[GitHub] [hadoop] jianghuazhu commented on a change in pull request #3544: HDFS-16269.[Fix] Improve NNThroughputBenchmark#blockReport operation.

[GitBox]

jianghuazhu commented on a change in pull request #3544:
URL: https://github.com/apache/hadoop/pull/3544#discussion_r739952380



##########
File path: 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNNThroughputBenchmark.java
##########
@@ -166,4 +166,25 @@ public void testNNThroughputForAppendOp() throws Exception 
{
       }
     }
   }
+
+  /**
+   * This test runs {@link NNThroughputBenchmark} against a mini DFS cluster
+   * for block report operation.
+   */
+  @Test(timeout = 120000)
+  public void testNNThroughputForBlockReportOp() throws Exception {
+    final Configuration conf = new HdfsConfiguration();
+    conf.setInt(DFSConfigKeys.DFS_NAMENODE_MIN_BLOCK_SIZE_KEY, 16);
+    conf.setInt(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 16);
+    try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).
+        numDataNodes(3).build()) {
+      cluster.waitActive();
+      final Configuration benchConf = new HdfsConfiguration();
+      benchConf.setInt(DFSConfigKeys.DFS_NAMENODE_MIN_BLOCK_SIZE_KEY, 16);
+      benchConf.setInt(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 16);
+      NNThroughputBenchmark.runBenchmark(benchConf,
+          new String[]{"-fs", cluster.getURI().toString(), "-op",
+          "blockReport", "-datanodes", "3", "-reports", "2"});

Review comment:
       Sorry, the information shown here cannot fully demonstrate my thoughts.
   I will submit some updates.
   
![image](https://user-images.githubusercontent.com/6416939/139640085-b474b30b-a117-453e-bc90-520074b5b9b3.png)
   




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