saxenapranav commented on code in PR #6314:
URL: https://github.com/apache/hadoop/pull/6314#discussion_r1522660653


##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsClient.java:
##########
@@ -1411,6 +1448,97 @@ protected AccessTokenProvider getTokenProvider() {
     return tokenProvider;
   }
 
+  public AzureBlobFileSystem getMetricFilesystem() throws IOException {
+    if (metricFs == null) {
+      try {
+        Configuration metricConfig = abfsConfiguration.getRawConfiguration();
+        String metricAccountKey = 
metricConfig.get(FS_AZURE_METRIC_ACCOUNT_KEY);
+        final String abfsMetricUrl = metricConfig.get(FS_AZURE_METRIC_URI);
+        if (abfsMetricUrl == null) {
+          return null;
+        }
+        metricConfig.set(FS_AZURE_ACCOUNT_KEY_PROPERTY_NAME, metricAccountKey);
+        metricConfig.set(AZURE_CREATE_REMOTE_FILESYSTEM_DURING_INITIALIZATION, 
"false");
+        URI metricUri;
+        metricUri = new URI(FileSystemUriSchemes.ABFS_SCHEME, abfsMetricUrl, 
null, null, null);
+        metricFs = (AzureBlobFileSystem) FileSystem.newInstance(metricUri, 
metricConfig);

Review Comment:
   Distinct configuration is still required for the metricURI and the cred for 
the metric-storage FS, which is not negated in the comment.
   Comment was about creating a full fileSystem object to just hit one uri and 
about the implementation bug.
   
   +1 on metricUri and cred. Current impl at head commit 
https://github.com/apache/hadoop/pull/6314/commits/5696ba64f1d90eadc5e40d8e70808743a3174819
 looks amazing!



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