Java Code Examples for org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter#getLeaseRenewalTime()
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org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter#getLeaseRenewalTime() .
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Example 1
Source File: TestHAStateTransitions.java From hadoop with Apache License 2.0 | 4 votes |
/** * 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 Since lease renewals go from the client * only to the active NN, the SBN will have out-of-date lease * info when it becomes active.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 |
/** * 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 Since lease renewals go from the client * only to the active NN, the SBN will have out-of-date lease * info when it becomes active.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(); } }