/**
* Test interruptable while blocking wait on root and meta.
*
* @throws IOException
* @throws InterruptedException
*/
@Test
public void testInterruptWaitOnMetaAndRoot() throws IOException, InterruptedException {
HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
HConnection connection = mockConnection(implementation);
final CatalogTracker ct = constructAndStartCatalogTracker(connection);
ServerName hsa = ct.getRootLocation();
Assert.assertNull(hsa);
ServerName meta = ct.getMetaLocation();
Assert.assertNull(meta);
Thread t =
new Thread() {
@Override
public void run() {
try {
ct.waitForMeta();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted", e);
}
}
};
t.start();
while (!t.isAlive()) Threads.sleep(1);
Threads.sleep(1);
assertTrue(t.isAlive());
ct.stop();
// Join the thread... should exit shortly.
t.join();
}
private void startWaitAliveThenWaitItLives(final Thread t, final int ms) {
t.start();
while (!t.isAlive()) {
// Wait
}
// Wait one second.
Threads.sleep(ms);
Assert.assertTrue("Assert " + t.getName() + " still waiting", t.isAlive());
}
/**
* Test waiting on meta w/ no timeout specified.
*
* @throws Exception
*/
@Ignore // Can't make it work reliably on all platforms; mockito gets confused
// Throwing: org.mockito.exceptions.misusing.WrongTypeOfReturnValue:
// Result cannot be returned by locateRegion()
// If you plug locateRegion, it then throws for incCounter, and if you plug
// that ... and so one.
@Test
public void testNoTimeoutWaitForMeta() throws Exception {
// Mock an HConnection and a HRegionInterface implementation. Have the
// HConnection return the HRI. Have the HRI return a few mocked up responses
// to make our test work.
// Mock an HRegionInterface.
final HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
HConnection connection = mockConnection(implementation);
// Now the ct is up... set into the mocks some answers that make it look
// like things have been getting assigned. Make it so we'll return a
// location (no matter what the Get is). Same for getHRegionInfo -- always
// just return the meta region.
final Result result = getMetaTableRowResult();
// TODO: Refactor. This method has been moved out of HConnection.
// It works for now but has been deprecated.
Mockito.when(connection.getRegionServerWithRetries((ServerCallable<Result>) Mockito.any()))
.thenReturn(result);
Mockito.when(implementation.getRegionInfo((byte[]) Mockito.any()))
.thenReturn(HRegionInfo.FIRST_META_REGIONINFO);
final CatalogTracker ct = constructAndStartCatalogTracker(connection);
ServerName hsa = ct.getMetaLocation();
Assert.assertNull(hsa);
// Now test waiting on meta location getting set.
Thread t =
new WaitOnMetaThread(ct) {
@Override
void doWaiting() throws InterruptedException {
this.ct.waitForMeta();
}
};
startWaitAliveThenWaitItLives(t, 1000);
// This should trigger wake up of meta wait (Its the removal of the meta
// region unassigned node that triggers catalogtrackers that a meta has
// been assigned).
String node = ct.getMetaNodeTracker().getNode();
ZKUtil.createAndFailSilent(this.watcher, node);
MetaEditor.updateMetaLocation(ct, HRegionInfo.FIRST_META_REGIONINFO, SN);
ZKUtil.deleteNode(this.watcher, node);
// Go get the new meta location. waitForMeta gets and verifies meta.
Assert.assertTrue(ct.waitForMeta(10000).equals(SN));
// Join the thread... should exit shortly.
t.join();
// Now meta is available.
Assert.assertTrue(ct.waitForMeta(10000).equals(SN));
}
private void putAndWait(byte[] row, byte[] fam, HTable source, HTable... targets)
throws Exception {
Put put = new Put(row);
put.add(fam, row, row);
source.put(put);
Get get = new Get(row);
for (int i = 0; i < NB_RETRIES; i++) {
if (i == NB_RETRIES - 1) {
fail("Waited too much time for put replication");
}
boolean replicatedToAll = true;
for (HTable target : targets) {
Result res = target.get(get);
if (res.size() == 0) {
LOG.info("Row not available");
replicatedToAll = false;
break;
} else {
assertArrayEquals(res.value(), row);
}
}
if (replicatedToAll) {
break;
} else {
Thread.sleep(SLEEP_TIME);
}
}
}
private void deleteAndWait(byte[] row, HTable source, HTable... targets) throws Exception {
Delete del = new Delete(row);
source.delete(del);
Get get = new Get(row);
for (int i = 0; i < NB_RETRIES; i++) {
if (i == NB_RETRIES - 1) {
fail("Waited too much time for del replication");
}
boolean removedFromAll = true;
for (HTable target : targets) {
Result res = target.get(get);
if (res.size() >= 1) {
LOG.info("Row not deleted");
removedFromAll = false;
break;
}
}
if (removedFromAll) {
break;
} else {
Thread.sleep(SLEEP_TIME);
}
}
}
/**
* Test waiting on root w/ no timeout specified.
