Rename Metrics

Author: xichen01

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OMMetrics.java

@@ -821,7 +821,7 @@ public void incNumKeyDeletes() {
     numKeyDeletes.incr();
   }
 
-  public void incNumKeyDeletesWithoutOps() {
+  public void incNumKeyDeletesInternal() {
     numKeyDeletes.incr();
   }
 

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/key/OMDirectoriesPurgeRequestWithFSO.java

@@ -112,7 +112,7 @@ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager, Execut
             lockSet.add(volBucketPair);
           }
           omMetrics.decNumKeys();
-          omMetrics.incNumKeyDeletesWithoutOps();
+          omMetrics.incNumKeyDeletesInternal();
           numSubDirMoved++;
           OmBucketInfo omBucketInfo = getBucketInfo(omMetadataManager,
               volumeName, bucketName);
@@ -156,7 +156,7 @@ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager, Execut
           }
 
           omMetrics.decNumKeys();
-          omMetrics.incNumKeyDeletesWithoutOps();
+          omMetrics.incNumKeyDeletesInternal();
           numSubFilesMoved++;
           OmBucketInfo omBucketInfo = getBucketInfo(omMetadataManager,
               volumeName, bucketName);