ayushtkn commented on a change in pull request #2746:
URL: https://github.com/apache/hadoop/pull/2746#discussion_r588195715
##
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFileTruncate.java
##
@@ -218,6 +219,65 @@ public void testSnapshotTruncateThenDeleteSnapshot()
throws IOException {
fs.delete(dir, true);
}
+
+ /**
+ * Test truncate twice together on a file
+ */
+ @Test(timeout=9)
+ public void testTruncateTwiceTogether() throws Exception {
+
+Path dir = new Path("/testTruncateTwiceTogether");
+fs.mkdirs(dir);
+final Path p = new Path(dir, "file");
+final byte[] data = new byte[100 * BLOCK_SIZE];
+ThreadLocalRandom.current().nextBytes(data);
+writeContents(data, data.length, p);
+
+DataNodeFaultInjector originInjector = DataNodeFaultInjector.get();
Review comment:
Is this used somewhere?
##
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFileTruncate.java
##
@@ -218,6 +219,65 @@ public void testSnapshotTruncateThenDeleteSnapshot()
throws IOException {
fs.delete(dir, true);
}
+
+ /**
+ * Test truncate twice together on a file
+ */
+ @Test(timeout=9)
+ public void testTruncateTwiceTogether() throws Exception {
+
+Path dir = new Path("/testTruncateTwiceTogether");
+fs.mkdirs(dir);
+final Path p = new Path(dir, "file");
+final byte[] data = new byte[100 * BLOCK_SIZE];
+ThreadLocalRandom.current().nextBytes(data);
+writeContents(data, data.length, p);
+
+DataNodeFaultInjector originInjector = DataNodeFaultInjector.get();
+DataNodeFaultInjector injector = new DataNodeFaultInjector() {
+ @Override
+ public void delay() {
+try {
+ // Bigger than soft lease period.
+ Thread.sleep(65000);
+} catch (InterruptedException e) {
+ e.printStackTrace();
Review comment:
No need to print the trace, if possible add Exception to method
signature and remove this try-catch, else ignore the exception
##
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFileTruncate.java
##
@@ -218,6 +219,65 @@ public void testSnapshotTruncateThenDeleteSnapshot()
throws IOException {
fs.delete(dir, true);
}
+
+ /**
+ * Test truncate twice together on a file
+ */
+ @Test(timeout=9)
+ public void testTruncateTwiceTogether() throws Exception {
+
+Path dir = new Path("/testTruncateTwiceTogether");
+fs.mkdirs(dir);
+final Path p = new Path(dir, "file");
+final byte[] data = new byte[100 * BLOCK_SIZE];
+ThreadLocalRandom.current().nextBytes(data);
+writeContents(data, data.length, p);
+
+DataNodeFaultInjector originInjector = DataNodeFaultInjector.get();
+DataNodeFaultInjector injector = new DataNodeFaultInjector() {
+ @Override
+ public void delay() {
+try {
+ // Bigger than soft lease period.
+ Thread.sleep(65000);
+} catch (InterruptedException e) {
+ e.printStackTrace();
+}
+ }
+};
+// Delay to recovery.
+DataNodeFaultInjector.set(injector);
+
+// Truncate by using different client name.
+Thread t = new Thread(() ->
+{
+ String hdfsCacheDisableKey = "fs.hdfs.impl.disable.cache";
+ boolean originCacheDisable =
+ conf.getBoolean(hdfsCacheDisableKey, false);
+ try {
+conf.setBoolean(hdfsCacheDisableKey, true);
+FileSystem fs1 = FileSystem.get(conf);
+fs1.truncate(p, data.length-1);
+} catch (IOException e) {
+ // ignore
+} finally{
+ conf.setBoolean(hdfsCacheDisableKey, originCacheDisable);
+}
+});
+t.start();
+t.join();
+Thread.sleep(6);
+try {
+ fs.truncate(p, data.length - 2);
+} catch (IOException e) {
+ //GenericTestUtils.assertExceptionContains("is being truncated.", e);
+}
Review comment:
Can use LambdaTestUtils.
```
LambdaTestUtils.intercept(RemoteException.class,
"/testTruncateTwiceTogether/file is being truncated",
() -> fs.truncate(p, data.length - 2));
```
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