steveloughran commented on code in PR #5294:
URL: https://github.com/apache/hadoop/pull/5294#discussion_r1072694913


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java:
##########
@@ -733,7 +733,11 @@ public Object run() throws IOException, 
InterruptedException {
                   + UserGroupInformation.getLoginUser().getUserName() + " to "
                   + remoteId;
               LOG.warn(msg, ex);
-              throw new IOException(msg, ex);
+              throw NetUtils.wrapException(remoteId.getAddress().getHostName(),
+                  remoteId.getAddress().getPort(),
+                  NetUtils.getHostname(),
+                  0,
+                  new IOException(msg, ex));

Review Comment:
   +1 for the change.
   
   ex is only ever an IOException; we should preserve it so that the type 
doesn't get lost in the chain.
   * change the signature of the method to be `IOException ex` and then pass it 
into wrap exception



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