HADOOP-11149. TestZKFailoverController times out. Contributed by Steve Loughran. closes apache/hadoop#51
This commit is contained in:
Tsuyoshi Ozawa
parent
a4bd54f9d7
commit
053a511919
@ -1355,6 +1355,9 @@ Release 2.8.0 - UNRELEASED
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HADOOP-8419. Fixed GzipCode NPE reset for IBM JDK. (Yu Li via eyang)
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HADOOP-11149. TestZKFailoverController times out. (Steve Loughran
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via ozawa)
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OPTIMIZATIONS
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HADOOP-12051. ProtobufRpcEngine.invoke() should use Exception.toString()
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@ -133,9 +133,11 @@ public void start(int count) throws Exception {
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* @throws Exception if either of the services had encountered a fatal error
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*/
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public void stop() throws Exception {
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for (DummyZKFCThread thr : thrs) {
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if (thr != null) {
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thr.interrupt();
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if (thrs != null) {
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for (DummyZKFCThread thr : thrs) {
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if (thr != null) {
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thr.interrupt();
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}
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}
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}
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if (ctx != null) {
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@ -34,14 +34,23 @@
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import org.apache.zookeeper.ZooKeeper;
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import org.apache.zookeeper.data.Stat;
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import org.apache.zookeeper.server.auth.DigestAuthenticationProvider;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.Timeout;
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import org.mockito.Mockito;
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public class TestZKFailoverController extends ClientBaseWithFixes {
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private Configuration conf;
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private MiniZKFCCluster cluster;
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/**
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* Set the timeout for every test
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*/
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@Rule
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public Timeout testTimeout = new Timeout(3 * 60 * 1000);
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// Set up ZK digest-based credentials for the purposes of the tests,
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// to make sure all of our functionality works with auth and ACLs
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// present.
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@ -74,11 +83,21 @@ public void setupConfAndServices() {
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this.cluster = new MiniZKFCCluster(conf, getServer(serverFactory));
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}
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@After
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public void teardown() {
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if (cluster != null) {
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try {
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cluster.stop();
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} catch (Exception e) {
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LOG.warn("When stopping the cluster", e);
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}
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}
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}
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/**
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* Test that the various command lines for formatting the ZK directory
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* function correctly.
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*/
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@Test(timeout=15000)
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@Test
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public void testFormatZK() throws Exception {
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DummyHAService svc = cluster.getService(1);
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// Run without formatting the base dir,
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@ -101,14 +120,14 @@ public void testFormatZK() throws Exception {
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* Test that if ZooKeeper is not running, the correct error
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* code is returned.
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*/
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@Test(timeout=15000)
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@Test
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public void testNoZK() throws Exception {
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stopServer();
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DummyHAService svc = cluster.getService(1);
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assertEquals(ZKFailoverController.ERR_CODE_NO_ZK,
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runFC(svc));
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}
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@Test
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public void testFormatOneClusterLeavesOtherClustersAlone() throws Exception {
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DummyHAService svc = cluster.getService(1);
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@ -146,7 +165,7 @@ protected String getScopeInsideParentNode() {
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* Test that automatic failover won't run against a target that hasn't
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* explicitly enabled the feature.
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*/
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@Test(timeout=10000)
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@Test
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public void testWontRunWhenAutoFailoverDisabled() throws Exception {
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DummyHAService svc = cluster.getService(1);
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svc = Mockito.spy(svc);
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@ -162,7 +181,7 @@ public void testWontRunWhenAutoFailoverDisabled() throws Exception {
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* Test that, if ACLs are specified in the configuration, that
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* it sets the ACLs when formatting the parent node.
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*/
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@Test(timeout=15000)
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@Test
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public void testFormatSetsAcls() throws Exception {
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// Format the base dir, should succeed
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DummyHAService svc = cluster.getService(1);
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@ -184,7 +203,7 @@ public void testFormatSetsAcls() throws Exception {
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* Test that the ZKFC won't run if fencing is not configured for the
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* local service.
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*/
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@Test(timeout=15000)
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@Test
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public void testFencingMustBeConfigured() throws Exception {
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DummyHAService svc = Mockito.spy(cluster.getService(0));
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Mockito.doThrow(new BadFencingConfigurationException("no fencing"))
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@ -202,31 +221,27 @@ public void testFencingMustBeConfigured() throws Exception {
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* transition is used when possible, falling back to fencing when
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* the graceful approach fails.