*
* @throws IOException
* @throws InterruptedException
* @throws KeeperException
*/
@Test
public void testNoTimeoutWaitForRoot() throws IOException, InterruptedException, KeeperException {
HConnection connection = Mockito.mock(HConnection.class);
final CatalogTracker ct = constructAndStartCatalogTracker(connection);
ServerName hsa = ct.getRootLocation();
Assert.assertNull(hsa);
// Now test waiting on root location getting set.
Thread t = new WaitOnMetaThread(ct);
startWaitAliveThenWaitItLives(t, 1000);
// Set a root location.
hsa = setRootLocation();
// Join the thread... should exit shortly.
t.join();
// Now root is available.
Assert.assertTrue(ct.getRootLocation().equals(hsa));
}
protected void waitForDelete(String tableName) throws Exception {
for (int i = 0; i < MAX_WAIT_ITERATION; i++) {
if (!admin.tableExists(tableName)) {
return;
}
Thread.sleep(WAIT_INTERVAL);
}
Assert.fail(getMethodName() + " failed");
}
@Test
public void testHTableDescriptors() throws IOException, InterruptedException {
final String name = "testHTableDescriptors";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any debris laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
final int count = 10;
// Write out table infos.
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
createHTDInFS(fs, rootdir, htd);
}
FSTableDescriptors htds =
new FSTableDescriptors(fs, rootdir) {
@Override
public HTableDescriptor get(byte[] tablename)
throws TableExistsException, FileNotFoundException, IOException {
LOG.info(Bytes.toString(tablename) + ", cachehits=" + this.cachehits);
return super.get(tablename);
}
};
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
// Update the table infos
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
htd.addFamily(new HColumnDescriptor("" + i));
FSTableDescriptors.updateHTableDescriptor(fs, rootdir, htd);
}
// Wait a while so mod time we write is for sure different.
Thread.sleep(100);
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
assertEquals(count * 4, htds.invocations);
assertTrue(
"expected=" + (count * 2) + ", actual=" + htds.cachehits, htds.cachehits >= (count * 2));
assertTrue(htds.get(HConstants.ROOT_TABLE_NAME) != null);
assertEquals(htds.invocations, count * 4 + 1);
assertTrue(
"expected=" + ((count * 2) + 1) + ", actual=" + htds.cachehits,
htds.cachehits >= ((count * 2) + 1));
}
private static String lock(String lock) {
String realPath = "";
String parent = "/lock";
String lockName = parent + "/" + lock;
logger.debug("Getting lock " + lockName);
try {
if (zkInstance.exists(parent, false) == null)
zkInstance.create(parent, new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.fromFlag(0));
} catch (Exception E) {
logger.error("Error creating lock node: " + E.toString());
return null;
}
List<String> children = new LinkedList<String>();
try {
// List <ACL> ACLList = zkInstance.getACL(lockName, zkInstance.exists(lock, false));
realPath =
zkInstance.create(
lockName, new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);
// children = zkInstance.getChildren(realPath, false);
checkLock:
while (true) {
children = zkInstance.getChildren(parent, false);
for (String curChild : children) {
String child = parent + "/" + curChild;
// System.out.println(child + " " + realPath + " " +
// Integer.toString(child.compareTo(realPath)));
if (child.compareTo(realPath) < 0
&& child.length() == realPath.length()
&& curChild.startsWith(lock)) {
// System.out.println(child + " cmp to " + realPath);
Thread.sleep(300);
continue checkLock;
}
}
logger.info("Got lock " + lockName);
return realPath;
}
} catch (Exception E) {
logger.error("Exception while trying to get lock " + lockName + " :" + E.toString());
E.printStackTrace();
return null;
}
}
protected void waitForMoving(HRegionInfo hRegionInfo, ServerName serverName) throws Exception {
Map<byte[], HServerLoad.RegionLoad> regionsLoad = null;
for (int i = 0; i < MAX_WAIT_ITERATION; i++) {
HServerLoad load = admin.getClusterStatus().getLoad(serverName);
regionsLoad = load.getRegionsLoad();
