[GitHub] [hadoop] virajjasani commented on a diff in pull request #5432: HDFS-16935. Fix TestFsDatasetImpl#testReportBadBlocks

["virajjasani (via GitHub)" <gi...@apache.org>]

virajjasani commented on code in PR #5432:
URL: https://github.com/apache/hadoop/pull/5432#discussion_r1117881428


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hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsDatasetImpl.java:
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@@ -1101,15 +1099,12 @@ public void testReportBadBlocks() throws Exception {
 
       block = DFSTestUtil.getFirstBlock(fs, filePath);
       // Test for the overloaded method reportBadBlocks
-      dataNode.reportBadBlocks(block, dataNode.getFSDataset()
-          .getFsVolumeReferences().get(0));
-      Thread.sleep(3000);
-      BlockManagerTestUtil.updateState(cluster.getNamesystem()
-          .getBlockManager());
-      // Verify the bad block has been reported to namenode
-      Assert.assertEquals(1, cluster.getNamesystem().getCorruptReplicaBlocks());
-    } finally {
-      cluster.shutdown();
+      dataNode.reportBadBlocks(block, dataNode.getFSDataset().getFsVolumeReferences().get(0));
+      GenericTestUtils.waitFor(() -> {
+        BlockManagerTestUtil.updateState(cluster.getNamesystem().getBlockManager());
+        // Verify the bad block has been reported to namenode
+        return 1 == cluster.getNamesystem().getCorruptReplicaBlocks();
+      }, 100, 10000, "Corrupted replica blocks could not be found");

Review Comment:
   Oh that should be a better option actually



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