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*/
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@Test(timeout=15000)
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@Test
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public void testAutoFailoverOnBadHealth() throws Exception {
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try {
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cluster.start();
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DummyHAService svc1 = cluster.getService(1);
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LOG.info("Faking svc0 unhealthy, should failover to svc1");
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cluster.setHealthy(0, false);
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LOG.info("Waiting for svc0 to enter initializing state");
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cluster.waitForHAState(0, HAServiceState.INITIALIZING);
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cluster.waitForHAState(1, HAServiceState.ACTIVE);
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LOG.info("Allowing svc0 to be healthy again, making svc1 unreachable " +
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"and fail to gracefully go to standby");
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cluster.setUnreachable(1, true);
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cluster.setHealthy(0, true);
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// Should fail back to svc0 at this point
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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// and fence svc1
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Mockito.verify(svc1.fencer).fence(Mockito.same(svc1));
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} finally {
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cluster.stop();
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}
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cluster.start();
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DummyHAService svc1 = cluster.getService(1);
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LOG.info("Faking svc0 unhealthy, should failover to svc1");
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cluster.setHealthy(0, false);
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LOG.info("Waiting for svc0 to enter initializing state");
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cluster.waitForHAState(0, HAServiceState.INITIALIZING);
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cluster.waitForHAState(1, HAServiceState.ACTIVE);
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LOG.info("Allowing svc0 to be healthy again, making svc1 unreachable " +
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"and fail to gracefully go to standby");
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cluster.setUnreachable(1, true);
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cluster.setHealthy(0, true);
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// Should fail back to svc0 at this point
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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// and fence svc1
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Mockito.verify(svc1.fencer).fence(Mockito.same(svc1));
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}
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/**
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@ -235,120 +250,104 @@ public void testAutoFailoverOnBadHealth() throws Exception {
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* transition is used when possible, falling back to fencing when
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* the graceful approach fails.
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*/
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@Test(timeout=15000)
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@Test
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public void testAutoFailoverOnBadState() throws Exception {
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try {
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cluster.start();
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DummyHAService svc0 = cluster.getService(0);
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LOG.info("Faking svc0 to change the state, should failover to svc1");
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svc0.state = HAServiceState.STANDBY;
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// Should fail back to svc0 at this point
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cluster.waitForHAState(1, HAServiceState.ACTIVE);
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} finally {
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cluster.stop();
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}
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}
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@Test(timeout=15000)
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public void testAutoFailoverOnLostZKSession() throws Exception {
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try {
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cluster.start();
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cluster.start();
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DummyHAService svc0 = cluster.getService(0);
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LOG.info("Faking svc0 to change the state, should failover to svc1");
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svc0.state = HAServiceState.STANDBY;
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// Expire svc0, it should fail over to svc1
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cluster.expireAndVerifyFailover(0, 1);
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// Expire svc1, it should fail back to svc0
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cluster.expireAndVerifyFailover(1, 0);
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LOG.info("======= Running test cases second time to test " +
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"re-establishment =========");
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// Expire svc0, it should fail over to svc1
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cluster.expireAndVerifyFailover(0, 1);
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// Expire svc1, it should fail back to svc0
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cluster.expireAndVerifyFailover(1, 0);
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} finally {
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cluster.stop();
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}
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// Should fail back to svc0 at this point
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cluster.waitForHAState(1, HAServiceState.ACTIVE);
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}
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@Test
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public void testAutoFailoverOnLostZKSession() throws Exception {
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cluster.start();
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// Expire svc0, it should fail over to svc1
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cluster.expireAndVerifyFailover(0, 1);
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// Expire svc1, it should fail back to svc0
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cluster.expireAndVerifyFailover(1, 0);
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LOG.info("======= Running test cases second time to test " +
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"re-establishment =========");
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// Expire svc0, it should fail over to svc1
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cluster.expireAndVerifyFailover(0, 1);
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// Expire svc1, it should fail back to svc0
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cluster.expireAndVerifyFailover(1, 0);
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}
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/**
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* Test that, if the standby node is unhealthy, it doesn't try to become
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* active
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*/
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@Test(timeout=15000)
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@Test
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public void testDontFailoverToUnhealthyNode() throws Exception {
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cluster.start();
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// Make svc1 unhealthy, and wait for its FC to notice the bad health.
