Examples with ExitException org.apache.hadoop.util.ExitUtil.ExitException used on opensource projects

Example 1 with ExitException

use of org.apache.hadoop.util.ExitUtil.ExitException in project hadoop by apache.

the class TestFailureOfSharedDir method testFailureOfSharedDir.

/**
   * Test that marking the shared edits dir as being "required" causes the NN to
   * fail if that dir can't be accessed.
   */
@Test
public void testFailureOfSharedDir() throws Exception {
    Configuration conf = new Configuration();
    conf.setLong(DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_KEY, 2000);
    // The shared edits dir will automatically be marked required.
    MiniDFSCluster cluster = null;
    File sharedEditsDir = null;
    try {
        cluster = new MiniDFSCluster.Builder(conf).nnTopology(MiniDFSNNTopology.simpleHATopology()).numDataNodes(0).checkExitOnShutdown(false).build();
        cluster.waitActive();
        cluster.transitionToActive(0);
        FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
        assertTrue(fs.mkdirs(new Path("/test1")));
        // Blow away the shared edits dir.
        URI sharedEditsUri = cluster.getSharedEditsDir(0, 1);
        sharedEditsDir = new File(sharedEditsUri);
        assertEquals(0, FileUtil.chmod(sharedEditsDir.getAbsolutePath(), "-w", true));
        Thread.sleep(conf.getLong(DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_KEY, DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_DEFAULT) * 2);
        NameNode nn1 = cluster.getNameNode(1);
        assertTrue(nn1.isStandbyState());
        assertFalse("StandBy NameNode should not go to SafeMode on resource unavailability", nn1.isInSafeMode());
        NameNode nn0 = cluster.getNameNode(0);
        try {
            // Make sure that subsequent operations on the NN fail.
            nn0.getRpcServer().rollEditLog();
            fail("Succeeded in rolling edit log despite shared dir being deleted");
        } catch (ExitException ee) {
            GenericTestUtils.assertExceptionContains("finalize log segment 1, 3 failed for required journal", ee);
        }
        // dir didn't roll. Regression test for HDFS-2874.
        for (URI editsUri : cluster.getNameEditsDirs(0)) {
            if (editsUri.equals(sharedEditsUri)) {
                continue;
            }
            File editsDir = new File(editsUri.getPath());
            File curDir = new File(editsDir, "current");
            GenericTestUtils.assertGlobEquals(curDir, "edits_.*", NNStorage.getInProgressEditsFileName(1));
        }
    } finally {
        if (sharedEditsDir != null) {
            // without this test cleanup will fail
            FileUtil.chmod(sharedEditsDir.getAbsolutePath(), "+w", true);
        }
        if (cluster != null) {
            cluster.shutdown();
        }
    }
}

Example 2 with ExitException

use of org.apache.hadoop.util.ExitUtil.ExitException in project hadoop by apache.

the class TestNativeLibraryChecker method expectOutput.

private void expectOutput(String[] args) {
    ExitUtil.disableSystemExit();
    ByteArrayOutputStream outContent = new ByteArrayOutputStream();
    PrintStream originalPs = System.out;
    System.setOut(new PrintStream(outContent));
    try {
        NativeLibraryChecker.main(args);
    } catch (ExitException e) {
        ExitUtil.resetFirstExitException();
    } finally {
        if (Shell.WINDOWS) {
            assertEquals(outContent.toString().indexOf("winutils: true") != -1, true);
        }
        if (NativeCodeLoader.isNativeCodeLoaded()) {
            assertEquals(outContent.toString().indexOf("hadoop:  true") != -1, true);
        }
        System.setOut(originalPs);
    }
}

Example 3 with ExitException

use of org.apache.hadoop.util.ExitUtil.ExitException in project hadoop by apache.

the class TestClusterId method testFormatWithoutForceEnterYes.

/**
   * Test namenode format with -format option when a non empty name directory
   * exists. Enter Y when prompted and the format should succeed.
   * 
   * @throws IOException
   * @throws InterruptedException
   */
@Test
public void testFormatWithoutForceEnterYes() throws IOException, InterruptedException {
    // we check for a non empty dir, so create a child path
    File data = new File(hdfsDir, "file");
    if (!data.mkdirs()) {
        fail("Failed to create dir " + data.getPath());
    }
    // capture the input stream
    InputStream origIn = System.in;
    ByteArrayInputStream bins = new ByteArrayInputStream("Y\n".getBytes());
    System.setIn(bins);
    String[] argv = { "-format" };
    try {
        NameNode.createNameNode(argv, config);
        fail("createNameNode() did not call System.exit()");
    } catch (ExitException e) {
        assertEquals("Format should have succeeded", 0, e.status);
    }
    System.setIn(origIn);
    String cid = getClusterId(config);
    assertTrue("Didn't get new ClusterId", (cid != null && !cid.equals("")));
}

Example 4 with ExitException

use of org.apache.hadoop.util.ExitUtil.ExitException in project hadoop by apache.

the class TestStateTransitionFailure method testFailureToTransitionCausesShutdown.

/**
   * Ensure that a failure to fully transition to the active state causes a
   * shutdown of the NameNode.
   */
@Test
public void testFailureToTransitionCausesShutdown() throws IOException {
    MiniDFSCluster cluster = null;
    try {
        Configuration conf = new Configuration();
        // Set an illegal value for the trash emptier interval. This will cause
        // the NN to fail to transition to the active state.
        conf.setLong(CommonConfigurationKeys.FS_TRASH_INTERVAL_KEY, -1);
        cluster = new MiniDFSCluster.Builder(conf).nnTopology(MiniDFSNNTopology.simpleHATopology()).numDataNodes(0).checkExitOnShutdown(false).build();
        cluster.waitActive();
        try {
            cluster.transitionToActive(0);
            fail("Transitioned to active but should not have been able to.");
        } catch (ExitException ee) {
            assertExceptionContains("Cannot start trash emptier with negative interval", ee);
        }
    } finally {
        if (cluster != null) {
            cluster.shutdown();
        }
    }
}

Example 5 with ExitException

use of org.apache.hadoop.util.ExitUtil.ExitException in project hadoop by apache.

the class TestCheckpoint method testTooManyEditReplayFailures.

/*
   * Simulate 2NN exit due to too many merge failures.
   */
@Test(timeout = 30000)
public void testTooManyEditReplayFailures() throws IOException {
    Configuration conf = new HdfsConfiguration();
    conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_MAX_RETRIES_KEY, 1);
    conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_PERIOD_KEY, 1);
    FSDataOutputStream fos = null;
    SecondaryNameNode secondary = null;
    MiniDFSCluster cluster = null;
    FileSystem fs = null;
    try {
        cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDatanodes).checkExitOnShutdown(false).build();
        cluster.waitActive();
        fs = cluster.getFileSystem();
        fos = fs.create(new Path("tmpfile0"));
        fos.write(new byte[] { 0, 1, 2, 3 });
        // Cause merge to fail in next checkpoint.
        Mockito.doThrow(new IOException("Injecting failure during merge")).when(faultInjector).duringMerge();
        secondary = startSecondaryNameNode(conf);
        secondary.doWork();
        // Fail if we get here.
        fail("2NN did not exit.");
    } catch (ExitException ee) {
        // ignore
        ExitUtil.resetFirstExitException();
        assertEquals("Max retries", 1, secondary.getMergeErrorCount() - 1);
    } finally {
        if (fs != null) {
            fs.close();
        }
        cleanup(secondary);
        secondary = null;
        cleanup(cluster);
        cluster = null;
        Mockito.reset(faultInjector);
    }
}