for (byte[] regionName : regionsLoad.keySet()) {
if (Arrays.equals(regionName, hRegionInfo.getRegionName())) return;
}
admin.move(hRegionInfo.getEncodedNameAsBytes(), serverName.getServerName().getBytes());
Thread.sleep(WAIT_INTERVAL);
}
System.out.println("hRegionInfo = " + Bytes.toString(hRegionInfo.getRegionName()));
for (Map.Entry<byte[], HServerLoad.RegionLoad> entry : regionsLoad.entrySet()) {
System.out.println(
"regionsLoad = " + Bytes.toString(entry.getKey()) + " - " + entry.getValue());
}
Assert.fail(Util.getMethodName() + " failed");
}
@Test
public void testRPCException() throws Exception {
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
TEST_UTIL.startMiniZKCluster();
Configuration conf = TEST_UTIL.getConfiguration();
conf.set(HConstants.MASTER_PORT, "0");
HMaster hm = new HMaster(conf);
ServerName sm = hm.getServerName();
InetSocketAddress isa = new InetSocketAddress(sm.getHostname(), sm.getPort());
int i = 0;
// retry the RPC a few times; we have seen SocketTimeoutExceptions if we
// try to connect too soon. Retry on SocketTimeoutException.
while (i < 20) {
try {
MasterMonitorProtocol inf =
(MasterMonitorProtocol)
HBaseClientRPC.getProxy(MasterMonitorProtocol.class, isa, conf, 100 * 10);
inf.isMasterRunning(null, IsMasterRunningRequest.getDefaultInstance());
fail();
} catch (ServiceException ex) {
IOException ie = ProtobufUtil.getRemoteException(ex);
if (!(ie instanceof SocketTimeoutException)) {
if (ie.getMessage()
.startsWith(
"org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet")) {
return;
}
} else {
System.err.println("Got SocketTimeoutException. Will retry. ");
}
} catch (Throwable t) {
fail("Unexpected throwable: " + t);
}
Thread.sleep(100);
i++;
}
fail();
}
protected void waitForSplitting(String tableName, int regionCount)
throws IOException, InterruptedException {
int regionCountActual = 0;
for (int i = 0; i < MAX_WAIT_ITERATION; i++) {
try (HTable table = new HTable(conf, tableName)) {
regionCountActual = 0;
NavigableMap<HRegionInfo, ServerName> regionLocations = table.getRegionLocations();
for (Map.Entry<HRegionInfo, ServerName> entry : regionLocations.entrySet()) {
HServerLoad serverLoad = admin.getClusterStatus().getLoad(entry.getValue());
for (HServerLoad.RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
if (Arrays.equals(entry.getKey().getRegionName(), regionLoad.getName()))
regionCountActual++;
}
}
if (regionCountActual == regionCount) {
return;
}
}
Thread.sleep(WAIT_INTERVAL);
}
Assert.assertEquals(getMethodName() + " failed - ", regionCount, regionCountActual);
}
private String getMethodName() {
return Thread.currentThread().getStackTrace()[1].getMethodName();
}
@Test
public void testLogCleaning() throws Exception {
Configuration conf = TEST_UTIL.getConfiguration();
// set TTL
long ttl = 10000;
conf.setLong("hbase.master.logcleaner.ttl", ttl);
conf.setBoolean(HConstants.REPLICATION_ENABLE_KEY, HConstants.REPLICATION_ENABLE_DEFAULT);
Replication.decorateMasterConfiguration(conf);
Server server = new DummyServer();
ReplicationQueues repQueues =
ReplicationFactory.getReplicationQueues(server.getZooKeeper(), conf, server);
repQueues.init(server.getServerName().toString());
final Path oldLogDir = new Path(TEST_UTIL.getDataTestDir(), HConstants.HREGION_OLDLOGDIR_NAME);
String fakeMachineName = URLEncoder.encode(server.getServerName().toString(), "UTF8");
final FileSystem fs = FileSystem.get(conf);
// Create 2 invalid files, 1 "recent" file, 1 very new file and 30 old files
long now = System.currentTimeMillis();
fs.delete(oldLogDir, true);
fs.mkdirs(oldLogDir);
// Case 1: 2 invalid files, which would be deleted directly
fs.createNewFile(new Path(oldLogDir, "a"));
fs.createNewFile(new Path(oldLogDir, fakeMachineName + "." + "a"));
// Case 2: 1 "recent" file, not even deletable for the first log cleaner
// (TimeToLiveLogCleaner), so we are not going down the chain
System.out.println("Now is: " + now);
for (int i = 1; i < 31; i++) {
// Case 3: old files which would be deletable for the first log cleaner