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cluster.setHealthy(1, false);
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cluster.waitForHealthState(1, HealthMonitor.State.SERVICE_UNHEALTHY);
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// Expire svc0
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cluster.getElector(0).preventSessionReestablishmentForTests();
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try {
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cluster.start();
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cluster.expireActiveLockHolder(0);
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// Make svc1 unhealthy, and wait for its FC to notice the bad health.
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cluster.setHealthy(1, false);
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cluster.waitForHealthState(1, HealthMonitor.State.SERVICE_UNHEALTHY);
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// Expire svc0
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cluster.getElector(0).preventSessionReestablishmentForTests();
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try {
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cluster.expireActiveLockHolder(0);
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LOG.info("Expired svc0's ZK session. Waiting a second to give svc1" +
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" a chance to take the lock, if it is ever going to.");
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Thread.sleep(1000);
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// Ensure that no one holds the lock.
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cluster.waitForActiveLockHolder(null);
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LOG.info("Expired svc0's ZK session. Waiting a second to give svc1" +
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" a chance to take the lock, if it is ever going to.");
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Thread.sleep(1000);
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// Ensure that no one holds the lock.
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cluster.waitForActiveLockHolder(null);
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} finally {
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LOG.info("Allowing svc0's elector to re-establish its connection");
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cluster.getElector(0).allowSessionReestablishmentForTests();
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}
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// svc0 should get the lock again
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cluster.waitForActiveLockHolder(0);
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} finally {
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cluster.stop();
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LOG.info("Allowing svc0's elector to re-establish its connection");
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cluster.getElector(0).allowSessionReestablishmentForTests();
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}
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// svc0 should get the lock again
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cluster.waitForActiveLockHolder(0);
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}
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/**
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* Test that the ZKFC successfully quits the election when it fails to
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* become active. This allows the old node to successfully fail back.
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*/
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@Test(timeout=15000)
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@Test
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public void testBecomingActiveFails() throws Exception {
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try {
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cluster.start();
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DummyHAService svc1 = cluster.getService(1);
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LOG.info("Making svc1 fail to become active");
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cluster.setFailToBecomeActive(1, true);
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LOG.info("Faking svc0 unhealthy, should NOT successfully " +
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"failover to svc1");
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cluster.setHealthy(0, false);
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cluster.waitForHealthState(0, State.SERVICE_UNHEALTHY);
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cluster.waitForActiveLockHolder(null);
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cluster.start();
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DummyHAService svc1 = cluster.getService(1);
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Mockito.verify(svc1.proxy, Mockito.timeout(2000).atLeastOnce())
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.transitionToActive(Mockito.<StateChangeRequestInfo>any());
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LOG.info("Making svc1 fail to become active");
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cluster.setFailToBecomeActive(1, true);
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cluster.waitForHAState(0, HAServiceState.INITIALIZING);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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LOG.info("Faking svc0 healthy again, should go back to svc0");
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cluster.setHealthy(0, true);
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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cluster.waitForActiveLockHolder(0);
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// Ensure that we can fail back to svc1 once it it is able
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// to become active (e.g the admin has restarted it)
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LOG.info("Allowing svc1 to become active, expiring svc0");
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svc1.failToBecomeActive = false;
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cluster.expireAndVerifyFailover(0, 1);
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} finally {
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cluster.stop();
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}
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LOG.info("Faking svc0 unhealthy, should NOT successfully " +
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"failover to svc1");
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cluster.setHealthy(0, false);
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cluster.waitForHealthState(0, State.SERVICE_UNHEALTHY);
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cluster.waitForActiveLockHolder(null);
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Mockito.verify(svc1.proxy, Mockito.timeout(2000).atLeastOnce())
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.transitionToActive(Mockito.<StateChangeRequestInfo>any());
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cluster.waitForHAState(0, HAServiceState.INITIALIZING);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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LOG.info("Faking svc0 healthy again, should go back to svc0");
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cluster.setHealthy(0, true);
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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cluster.waitForActiveLockHolder(0);
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// Ensure that we can fail back to svc1 once it it is able
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// to become active (e.g the admin has restarted it)
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LOG.info("Allowing svc1 to become active, expiring svc0");
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svc1.failToBecomeActive = false;
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cluster.expireAndVerifyFailover(0, 1);
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}
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/**
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@ -356,211 +355,183 @@ public void testBecomingActiveFails() throws Exception {
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* current state, without triggering any failovers, and without
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* causing the active node to enter standby state.
