/main/java/org/apache/gobblin/temporal/yarn/YarnService.java:
##########
@@ -484,12 +487,29 @@ private void requestContainer(Optional<String> 
preferredNode, Resource resource)
   protected ContainerLaunchContext newContainerLaunchContext(ContainerInfo 
containerInfo)
       throws IOException {
     Path appWorkDir = 
GobblinClusterUtils.getAppWorkDirPathFromConfig(this.config, this.fs, 
this.applicationName, this.applicationId);
+    Path containerJarsUnsharedDir = new Path(appWorkDir, 
GobblinYarnConfigurationKeys.CONTAINER_WORK_DIR_NAME);
+    Path jarCacheDir = this.jarCacheEnabled ? 
YarnHelixUtils.getJarPathCacheAndCleanIfNeeded(this.config, this.fs) : 
appWorkDir;
+    Path containerJarsCachedDir = new Path(jarCacheDir, 
GobblinYarnConfigurationKeys.CONTAINER_WORK_DIR_NAME);
+    LOGGER.info("Container cached jars root dir: " + containerJarsCachedDir);
+    LOGGER.info("Container uncached jars root dir: " + 
containerJarsUnsharedDir);
     Path containerWorkDir = new Path(appWorkDir, 
GobblinYarnConfigurationKeys.CONTAINER_WORK_DIR_NAME);
 
-    Map<String, LocalResource> resourceMap = Maps.newHashMap();
 
+    Map<String, LocalResource> resourceMap = Maps.newHashMap();
+    // Always fetch any jars from the appWorkDir for any potential snapshot 
jars
     addContainerLocalResources(new Path(appWorkDir, 
GobblinYarnConfigurationKeys.LIB_JARS_DIR_NAME), resourceMap);
-    addContainerLocalResources(new Path(containerWorkDir, 
GobblinYarnConfigurationKeys.APP_JARS_DIR_NAME), resourceMap);
+    if 
(this.config.hasPath(GobblinYarnConfigurationKeys.CONTAINER_FILES_LOCAL_KEY)) {
+      addContainerLocalResources(new Path(containerJarsUnsharedDir, 
GobblinYarnConfigurationKeys.APP_JARS_DIR_NAME),
+          resourceMap);
+    }
+    if (this.jarCacheEnabled) {
+      addContainerLocalResources(new Path(jarCacheDir, 
GobblinYarnConfigurationKeys.LIB_JARS_DIR_NAME), resourceMap);
+      if 
(this.config.hasPath(GobblinYarnConfigurationKeys.CONTAINER_FILES_LOCAL_KEY)) {

Review Comment:
   Oops should have used `gobblin.yarn.container.jars` key



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