// (TimeToLiveLogCleaner), and also for the second (ReplicationLogCleaner)
Path fileName = new Path(oldLogDir, fakeMachineName + "." + (now - i));
fs.createNewFile(fileName);
// Case 4: put 3 old log files in ZK indicating that they are scheduled
// for replication so these files would pass the first log cleaner
// (TimeToLiveLogCleaner) but would be rejected by the second
// (ReplicationLogCleaner)
if (i % (30 / 3) == 1) {
repQueues.addLog(fakeMachineName, fileName.getName());
System.out.println("Replication log file: " + fileName);
}
}
// sleep for sometime to get newer modifcation time
Thread.sleep(ttl);
fs.createNewFile(new Path(oldLogDir, fakeMachineName + "." + now));
// Case 2: 1 newer file, not even deletable for the first log cleaner
// (TimeToLiveLogCleaner), so we are not going down the chain
fs.createNewFile(new Path(oldLogDir, fakeMachineName + "." + (now + 10000)));
for (FileStatus stat : fs.listStatus(oldLogDir)) {
System.out.println(stat.getPath().toString());
}
assertEquals(34, fs.listStatus(oldLogDir).length);
LogCleaner cleaner = new LogCleaner(1000, server, conf, fs, oldLogDir);
cleaner.chore();
// We end up with the current log file, a newer one and the 3 old log
// files which are scheduled for replication
TEST_UTIL.waitFor(
1000,
new Waiter.Predicate<Exception>() {
@Override
public boolean evaluate() throws Exception {
return 5 == fs.listStatus(oldLogDir).length;
}
});
for (FileStatus file : fs.listStatus(oldLogDir)) {
System.out.println("Kept log files: " + file.getPath().getName());
}
}
/**
* Test for HBASE-4288. Throw an IOE when trying to verify meta region and prove it doesn't cause
* master shutdown.
*
* @see <a href="https://issues.apache.org/jira/browse/HBASE-4288">HBASE-4288</a>
* @throws IOException
* @throws InterruptedException
* @throws KeeperException
*/
@Test
public void testServerNotRunningIOException()
throws IOException, InterruptedException, KeeperException {
// Mock an HRegionInterface.
final HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
HConnection connection = mockConnection(implementation);
// If a 'getRegionInfo' is called on mocked HRegionInterface, throw IOE
// the first time. 'Succeed' the second time we are called.
Mockito.when(implementation.getRegionInfo((byte[]) Mockito.any()))
.thenThrow(new IOException("Server not running, aborting"))
.thenReturn(new HRegionInfo());
// After we encounter the above 'Server not running', we should catch the
// IOE and go into retrying for the meta mode. We'll do gets on -ROOT- to
// get new meta location. Return something so this 'get' succeeds
// (here we mock up getRegionServerWithRetries, the wrapper around
// the actual get).
// TODO: Refactor. This method has been moved out of HConnection.
// It works for now but has been deprecated.
Mockito.when(connection.getRegionServerWithRetries((ServerCallable<Result>) Mockito.any()))
.thenReturn(getMetaTableRowResult());
// Now start up the catalogtracker with our doctored Connection.
final CatalogTracker ct = constructAndStartCatalogTracker(connection);
try {
// Set a location for root and meta.
RootLocationEditor.setRootLocation(this.watcher, SN);
ct.setMetaLocation(SN);
// Call the method that HBASE-4288 calls. It will try and verify the
// meta location and will fail on first attempt then go into a long wait.
// So, do this in a thread and then reset meta location to break it out
// of its wait after a bit of time.
final AtomicBoolean metaSet = new AtomicBoolean(false);
final CountDownLatch latch = new CountDownLatch(1);
Thread t =
new Thread() {
@Override
public void run() {
try {
latch.countDown();
metaSet.set(ct.waitForMeta(100000) != null);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
};
t.start();
latch.await();
Threads.sleep(1);
// Now reset the meta as though it were redeployed.
ct.setMetaLocation(SN);
t.join();
Assert.assertTrue(metaSet.get());
} finally {
// Clean out root and meta locations or later tests will be confused...
// they presume start fresh in zk.
ct.resetMetaLocation();
}
}
