@Test
public void testStandbyWithFederation() throws Exception {
setUp(true, "testStandbyWithFederation");
LOG.info("DAFS testStandby");
long lastTxId = getLastTxId();
cluster.killPrimary(0, false);
// make sure to consume all transactions
cluster.getStandbyAvatar(0).avatar.quiesceStandby(lastTxId);
checkStandby();
}
@Test
public void testPrimaryWithFederation() throws Exception {
setUp(true, "testPrimaryWithFederation");
LOG.info("DAFS testPrimary");
cluster.killStandby(0);
checkPrimary();
}
/** Read from primary avatar. */
@Test
public void testPrimary() throws Exception {
setUp(false, "testPrimary");
LOG.info("DAFS testPrimary");
cluster.killStandby();
checkPrimary();
}
@Test
public void testPrimaryShutdownFailure() throws Exception {
setUp(false, "testPrimaryShutdownFailure");
InjectionHandler.set(new TestAvatarAPIHandler());
LOG.info("DAFS testPrimary");
try {
cluster.killPrimary();
fail("Shutting down the node should fail");
} catch (IOException e) {
assertTrue(e.toString().contains("number of required edit streams"));
}
InjectionHandler.clear();
}
/** Set up MiniAvatarCluster. */
public void setUp(boolean federation, String name) throws Exception {
LOG.info("------------------- test: " + name + " START ----------------");
conf = new Configuration();
// populate repl queues on standby (in safe mode)
conf.setFloat("dfs.namenode.replqueue.threshold-pct", 0f);
conf.setLong("fs.avatar.standbyfs.initinterval", 1000);
conf.setLong("fs.avatar.standbyfs.checkinterval", 1000);
if (!federation) {
cluster = new MiniAvatarCluster(conf, 3, true, null, null);
dafs = cluster.getFileSystem();
} else {
cluster = new MiniAvatarCluster(conf, 3, true, null, null, 1, true);
dafs = cluster.getFileSystem(0);
}
path = new Path(FILE_PATH);
dirPath = new Path(DIR_PATH);
DFSTestUtil.createFile(dafs, path, FILE_LEN, (short) 1, 0L);
DFSTestUtil.waitReplication(dafs, path, (short) 1);
try {
Thread.sleep(4000);
} catch (InterruptedException ignore) {
}
}
@Test
public void testFailOverWithFederation() throws Exception {
setUp(true, "testFailoverWithFederation");
LOG.info("DAFS testFailOver");
long lastTxId = getLastTxId();
cluster.killPrimary(0);
cluster.failOver(0);
cluster.restartStandby(0);
cluster.waitAvatarNodesActive(0);
cluster.waitDataNodesActive(0);
// make sure to consume all transactions.
cluster.getStandbyAvatar(0).avatar.quiesceStandby(lastTxId);
try {
Thread.sleep(2000);
} catch (InterruptedException ignore) {
}
checkStandby();
checkPrimary();
}
@BeforeClass
public static void setUpClass() throws Exception {
MiniAvatarCluster.createAndStartZooKeeper();
}
@AfterClass
public static void shutDownClass() throws Exception {
MiniAvatarCluster.shutDownZooKeeper();
}
@After
public void shutDown() throws Exception {
dafs.close();
cluster.shutDown();
}
private long getLastTxId() {
return cluster.getPrimaryAvatar(0).avatar.getFSImage().getEditLog().getCurrentTxId() - 1;
}