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*/
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@Test(timeout=15000)
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@Test
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public void testZooKeeperFailure() throws Exception {
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try {
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cluster.start();
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cluster.start();
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// Record initial ZK sessions
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long session0 = cluster.getElector(0).getZKSessionIdForTests();
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long session1 = cluster.getElector(1).getZKSessionIdForTests();
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// Record initial ZK sessions
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long session0 = cluster.getElector(0).getZKSessionIdForTests();
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long session1 = cluster.getElector(1).getZKSessionIdForTests();
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LOG.info("====== Stopping ZK server");
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stopServer();
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waitForServerDown(hostPort, CONNECTION_TIMEOUT);
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LOG.info("====== Waiting for services to enter NEUTRAL mode");
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cluster.waitForElectorState(0,
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ActiveStandbyElector.State.NEUTRAL);
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cluster.waitForElectorState(1,
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ActiveStandbyElector.State.NEUTRAL);
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LOG.info("====== Stopping ZK server");
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stopServer();
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waitForServerDown(hostPort, CONNECTION_TIMEOUT);
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LOG.info("====== Checking that the services didn't change HA state");
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assertEquals(HAServiceState.ACTIVE, cluster.getService(0).state);
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assertEquals(HAServiceState.STANDBY, cluster.getService(1).state);
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LOG.info("====== Restarting server");
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startServer();
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waitForServerUp(hostPort, CONNECTION_TIMEOUT);
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LOG.info("====== Waiting for services to enter NEUTRAL mode");
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cluster.waitForElectorState(0,
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ActiveStandbyElector.State.NEUTRAL);
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cluster.waitForElectorState(1,
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ActiveStandbyElector.State.NEUTRAL);
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// Nodes should go back to their original states, since they re-obtain
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// the same sessions.
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cluster.waitForElectorState(0, ActiveStandbyElector.State.ACTIVE);
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cluster.waitForElectorState(1, ActiveStandbyElector.State.STANDBY);
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// Check HA states didn't change.
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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LOG.info("====== Checking that the services didn't change HA state");
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assertEquals(HAServiceState.ACTIVE, cluster.getService(0).state);
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assertEquals(HAServiceState.STANDBY, cluster.getService(1).state);
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// Check they re-used the same sessions and didn't spuriously reconnect
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assertEquals(session0,
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cluster.getElector(0).getZKSessionIdForTests());
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assertEquals(session1,
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cluster.getElector(1).getZKSessionIdForTests());
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} finally {
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cluster.stop();
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}
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LOG.info("====== Restarting server");
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startServer();
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waitForServerUp(hostPort, CONNECTION_TIMEOUT);
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// Nodes should go back to their original states, since they re-obtain
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// the same sessions.
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cluster.waitForElectorState(0, ActiveStandbyElector.State.ACTIVE);
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cluster.waitForElectorState(1, ActiveStandbyElector.State.STANDBY);
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// Check HA states didn't change.
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cluster.waitForHAState(0, HAServiceState.ACTIVE);
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cluster.waitForHAState(1, HAServiceState.STANDBY);
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// Check they re-used the same sessions and didn't spuriously reconnect
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assertEquals(session0,
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cluster.getElector(0).getZKSessionIdForTests());
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assertEquals(session1,
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cluster.getElector(1).getZKSessionIdForTests());
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}
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/**
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* Test that the ZKFC can gracefully cede its active status.
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*/
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@Test(timeout=15000)
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@Test
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public void testCedeActive() throws Exception {
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try {
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cluster.start();
|
||||
DummyZKFC zkfc = cluster.getZkfc(0);
|
||||
// It should be in active to start.
|
||||
assertEquals(ActiveStandbyElector.State.ACTIVE,
|
||||
zkfc.getElectorForTests().getStateForTests());
|
||||
cluster.start();
|
||||
DummyZKFC zkfc = cluster.getZkfc(0);
|
||||
// It should be in active to start.
