| /** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.bookkeeper.test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| import java.io.File; |
| import java.util.Enumeration; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.bookkeeper.bookie.Bookie; |
| import org.apache.bookkeeper.bookie.BookieImpl; |
| import org.apache.bookkeeper.bookie.InterleavedLedgerStorage; |
| import org.apache.bookkeeper.bookie.LedgerDirsManager; |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.client.BookKeeper.DigestType; |
| import org.apache.bookkeeper.client.LedgerEntry; |
| import org.apache.bookkeeper.client.LedgerHandle; |
| import org.apache.bookkeeper.conf.ServerConfiguration; |
| import org.apache.bookkeeper.util.PortManager; |
| import org.junit.Test; |
| |
| /** |
| * Test to verify the readonly feature of bookies. |
| */ |
| public class ReadOnlyBookieTest extends BookKeeperClusterTestCase { |
| |
| public ReadOnlyBookieTest() { |
| super(2); |
| baseConf.setLedgerStorageClass(InterleavedLedgerStorage.class.getName()); |
| baseConf.setEntryLogFilePreAllocationEnabled(false); |
| baseConf.setMinUsableSizeForEntryLogCreation(Long.MAX_VALUE); |
| } |
| |
| /** |
| * Check readonly bookie. |
| */ |
| @Test |
| public void testBookieShouldServeAsReadOnly() throws Exception { |
| killBookie(0); |
| baseConf.setReadOnlyModeEnabled(true); |
| startNewBookie(); |
| LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC, |
| "".getBytes()); |
| |
| // Check new bookie with readonly mode enabled. |
| File[] ledgerDirs = bsConfs.get(1).getLedgerDirs(); |
| assertEquals("Only one ledger dir should be present", 1, |
| ledgerDirs.length); |
| Bookie bookie = bs.get(1).getBookie(); |
| LedgerDirsManager ledgerDirsManager = ((BookieImpl) bookie).getLedgerDirsManager(); |
| |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| |
| // Now add the current ledger dir to filled dirs list |
| ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current")); |
| |
| try { |
| ledger.addEntry("data".getBytes()); |
| fail("Should fail to add entry since there isn't enough bookies alive."); |
| } catch (BKException.BKNotEnoughBookiesException e) { |
| // Expected |
| } |
| |
| assertTrue("Bookie should be running and converted to readonly mode", |
| bookie.isRunning() && bookie.isReadOnly()); |
| |
| // Now kill the other bookie and read entries from the readonly bookie |
| killBookie(0); |
| |
| Enumeration<LedgerEntry> readEntries = ledger.readEntries(0, 9); |
| while (readEntries.hasMoreElements()) { |
| LedgerEntry entry = readEntries.nextElement(); |
| assertEquals("Entry should contain correct data", "data", |
| new String(entry.getEntry())); |
| } |
| } |
| |
| @Test |
| public void testBookieShouldTurnWritableFromReadOnly() throws Exception { |
| killBookie(0); |
| baseConf.setReadOnlyModeEnabled(true); |
| startNewBookie(); |
| LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC, |
| "".getBytes()); |
| |
| // Check new bookie with readonly mode enabled. |
| File[] ledgerDirs = bsConfs.get(1).getLedgerDirs(); |
| assertEquals("Only one ledger dir should be present", 1, |
| ledgerDirs.length); |
| BookieImpl bookie = (BookieImpl) bs.get(1).getBookie(); |
| LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager(); |
| |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| |
| File testDir = new File(ledgerDirs[0], "current"); |
| |
| // Now add the current ledger dir to filled dirs list |
| ledgerDirsManager.addToFilledDirs(testDir); |
| |
| try { |
| ledger.addEntry("data".getBytes()); |
| fail("Should fail to add entry since there isn't enough bookies alive."); |
| } catch (BKException.BKNotEnoughBookiesException e) { |
| // Expected |
| } |
| |
| bkc.waitForReadOnlyBookie(BookieImpl.getBookieId(bsConfs.get(1))) |
| .get(30, TimeUnit.SECONDS); |
| |
| LOG.info("bookie is running {}, readonly {}.", bookie.isRunning(), bookie.isReadOnly()); |
| assertTrue("Bookie should be running and converted to readonly mode", |
| bookie.isRunning() && bookie.isReadOnly()); |
| |
| // should fail to create ledger |
| try { |
| bkc.createLedger(2, 2, DigestType.MAC, "".getBytes()); |
| fail("Should fail to create a ledger since there isn't enough bookies alive."); |
| } catch (BKException.BKNotEnoughBookiesException bke) { |
| // Expected. |
| } |
| |
| // Now add the current ledger dir back to writable dirs list |
| ledgerDirsManager.addToWritableDirs(testDir, true); |
| |
| bkc.waitForWritableBookie(BookieImpl.getBookieId(bsConfs.get(1))) |
| .get(30, TimeUnit.SECONDS); |
| |
| LOG.info("bookie is running {}, readonly {}.", bookie.isRunning(), bookie.isReadOnly()); |
| assertTrue("Bookie should be running and converted back to writable mode", bookie.isRunning() |
| && !bookie.isReadOnly()); |
| |
| LedgerHandle newLedger = bkc.createLedger(2, 2, DigestType.MAC, "".getBytes()); |
| for (int i = 0; i < 10; i++) { |
| newLedger.addEntry("data".getBytes()); |
| } |
| Enumeration<LedgerEntry> readEntries = newLedger.readEntries(0, 9); |
| while (readEntries.hasMoreElements()) { |
