[GitHub] [gobblin] Will-Lo commented on a diff in pull request #3602: [GOBBLIN-1743] Ensure GobblinTaskRunner works without Yarn use

[GitBox <gi...@apache.org>]

Will-Lo commented on code in PR #3602:
URL: https://github.com/apache/gobblin/pull/3602#discussion_r1025865028


##########
gobblin-cluster/src/main/java/org/apache/gobblin/cluster/GobblinTaskRunner.java:
##########
@@ -544,23 +544,24 @@ void connectHelixManagerWithRetry() {
   private void addInstanceTags() {
     HelixManager receiverManager = getReceiverManager();
     if (receiverManager.isConnected()) {
-      // The helix instance associated with this container should be consistent on helix tag
-      List<String> existedTags = receiverManager.getClusterManagmentTool()
-          .getInstanceConfig(this.clusterName, this.helixInstanceName).getTags();
-      Set<String> desiredTags = new HashSet<>(
-          ConfigUtils.getStringList(this.clusterConfig, GobblinClusterConfigurationKeys.HELIX_INSTANCE_TAGS_KEY));
-      if (!desiredTags.isEmpty()) {
-        // Remove tag assignments for the current Helix instance from a previous run
-        for (String tag : existedTags) {
-          if (!desiredTags.contains(tag))
-            receiverManager.getClusterManagmentTool().removeInstanceTag(this.clusterName, this.helixInstanceName, tag);
-          logger.info("Removed unrelated helix tag {} for instance {}", tag, this.helixInstanceName);
+      try {
+        Set<String> desiredTags = new HashSet<>(ConfigUtils.getStringList(this.clusterConfig, GobblinClusterConfigurationKeys.HELIX_INSTANCE_TAGS_KEY));
+        if (!desiredTags.isEmpty()) {
+          // The helix instance associated with this container should be consistent on helix tag
+          List<String> existedTags =
+              receiverManager.getClusterManagmentTool().getInstanceConfig(this.clusterName, this.helixInstanceName).getTags();
+          // Remove tag assignments for the current Helix instance from a previous run
+          for (String tag : existedTags) {
+            if (!desiredTags.contains(tag))
+              receiverManager.getClusterManagmentTool().removeInstanceTag(this.clusterName, this.helixInstanceName, tag);
+            logger.info("Removed unrelated helix tag {} for instance {}", tag, this.helixInstanceName);
+          }
+          desiredTags.forEach(desiredTag -> receiverManager.getClusterManagmentTool().addInstanceTag(this.clusterName, this.helixInstanceName, desiredTag));
+          logger.info("Actual tags binding " + receiverManager.getClusterManagmentTool().getInstanceConfig(this.clusterName, this.helixInstanceName).getTags());
         }
-        desiredTags.forEach(desiredTag -> receiverManager.getClusterManagmentTool()
-            .addInstanceTag(this.clusterName, this.helixInstanceName, desiredTag));
+      } catch (HelixException e) {
+        logger.warn("some error with helix get instance config that we're ignoring and moving on: {}", e);

Review Comment:
   Can we reword this error to provide more context on when it's safe and unsafe? i.e.
   ```
   "Error with Helix getting instance config tags used in YARN cluster configuration. Will ignore and attempt to move on"
   ```



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