[GitHub] [ozone] sokui commented on a diff in pull request #3186: HDDS-5916. Datanodes stuck in leader election in Kubernetes

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

sokui commented on code in PR #3186:
URL: https://github.com/apache/ozone/pull/3186#discussion_r876082865


##########
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/ratis/RatisHelper.java:
##########
@@ -369,6 +384,12 @@ public static Long getMinReplicatedIndex(
         .min(Long::compareTo).orElse(null);
   }
 
+  private static boolean datanodeUseHostName() {
+    return CONF.getBoolean(
+            DFSConfigKeys.DFS_DATANODE_USE_DN_HOSTNAME,
+            DFSConfigKeys.DFS_DATANODE_USE_DN_HOSTNAME_DEFAULT);

Review Comment:
   It seems that we do not have Ozone specific config for datanodes. All datanodes configs are in DFS config. Any suggestion?



##########
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/events/SCMEvents.java:
##########
@@ -157,6 +157,13 @@ public final class SCMEvents {
   public static final TypedEvent<DatanodeDetails> NEW_NODE =
       new TypedEvent<>(DatanodeDetails.class, "New_Node");
 
+  /**
+   * This event will be triggered whenever a datanode is registered with
+   * SCM with a different Ip or host name.
+   */
+  public static final TypedEvent<DatanodeDetails> NODE_IP_OR_HOSTNAME_UPDATE =
+          new TypedEvent<>(DatanodeDetails.class, "Node_Ip_Or_Hostname_Update");

Review Comment:
   sure.



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