xinglin commented on code in PR #4872:
URL: https://github.com/apache/hadoop/pull/4872#discussion_r990733465
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hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeRpcServer.java:
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@@ -158,6 +164,49 @@ public void testNamenodeRpcClientIpProxyWithFailBack()
throws Exception {
}
}
+ @Test
+ @Timeout(30000)
+ public void testObserverHandleAddBlock() throws Exception {
+ MiniQJMHACluster qjmhaCluster = null;
+ try {
+ String baseDir = GenericTestUtils.getRandomizedTempPath();
+ Configuration conf = new HdfsConfiguration();
+ MiniQJMHACluster.Builder builder = new
MiniQJMHACluster.Builder(conf).setNumNameNodes(3);
+ builder.getDfsBuilder().numDataNodes(3);
+ qjmhaCluster = builder.baseDir(baseDir).build();
+ MiniDFSCluster dfsCluster = qjmhaCluster.getDfsCluster();
+ dfsCluster.waitActive();
+ dfsCluster.transitionToActive(0);
+ dfsCluster.transitionToObserver(2);
+
+ NameNode activeNN = dfsCluster.getNameNode(0);
+ NameNode observerNN = dfsCluster.getNameNode(2);
+
+ // Stop the editLogTailer of Observer NameNode
+ observerNN.getNamesystem().getEditLogTailer().stop();
+ DistributedFileSystem dfs = dfsCluster.getFileSystem(0);
+
+ Path testPath = new Path("/testObserverHandleAddBlock/file.txt");
+ try (FSDataOutputStream ignore = dfs.create(testPath)) {
+ HdfsFileStatus fileStatus =
activeNN.getRpcServer().getFileInfo(testPath.toUri().getPath());
+ assertNotNull(fileStatus);
+
assertNull(observerNN.getRpcServer().getFileInfo(testPath.toUri().getPath()));
+
+ LambdaTestUtils.intercept(StandbyException.class, () -> {
Review Comment:
should we intercept ObserverRetryOnActiveException here, instead of
StandbyException, given we are sure we are operating on an observerNN?
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