@Test
public void testOpenedEntityGroupHandlerOnMasterRestart() throws Exception {
// Start the cluster
log("Starting cluster");
TEST_UTIL.getConfiguration().setInt("wasp.master.assignment.timeoutmonitor.period", 2000);
TEST_UTIL.getConfiguration().setInt("wasp.master.assignment.timeoutmonitor.timeout", 5000);
TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_FServer);
String tableName = "testOpenedEntityGroupHandlerOnMasterRestart";
MiniWaspCluster cluster = createEntityGroups(tableName);
abortMaster(cluster);
FServer entityGroupServer = cluster.getFServer(0);
EntityGroup entityGroup = getEntityGroupBeingServed(cluster, entityGroupServer);
// forcefully move a entityGroup to OPENED state in zk
// Create a ZKW to use in the test
zkw =
WaspTestingUtility.createAndForceNodeToOpenedState(
TEST_UTIL, entityGroup, entityGroupServer.getServerName());
// Start up a new master
log("Starting up a new master");
cluster.startMaster().getMaster();
log("Waiting for master to be ready");
cluster.waitForActiveAndReadyMaster();
log("Master is ready");
// Failover should be completed, now wait for no RIT
log("Waiting for no more RIT");
ZKAssign.blockUntilNoRIT(zkw);
}
private MiniWaspCluster createEntityGroups(String tableName)
throws InterruptedException, ZooKeeperConnectionException, IOException, KeeperException {
MiniWaspCluster cluster = TEST_UTIL.getWaspCluster();
log("Waiting for active/ready master");
cluster.waitForActiveAndReadyMaster();
zkw = new ZooKeeperWatcher(TEST_UTIL.getConfiguration(), "testOpenedEntityGroupHandler", null);
// Create a table with entityGroups
byte[] table = Bytes.toBytes(tableName);
byte[] family = Bytes.toBytes("family");
TEST_UTIL.createTable(table);
// wait till the entityGroups are online
log("Waiting for no more RIT");
ZKAssign.blockUntilNoRIT(zkw);
return cluster;
}
@Test
public void testShouldNotCompeleteOpenedEntityGroupSuccessfullyIfVersionMismatches()
throws Exception {
EntityGroup entityGroup = null;
try {
int testIndex = 0;
TEST_UTIL.getHBaseTestingUtility().startMiniZKCluster();
TEST_UTIL
.getConfiguration()
.set(
FConstants.ZOOKEEPER_QUORUM,
TEST_UTIL.getConfiguration().get(HConstants.ZOOKEEPER_QUORUM));
TEST_UTIL
.getConfiguration()
.set(
FConstants.ZOOKEEPER_CLIENT_PORT,
TEST_UTIL.getConfiguration().get(HConstants.ZOOKEEPER_CLIENT_PORT));
final Server server = new MockServer(TEST_UTIL);
FTable htd =
FMetaTestUtil.makeTable(
"testShouldNotCompeleteOpenedEntityGroupSuccessfullyIfVersionMismatches");
EntityGroupInfo egi =
new EntityGroupInfo(
Bytes.toBytes(htd.getTableName()),
Bytes.toBytes(testIndex),
Bytes.toBytes(testIndex + 1));
entityGroup = EntityGroup.createEntityGroup(egi, TEST_UTIL.getConfiguration(), htd, null);
assertNotNull(entityGroup);
AssignmentManager am = Mockito.mock(AssignmentManager.class);
EntityGroupStates rsm = Mockito.mock(EntityGroupStates.class);
Mockito.doReturn(rsm).when(am).getEntityGroupStates();
when(rsm.isEntityGroupInTransition(egi)).thenReturn(false);
when(rsm.getEntityGroupState(egi))
.thenReturn(
new EntityGroupState(
entityGroup.getEntityGroupInfo(),
EntityGroupState.State.OPEN,
System.currentTimeMillis(),
server.getServerName()));
// create a node with OPENED state
zkw =
WaspTestingUtility.createAndForceNodeToOpenedState(
TEST_UTIL, entityGroup, server.getServerName());
when(am.getZKTable()).thenReturn(new ZKTable(zkw));
Stat stat = new Stat();
String nodeName =
ZKAssign.getNodeName(zkw, entityGroup.getEntityGroupInfo().getEncodedName());
ZKUtil.getDataAndWatch(zkw, nodeName, stat);
// use the version for the OpenedEntityGroupHandler
OpenedEntityGroupHandler handler =
new OpenedEntityGroupHandler(
server,
am,
entityGroup.getEntityGroupInfo(),
server.getServerName(),
stat.getVersion());
// Once again overwrite the same znode so that the version changes.
ZKAssign.transitionNode(
zkw,
entityGroup.getEntityGroupInfo(),
server.getServerName(),
EventType.FSERVER_ZK_ENTITYGROUP_OPENED,
EventType.FSERVER_ZK_ENTITYGROUP_OPENED,
stat.getVersion());
// Should not invoke assignmentmanager.entityGroupOnline. If it is
// invoked as per current mocking it will throw null pointer exception.
boolean expectedException = false;
try {
handler.process();
} catch (Exception e) {
expectedException = true;
}
assertFalse("The process method should not throw any exception.", expectedException);
List<String> znodes = ZKUtil.listChildrenAndWatchForNewChildren(zkw, zkw.assignmentZNode);
String entityGroupName = znodes.get(0);
assertEquals(
"The entityGroup should not be opened successfully.",
entityGroupName,
entityGroup.getEntityGroupInfo().getEncodedName());
} finally {
EntityGroup.closeEntityGroup(entityGroup);
TEST_UTIL.getHBaseTestingUtility().shutdownMiniZKCluster();
}
}