@Test(timeout = 60000)
public void testLedgerCloseWithConsistentLength() throws Exception {
ClientConfiguration conf = new ClientConfiguration();
conf.setZkServers(zkUtil.getZooKeeperConnectString()).setReadTimeout(1);
BookKeeper bkc = new BookKeeper(conf);
LedgerHandle lh = bkc.createLedger(6, 3, DigestType.CRC32, new byte[] {});
final CountDownLatch latch = new CountDownLatch(1);
stopBKCluster();
final AtomicInteger i = new AtomicInteger(0xdeadbeef);
AsyncCallback.AddCallback cb =
new AsyncCallback.AddCallback() {
@Override
public void addComplete(int rc, LedgerHandle lh, long entryId, Object ctx) {
i.set(rc);
latch.countDown();
}
};
lh.asyncAddEntry("Test Entry".getBytes(), cb, null);
latch.await();
assertEquals(i.get(), BKException.Code.NotEnoughBookiesException);
assertEquals(0, lh.getLength());
assertEquals(LedgerHandle.INVALID_ENTRY_ID, lh.getLastAddConfirmed());
startBKCluster();
LedgerHandle newLh = bkc.openLedger(lh.getId(), DigestType.CRC32, new byte[] {});
assertEquals(0, newLh.getLength());
assertEquals(LedgerHandle.INVALID_ENTRY_ID, newLh.getLastAddConfirmed());
}
private void verifyMetadataConsistency(int numEntries, LedgerHandle lh) throws Exception {
final CountDownLatch addDoneLatch = new CountDownLatch(1);
final CountDownLatch deadIOLatch = new CountDownLatch(1);
final CountDownLatch recoverDoneLatch = new CountDownLatch(1);
final CountDownLatch failedLatch = new CountDownLatch(1);
// kill first bookie to replace with a unauthorize bookie
BookieSocketAddress bookie = lh.getLedgerMetadata().currentEnsemble.get(0);
ServerConfiguration conf = killBookie(bookie);
// replace a unauthorize bookie
startUnauthorizedBookie(conf, addDoneLatch);
// kill second bookie to replace with a dead bookie
bookie = lh.getLedgerMetadata().currentEnsemble.get(1);
conf = killBookie(bookie);
// replace a slow dead bookie
startDeadBookie(conf, deadIOLatch);
// tried to add entries
for (int i = 0; i < numEntries; i++) {
lh.asyncAddEntry(
"data".getBytes(),
new AddCallback() {
@Override
public void addComplete(int rc, LedgerHandle lh, long entryId, Object ctx) {
if (BKException.Code.OK != rc) {
failedLatch.countDown();
deadIOLatch.countDown();
}
if (0 == entryId) {
try {
recoverDoneLatch.await();
} catch (InterruptedException ie) {
}
}
}
},
null);
}
// add finished
addDoneLatch.countDown();
// wait until entries failed due to UnauthorizedAccessException
failedLatch.await();
// simulate the ownership of this ledger is transfer to another host
LOG.info("Recover ledger {}.", lh.getId());
ClientConfiguration newConf = new ClientConfiguration();
newConf.addConfiguration(baseClientConf);
BookKeeper newBkc = new BookKeeperTestClient(newConf.setReadTimeout(1));
LedgerHandle recoveredLh = newBkc.openLedger(lh.getId(), digestType, "".getBytes());
LOG.info("Recover ledger {} done.", lh.getId());
recoverDoneLatch.countDown();
// wait a bit until add operations failed from second bookie due to IOException
TimeUnit.SECONDS.sleep(5);
// open the ledger again to make sure we ge the right last confirmed.
LedgerHandle newLh = newBkc.openLedger(lh.getId(), digestType, "".getBytes());
assertEquals(
"Metadata should be consistent across different opened ledgers",
recoveredLh.getLastAddConfirmed(),
newLh.getLastAddConfirmed());
}
/**
* Hedwig Console
*
* @param args arguments
* @throws IOException
* @throws InterruptedException
*/
public HedwigConsole(String[] args) throws IOException, InterruptedException {
// Setup Terminal
terminal = Terminal.setupTerminal();
HedwigCommands.init();
cl.parseOptions(args);
if (cl.getCommand() == null) {
inConsole = true;
} else {
inConsole = false;
}
org.apache.bookkeeper.conf.ClientConfiguration bkClientConf =
new org.apache.bookkeeper.conf.ClientConfiguration();
ServerConfiguration hubServerConf = new ServerConfiguration();
String serverCfgFile = cl.getOption("server-cfg");
if (serverCfgFile != null) {
try {
hubServerConf.loadConf(new File(serverCfgFile).toURI().toURL());
} catch (ConfigurationException e) {
throw new IOException(e);
}
try {
bkClientConf.loadConf(new File(serverCfgFile).toURI().toURL());
} catch (ConfigurationException e) {
throw new IOException(e);
}
}
ClientConfiguration hubClientCfg = new ClientConfiguration();
String clientCfgFile = cl.getOption("client-cfg");
if (clientCfgFile != null) {
try {
hubClientCfg.loadConf(new File(clientCfgFile).toURI().toURL());
} catch (ConfigurationException e) {
throw new IOException(e);
}
}
printMessage("Connecting to zookeeper/bookkeeper using HedwigAdmin");
try {
admin = new HedwigAdmin(bkClientConf, hubServerConf);
admin.getZkHandle().register(new MyWatcher());
} catch (Exception e) {
throw new IOException(e);
}
printMessage("Connecting to default hub server " + hubClientCfg.getDefaultServerHost());
hubClient = new HedwigClient(hubClientCfg);
publisher = hubClient.getPublisher();
subscriber = hubClient.getSubscriber();
subscriber.addSubscriptionListener(new ConsoleSubscriptionListener());
// other parameters
myRegion = hubServerConf.getMyRegion();
}
/**
* Constructor that takes in a configuration object so we know how to connect to ZooKeeper to
* retrieve information about the BookKeeper cluster. We need this before we can do any type of
* admin operations on the BookKeeper cluster.