|
||||
assertEquals(ActiveStandbyElector.State.ACTIVE,
|
||||
zkfc.getElectorForTests().getStateForTests());
|
||||
|
||||
// Ask it to cede active for 3 seconds. It should respond promptly
|
||||
// (i.e. the RPC itself should not take 3 seconds!)
|
||||
ZKFCProtocol proxy = zkfc.getLocalTarget().getZKFCProxy(conf, 5000);
|
||||
long st = Time.now();
|
||||
proxy.cedeActive(3000);
|
||||
long et = Time.now();
|
||||
assertTrue("RPC to cedeActive took " + (et - st) + " ms",
|
||||
et - st < 1000);
|
||||
|
||||
// Should be in "INIT" state since it's not in the election
|
||||
// at this point.
|
||||
assertEquals(ActiveStandbyElector.State.INIT,
|
||||
zkfc.getElectorForTests().getStateForTests());
|
||||
// Ask it to cede active for 3 seconds. It should respond promptly
|
||||
// (i.e. the RPC itself should not take 3 seconds!)
|
||||
ZKFCProtocol proxy = zkfc.getLocalTarget().getZKFCProxy(conf, 5000);
|
||||
long st = Time.now();
|
||||
proxy.cedeActive(3000);
|
||||
long et = Time.now();
|
||||
assertTrue("RPC to cedeActive took " + (et - st) + " ms",
|
||||
et - st < 1000);
|
||||
|
||||
// After the prescribed 3 seconds, should go into STANDBY state,
|
||||
// since the other node in the cluster would have taken ACTIVE.
|
||||
cluster.waitForElectorState(0, ActiveStandbyElector.State.STANDBY);
|
||||
long et2 = Time.now();
|
||||
assertTrue("Should take ~3 seconds to rejoin. Only took " + (et2 - et) +
|
||||
"ms before rejoining.",
|
||||
et2 - et > 2800);
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
// Should be in "INIT" state since it's not in the election
|
||||
// at this point.
|
||||
assertEquals(ActiveStandbyElector.State.INIT,
|
||||
zkfc.getElectorForTests().getStateForTests());
|
||||
|
||||
// After the prescribed 3 seconds, should go into STANDBY state,
|
||||
// since the other node in the cluster would have taken ACTIVE.
|
||||
cluster.waitForElectorState(0, ActiveStandbyElector.State.STANDBY);
|
||||
long et2 = Time.now();
|
||||
assertTrue("Should take ~3 seconds to rejoin. Only took " + (et2 - et) +
|
||||
"ms before rejoining.",
|
||||
et2 - et > 2800);
|
||||
}
|
||||
|
||||
@Test(timeout=25000)
|
||||
|
||||
@Test
|
||||
public void testGracefulFailover() throws Exception {
|
||||
try {
|
||||
cluster.start();
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(1);
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(1);
|
||||
|
||||
cluster.getService(0).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.getService(0).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
Thread.sleep(10000); // allow to quiesce
|
||||
Thread.sleep(10000); // allow to quiesce
|
||||
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
assertEquals(2, cluster.getService(0).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(1).activeTransitionCount);
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
assertEquals(2, cluster.getService(0).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(1).activeTransitionCount);
|
||||
}
|
||||
|
||||
@Test(timeout=15000)
|
||||
|
||||
@Test
|
||||
public void testGracefulFailoverToUnhealthy() throws Exception {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Mark it unhealthy, wait for it to exit election
|
||||
cluster.setHealthy(1, false);
|
||||
cluster.waitForElectorState(1, ActiveStandbyElector.State.INIT);
|
||||
|
||||
// Ask for failover, it should fail, because it's unhealthy
|
||||
try {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Mark it unhealthy, wait for it to exit election
|
||||
cluster.setHealthy(1, false);
|
||||
cluster.waitForElectorState(1, ActiveStandbyElector.State.INIT);
|
||||
|
||||
// Ask for failover, it should fail, because it's unhealthy
|
||||
try {
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
fail("Did not fail to graceful failover to unhealthy service!");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
cluster.getService(1).toString() +
|
||||
" is not currently healthy.", sfe);
|
||||
}
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
}
|
||||
|
||||
@Test(timeout=15000)
|
||||
public void testGracefulFailoverFailBecomingActive() throws Exception {
|
||||
try {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.setFailToBecomeActive(1, true);
|
||||
|
||||
// Ask for failover, it should fail and report back to user.