| LedgerEntry entry = readEntries.nextElement(); |
| assertEquals("Entry should contain correct data", "data", new String(entry.getEntry())); |
| } |
| } |
| |
| /** |
| * check readOnlyModeEnabled=false. |
| */ |
| @Test |
| public void testBookieShutdownIfReadOnlyModeNotEnabled() throws Exception { |
| killBookie(1); |
| baseConf.setReadOnlyModeEnabled(false); |
| startNewBookie(); |
| |
| File[] ledgerDirs = bsConfs.get(1).getLedgerDirs(); |
| assertEquals("Only one ledger dir should be present", 1, |
| ledgerDirs.length); |
| BookieImpl bookie = (BookieImpl) bs.get(1).getBookie(); |
| LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC, |
| "".getBytes()); |
| LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager(); |
| |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| |
| // Now add the current ledger dir to filled dirs list |
| ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current")); |
| |
| try { |
| ledger.addEntry("data".getBytes()); |
| fail("Should fail to add entry since there isn't enough bookies alive."); |
| } catch (BKException.BKNotEnoughBookiesException e) { |
| // Expected |
| } |
| |
| // wait for up to 10 seconds for bookie to shut down |
| for (int i = 0; i < 10 && bookie.isAlive(); i++) { |
| Thread.sleep(1000); |
| } |
| assertFalse("Bookie should shutdown if readOnlyMode not enabled", |
| bookie.isAlive()); |
| } |
| |
| /** |
| * Check multiple ledger dirs. |
| */ |
| @Test |
| public void testBookieContinueWritingIfMultipleLedgersPresent() |
| throws Exception { |
| startNewBookieWithMultipleLedgerDirs(2); |
| |
| File[] ledgerDirs = bsConfs.get(1).getLedgerDirs(); |
| assertEquals("Only one ledger dir should be present", 2, |
| ledgerDirs.length); |
| BookieImpl bookie = (BookieImpl) bs.get(1).getBookie(); |
| LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC, |
| "".getBytes()); |
| LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager(); |
| |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| |
| // Now add the current ledger dir to filled dirs list |
| ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current")); |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| assertEquals("writable dirs should have one dir", 1, ledgerDirsManager |
| .getWritableLedgerDirs().size()); |
| assertTrue("Bookie should shutdown if readOnlyMode not enabled", |
| bookie.isAlive()); |
| } |
| |
| private void startNewBookieWithMultipleLedgerDirs(int numOfLedgerDirs) |
| throws Exception { |
| ServerConfiguration conf = bsConfs.get(1); |
| killBookie(1); |
| |
| File[] ledgerDirs = new File[numOfLedgerDirs]; |
| for (int i = 0; i < numOfLedgerDirs; i++) { |
| File dir = createTempDir("bookie", "test"); |
| tmpDirs.add(dir); |
| ledgerDirs[i] = dir; |
| } |
| |
| ServerConfiguration newConf = newServerConfiguration( |
| PortManager.nextFreePort(), |
| ledgerDirs[0], ledgerDirs); |
| bsConfs.add(newConf); |
| bs.add(startBookie(newConf)); |
| } |
| |
| /** |
| * Test ledger creation with readonly bookies. |
| */ |
| @Test |
| public void testLedgerCreationShouldFailWithReadonlyBookie() throws Exception { |
| killBookie(1); |
| baseConf.setReadOnlyModeEnabled(true); |
| startNewBookie(); |
| bs.get(1).getBookie().getStateManager().transitionToReadOnlyMode().get(); |
| try { |
| bkc.waitForReadOnlyBookie(BookieImpl.getBookieId(bsConfs.get(1))) |
| .get(30, TimeUnit.SECONDS); |
| |
| bkc.createLedger(2, 2, DigestType.CRC32, "".getBytes()); |
| fail("Must throw exception, as there is one readonly bookie"); |
| } catch (BKException e) { |
| // Expected |
| } |
| } |
| |
| /** |
| * Try to read closed ledger from restarted ReadOnlyBookie. |
| */ |
| public void testReadFromReadOnlyBookieShouldBeSuccess() throws Exception { |
| LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC, "".getBytes()); |
| for (int i = 0; i < 10; i++) { |
| ledger.addEntry("data".getBytes()); |
| } |
| ledger.close(); |
| bsConfs.get(1).setReadOnlyModeEnabled(true); |
| bsConfs.get(1).setDiskCheckInterval(500); |
| restartBookies(); |
| |
| // Check new bookie with readonly mode enabled. |
| File[] ledgerDirs = bsConfs.get(1).getLedgerDirs(); |
| assertEquals("Only one ledger dir should be present", 1, ledgerDirs.length); |
| BookieImpl bookie = (BookieImpl) bs.get(1).getBookie(); |
| LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager(); |
| |
| // Now add the current ledger dir to filled dirs list |
| ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current")); |
| |
| // Wait till Bookie converts to ReadOnly mode. |
| Thread.sleep(1000); |
| assertTrue("Bookie should be converted to readonly mode", bookie.isRunning() && bookie.isReadOnly()); |
| |
| // Now kill the other bookie and read entries from the readonly bookie |
| killBookie(0); |
| |
| Enumeration<LedgerEntry> readEntries = ledger.readEntries(0, 9); |
| while (readEntries.hasMoreElements()) { |
| LedgerEntry entry = readEntries.nextElement(); |
| assertEquals("Entry should contain correct data", "data", new String(entry.getEntry())); |
| } |
| } |
| } |