@Test
public void testUnassignedOrphan() throws Exception {
LOG.info("TestUnassignedOrphan - an unassigned task is resubmitted at" + " startup");
String tasknode = ZKSplitLog.getEncodedNodeName(zkw, "orphan/test/slash");
// create an unassigned orphan task
zkw.getRecoverableZooKeeper()
.create(
tasknode,
TaskState.TASK_UNASSIGNED.get("dummy-worker"),
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
int version = ZKUtil.checkExists(zkw, tasknode);
slm = new SplitLogManager(zkw, conf, stopper, "dummy-master", null);
slm.finishInitialization();
waitForCounter(tot_mgr_orphan_task_acquired, 0, 1, 100);
Task task = slm.findOrCreateOrphanTask(tasknode);
assertTrue(task.isOrphan());
assertTrue(task.isUnassigned());
// wait for RESCAN node to be created
waitForCounter(tot_mgr_rescan, 0, 1, 500);
Task task2 = slm.findOrCreateOrphanTask(tasknode);
assertTrue(task == task2);
LOG.debug("task = " + task);
assertEquals(1L, tot_mgr_resubmit.get());
assertEquals(1, task.incarnation);
assertEquals(0, task.unforcedResubmits);
assertTrue(task.isOrphan());
assertTrue(task.isUnassigned());
assertTrue(ZKUtil.checkExists(zkw, tasknode) > version);
}
@Test
public void testOrphanTaskAcquisition() throws Exception {
LOG.info("TestOrphanTaskAcquisition");
String tasknode = ZKSplitLog.getEncodedNodeName(zkw, "orphan/test/slash");
zkw.getRecoverableZooKeeper()
.create(
tasknode,
TaskState.TASK_OWNED.get("dummy-worker"),
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
int to = 1000;
conf.setInt("hbase.splitlog.manager.timeout", to);
conf.setInt("hbase.splitlog.manager.timeoutmonitor.period", 100);
to = to + 2 * 100;
slm = new SplitLogManager(zkw, conf, stopper, "dummy-master", null);
slm.finishInitialization();
waitForCounter(tot_mgr_orphan_task_acquired, 0, 1, 100);
Task task = slm.findOrCreateOrphanTask(tasknode);
assertTrue(task.isOrphan());
waitForCounter(tot_mgr_heartbeat, 0, 1, 100);
assertFalse(task.isUnassigned());
long curt = System.currentTimeMillis();
assertTrue((task.last_update <= curt) && (task.last_update > (curt - 1000)));
LOG.info("waiting for manager to resubmit the orphan task");
waitForCounter(tot_mgr_resubmit, 0, 1, to + 100);
assertTrue(task.isUnassigned());
waitForCounter(tot_mgr_rescan, 0, 1, to + 100);
}
private String submitTaskAndWait(TaskBatch batch, String name)
throws KeeperException, InterruptedException {
String tasknode = ZKSplitLog.getEncodedNodeName(zkw, name);
NodeCreationListener listener = new NodeCreationListener(zkw, tasknode);
zkw.registerListener(listener);
ZKUtil.watchAndCheckExists(zkw, tasknode);
slm.installTask(name, batch);
assertEquals(1, batch.installed);
assertTrue(slm.findOrCreateOrphanTask(tasknode).batch == batch);
assertEquals(1L, tot_mgr_node_create_queued.get());
LOG.debug("waiting for task node creation");
listener.waitForCreation();
LOG.debug("task created");
return tasknode;
}