Java Code Examples for org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter#getLeaseRenewalTime()

The following examples show how to use org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter#getLeaseRenewalTime() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: TestHAStateTransitions.java    From hadoop with Apache License 2.0 4 votes vote down vote up 
/**
 * Test for HDFS-2812. Since lease renewals go from the client
 * only to the active NN, the SBN will have out-of-date lease
 * info when it becomes active. We need to make sure we don't
 * accidentally mark the leases as expired when the failover
 * proceeds.
 */
@Test(timeout=120000)
public void testLeasesRenewedOnTransition() throws Exception {
  Configuration conf = new Configuration();
  conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(MiniDFSNNTopology.simpleHATopology())
    .numDataNodes(1)
    .build();
  FSDataOutputStream stm = null;
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  NameNode nn0 = cluster.getNameNode(0);
  NameNode nn1 = cluster.getNameNode(1);

  try {
    cluster.waitActive();
    cluster.transitionToActive(0);
    
    LOG.info("Starting with NN 0 active");

    stm = fs.create(TEST_FILE_PATH);
    long nn0t0 = NameNodeAdapter.getLeaseRenewalTime(nn0, TEST_FILE_STR);
    assertTrue(nn0t0 > 0);
    long nn1t0 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertEquals("Lease should not yet exist on nn1",
        -1, nn1t0);
    
    Thread.sleep(5); // make sure time advances!

    HATestUtil.waitForStandbyToCatchUp(nn0, nn1);
    long nn1t1 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertTrue("Lease should have been created on standby. Time was: " +
        nn1t1, nn1t1 > nn0t0);
        
    Thread.sleep(5); // make sure time advances!
    
    LOG.info("Failing over to NN 1");
    cluster.transitionToStandby(0);
    cluster.transitionToActive(1);
    long nn1t2 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertTrue("Lease should have been renewed by failover process",
        nn1t2 > nn1t1);
  } finally {
    IOUtils.closeStream(stm);
    cluster.shutdown();
  }
}
Example 2
Source File: TestHAStateTransitions.java    From big-c with Apache License 2.0 4 votes vote down vote up 
/**
 * Test for HDFS-2812. Since lease renewals go from the client
 * only to the active NN, the SBN will have out-of-date lease
 * info when it becomes active. We need to make sure we don't
 * accidentally mark the leases as expired when the failover
 * proceeds.
 */
@Test(timeout=120000)
public void testLeasesRenewedOnTransition() throws Exception {
  Configuration conf = new Configuration();
  conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1);
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
    .nnTopology(MiniDFSNNTopology.simpleHATopology())
    .numDataNodes(1)
    .build();
  FSDataOutputStream stm = null;
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  NameNode nn0 = cluster.getNameNode(0);
  NameNode nn1 = cluster.getNameNode(1);

  try {
    cluster.waitActive();
    cluster.transitionToActive(0);
    
    LOG.info("Starting with NN 0 active");

    stm = fs.create(TEST_FILE_PATH);
    long nn0t0 = NameNodeAdapter.getLeaseRenewalTime(nn0, TEST_FILE_STR);
    assertTrue(nn0t0 > 0);
    long nn1t0 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertEquals("Lease should not yet exist on nn1",
        -1, nn1t0);
    
    Thread.sleep(5); // make sure time advances!

    HATestUtil.waitForStandbyToCatchUp(nn0, nn1);
    long nn1t1 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertTrue("Lease should have been created on standby. Time was: " +
        nn1t1, nn1t1 > nn0t0);
        
    Thread.sleep(5); // make sure time advances!
    
    LOG.info("Failing over to NN 1");
    cluster.transitionToStandby(0);
    cluster.transitionToActive(1);
    long nn1t2 = NameNodeAdapter.getLeaseRenewalTime(nn1, TEST_FILE_STR);
    assertTrue("Lease should have been renewed by failover process",
        nn1t2 > nn1t1);
  } finally {
    IOUtils.closeStream(stm);
    cluster.shutdown();
  }
}