|
||||
try {
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
fail("Did not fail to graceful failover when target failed " +
|
||||
"to become active!");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"Couldn't make " + cluster.getService(1) + " active", sfe);
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"injected failure", sfe);
|
||||
}
|
||||
|
||||
// No fencing
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
|
||||
// Service 0 should go back to being active after the failed failover
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
}
|
||||
|
||||
@Test(timeout=15000)
|
||||
public void testGracefulFailoverFailBecomingStandby() throws Exception {
|
||||
try {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Ask for failover when old node fails to transition to standby.
|
||||
// This should trigger fencing, since the cedeActive() command
|
||||
// still works, but leaves the breadcrumb in place.
|
||||
cluster.setFailToBecomeStandby(0, true);
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
|
||||
// Check that the old node was fenced
|
||||
assertEquals(1, cluster.getService(0).fenceCount);
|
||||
} finally {
|
||||
cluster.stop();
|
||||
fail("Did not fail to graceful failover to unhealthy service!");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
cluster.getService(1).toString() +
|
||||
" is not currently healthy.", sfe);
|
||||
}
|
||||
}
|
||||
|
||||
@Test(timeout=15000)
|
||||
public void testGracefulFailoverFailBecomingStandbyAndFailFence()
|
||||
throws Exception {
|
||||
|
||||
@Test
|
||||
public void testGracefulFailoverFailBecomingActive() throws Exception {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.setFailToBecomeActive(1, true);
|
||||
|
||||
// Ask for failover, it should fail and report back to user.
|
||||
try {
|
||||
cluster.start();
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
fail("Did not fail to graceful failover when target failed " +
|
||||
"to become active!");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"Couldn't make " + cluster.getService(1) + " active", sfe);
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"injected failure", sfe);
|
||||
}
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Ask for failover when old node fails to transition to standby.
|
||||
// This should trigger fencing, since the cedeActive() command
|
||||
// still works, but leaves the breadcrumb in place.
|
||||
cluster.setFailToBecomeStandby(0, true);
|
||||
cluster.setFailToFence(0, true);
|
||||
// No fencing
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
|
||||
try {
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
fail("Failover should have failed when old node wont fence");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"Unable to fence " + cluster.getService(0), sfe);
|
||||
}
|
||||
} finally {
|
||||
cluster.stop();
|
||||
// Service 0 should go back to being active after the failed failover
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGracefulFailoverFailBecomingStandby() throws Exception {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Ask for failover when old node fails to transition to standby.
|
||||
// This should trigger fencing, since the cedeActive() command
|
||||
// still works, but leaves the breadcrumb in place.
|
||||
cluster.setFailToBecomeStandby(0, true);
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
|
||||
// Check that the old node was fenced
|
||||
assertEquals(1, cluster.getService(0).fenceCount);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGracefulFailoverFailBecomingStandbyAndFailFence()
|
||||
throws Exception {
|
||||
cluster.start();
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// Ask for failover when old node fails to transition to standby.
|
||||
// This should trigger fencing, since the cedeActive() command
|
||||
// still works, but leaves the breadcrumb in place.
|
||||
cluster.setFailToBecomeStandby(0, true);
|
||||
cluster.setFailToFence(0, true);
|
||||
|
||||
try {
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
fail("Failover should have failed when old node wont fence");
|
||||
} catch (ServiceFailedException sfe) {
|
||||
GenericTestUtils.assertExceptionContains(
|
||||
"Unable to fence " + cluster.getService(0), sfe);
|
||||
}
|
||||
}
|
||||
|
||||
@ -568,73 +539,65 @@ public void testGracefulFailoverFailBecomingStandbyAndFailFence()
|
||||
* Test which exercises all of the inputs into ZKFC. This is particularly
|
||||
* useful for running under jcarder to check for lock order violations.