*
* @param conf Client Configuration Object
* @throws IOException throws this exception if there is an error instantiating the ZooKeeper
* client.
* @throws InterruptedException Throws this exception if there is an error instantiating the
* BookKeeper client.
* @throws KeeperException Throws this exception if there is an error instantiating the BookKeeper
* client.
*/
public BookKeeperAdmin(ClientConfiguration conf)
throws IOException, InterruptedException, KeeperException {
// Create the ZooKeeper client instance
zk =
ZooKeeperClient.newBuilder()
.connectString(conf.getZkServers())
.sessionTimeoutMs(conf.getZkTimeout())
.requestRateLimit(conf.getZkRequestRateLimit())
.build();
ownsZK = true;
// Create the BookKeeper client instance
bkc = new BookKeeper(conf, zk);
ownsBK = true;
this.lfr = new LedgerFragmentReplicator(bkc);
}
/**
* Format the BookKeeper metadata in zookeeper
*
* @param isInteractive Whether format should ask prompt for confirmation if old data exists or
* not.
* @param force If non interactive and force is true, then old data will be removed without
* prompt.
* @return Returns true if format succeeds else false.
*/
public static boolean format(ClientConfiguration conf, boolean isInteractive, boolean force)
throws Exception {
ZooKeeper zkc =
ZooKeeperClient.createConnectedZooKeeperClient(
conf.getZkServers(),
conf.getZkTimeout(),
new BoundExponentialBackoffRetryPolicy(
conf.getZkTimeout(), 3 * conf.getZkTimeout(), Integer.MAX_VALUE));
BookKeeper bkc = null;
try {
boolean ledgerRootExists = null != zkc.exists(conf.getZkLedgersRootPath(), false);
boolean availableNodeExists = null != zkc.exists(conf.getZkAvailableBookiesPath(), false);
// Create ledgers root node if not exists
if (!ledgerRootExists) {
zkc.create(
conf.getZkLedgersRootPath(),
"".getBytes(UTF_8),
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
}
// create available bookies node if not exists
if (!availableNodeExists) {
zkc.create(
conf.getZkAvailableBookiesPath(),
"".getBytes(UTF_8),
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
}
// If old data was there then confirm with admin.
if (ledgerRootExists) {
boolean confirm = false;
if (!isInteractive) {
// If non interactive and force is set, then delete old
// data.
if (force) {
confirm = true;
} else {
confirm = false;
}
} else {
// Confirm with the admin.
confirm = IOUtils.confirmPrompt("Are you sure to format bookkeeper metadata ?");
}
if (!confirm) {
LOG.error("BookKeeper metadata Format aborted!!");
return false;
}
}
bkc = new BookKeeper(conf, zkc);
// Format all ledger metadata layout
bkc.ledgerManagerFactory.format(conf, zkc);
// Clear the cookies
try {
ZKUtil.deleteRecursive(zkc, conf.getZkLedgersRootPath() + "/cookies");
} catch (KeeperException.NoNodeException e) {
LOG.debug("cookies node not exists in zookeeper to delete");
}
// Clear the INSTANCEID
try {
zkc.delete(conf.getZkLedgersRootPath() + "/" + INSTANCEID, -1);
} catch (KeeperException.NoNodeException e) {
LOG.debug("INSTANCEID not exists in zookeeper to delete");
}
// create INSTANCEID
String instanceId = UUID.randomUUID().toString();
zkc.create(
conf.getZkLedgersRootPath() + "/" + INSTANCEID,
instanceId.getBytes(UTF_8),
Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
LOG.info("Successfully formatted BookKeeper metadata");
} finally {
if (null != bkc) {
bkc.close();
}
if (null != zkc) {
zkc.close();
}
}
return true;
}