|
||||
*/
|
||||
@Test(timeout=30000)
|
||||
@Test
|
||||
public void testOneOfEverything() throws Exception {
|
||||
try {
|
||||
cluster.start();
|
||||
|
||||
// Failover by session expiration
|
||||
LOG.info("====== Failing over by session expiration");
|
||||
cluster.expireAndVerifyFailover(0, 1);
|
||||
cluster.expireAndVerifyFailover(1, 0);
|
||||
|
||||
// Restart ZK
|
||||
LOG.info("====== Restarting server");
|
||||
stopServer();
|
||||
waitForServerDown(hostPort, CONNECTION_TIMEOUT);
|
||||
startServer();
|
||||
waitForServerUp(hostPort, CONNECTION_TIMEOUT);
|
||||
cluster.start();
|
||||
|
||||
// Failover by bad health
|
||||
cluster.setHealthy(0, false);
|
||||
cluster.waitForHAState(0, HAServiceState.INITIALIZING);
|
||||
cluster.waitForHAState(1, HAServiceState.ACTIVE);
|
||||
cluster.setHealthy(1, true);
|
||||
cluster.setHealthy(0, false);
|
||||
cluster.waitForHAState(1, HAServiceState.ACTIVE);
|
||||
cluster.waitForHAState(0, HAServiceState.INITIALIZING);
|
||||
cluster.setHealthy(0, true);
|
||||
|
||||
cluster.waitForHealthState(0, State.SERVICE_HEALTHY);
|
||||
|
||||
// Graceful failovers
|
||||
cluster.getZkfc(1).gracefulFailoverToYou();
|
||||
cluster.getZkfc(0).gracefulFailoverToYou();
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
// Failover by session expiration
|
||||
LOG.info("====== Failing over by session expiration");
|
||||
cluster.expireAndVerifyFailover(0, 1);
|
||||
cluster.expireAndVerifyFailover(1, 0);
|
||||
|
||||
// Restart ZK
|
||||
LOG.info("====== Restarting server");
|
||||
stopServer();
|
||||
waitForServerDown(hostPort, CONNECTION_TIMEOUT);
|
||||
startServer();
|
||||
waitForServerUp(hostPort, CONNECTION_TIMEOUT);
|
||||
|
||||
// Failover by bad health
|
||||
cluster.setHealthy(0, false);
|
||||
cluster.waitForHAState(0, HAServiceState.INITIALIZING);
|
||||
cluster.waitForHAState(1, HAServiceState.ACTIVE);
|
||||
cluster.setHealthy(1, true);
|
||||
cluster.setHealthy(0, false);
|
||||
cluster.waitForHAState(1, HAServiceState.ACTIVE);
|
||||
cluster.waitForHAState(0, HAServiceState.INITIALIZING);
|
||||
cluster.setHealthy(0, true);
|
||||
|
||||
cluster.waitForHealthState(0, State.SERVICE_HEALTHY);
|
||||
|
||||
// Graceful failovers
|
||||
cluster.getZkfc(1).gracefulFailoverToYou();
|
||||
cluster.getZkfc(0).gracefulFailoverToYou();
|
||||
}
|
||||
|
||||
@Test(timeout = 25000)
|
||||
@Test
|
||||
public void testGracefulFailoverMultipleZKfcs() throws Exception {
|
||||
try {
|
||||
cluster.start(3);
|
||||
cluster.start(3);
|
||||
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
// failover to first
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(1);
|
||||
// failover to first
|
||||
cluster.getService(1).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(1);
|
||||
|
||||
// failover to second
|
||||
cluster.getService(2).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(2);
|
||||
// failover to second
|
||||
cluster.getService(2).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(2);
|
||||
|
||||
// failover back to original
|
||||
cluster.getService(0).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
// failover back to original
|
||||
cluster.getService(0).getZKFCProxy(conf, 5000).gracefulFailover();
|
||||
cluster.waitForActiveLockHolder(0);
|
||||
|
||||
Thread.sleep(10000); // allow to quiesce
|
||||
Thread.sleep(10000); // allow to quiesce
|
||||
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
assertEquals(0, cluster.getService(2).fenceCount);
|
||||
assertEquals(2, cluster.getService(0).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(1).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(2).activeTransitionCount);
|
||||
} finally {
|
||||
cluster.stop();
|
||||
}
|
||||
assertEquals(0, cluster.getService(0).fenceCount);
|
||||
assertEquals(0, cluster.getService(1).fenceCount);
|
||||
assertEquals(0, cluster.getService(2).fenceCount);
|
||||
assertEquals(2, cluster.getService(0).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(1).activeTransitionCount);
|
||||
assertEquals(1, cluster.getService(2).activeTransitionCount);
|
||||
}
|
||||
|
||||
private int runFC(DummyHAService target, String ... args) throws Exception {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user