Examples with ManagedLedger org.apache.bookkeeper.mledger.ManagedLedger used on opensource projects

Example 1 with ManagedLedger

use of org.apache.bookkeeper.mledger.ManagedLedger in project pulsar by yahoo.

the class ManagedCursorConcurrencyTest method testAckAndClose.

@Test(timeOut = 30000)
public void testAckAndClose() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger_test_ack_and_close", new ManagedLedgerConfig().setMaxEntriesPerLedger(2));
    final ManagedCursor cursor = ledger.openCursor("c1");
    final List<Position> addedEntries = Lists.newArrayList();
    for (int i = 0; i < 1000; i++) {
        Position pos = ledger.addEntry("entry".getBytes());
        addedEntries.add(pos);
    }
    final CyclicBarrier barrier = new CyclicBarrier(2);
    final CountDownLatch counter = new CountDownLatch(2);
    final AtomicBoolean gotException = new AtomicBoolean(false);
    // Deleter thread
    cachedExecutor.execute(() -> {
        try {
            barrier.await();
            for (Position position : addedEntries) {
                cursor.asyncDelete(position, deleteCallback, position);
            }
        } catch (Exception e) {
            e.printStackTrace();
            gotException.set(true);
        } finally {
            counter.countDown();
        }
    });
    // Reader thread
    cachedExecutor.execute(() -> {
        try {
            barrier.await();
            for (int i = 0; i < 1000; i++) {
                cursor.readEntries(1).forEach(e -> e.release());
            }
        } catch (Exception e) {
            e.printStackTrace();
            gotException.set(true);
        } finally {
            counter.countDown();
        }
    });
    counter.await();
    assertEquals(gotException.get(), false);
}

Example 2 with ManagedLedger

use of org.apache.bookkeeper.mledger.ManagedLedger in project pulsar by yahoo.

the class ManagedCursorConcurrencyTest method testMarkDeleteAndRead.

@Test
public void testMarkDeleteAndRead() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger", new ManagedLedgerConfig().setMaxEntriesPerLedger(2));
    final ManagedCursor cursor = ledger.openCursor("c1");
    final List<Position> addedEntries = Lists.newArrayList();
    for (int i = 0; i < 1000; i++) {
        Position pos = ledger.addEntry("entry".getBytes());
        addedEntries.add(pos);
    }
    final CyclicBarrier barrier = new CyclicBarrier(2);
    final CountDownLatch counter = new CountDownLatch(2);
    final AtomicBoolean gotException = new AtomicBoolean(false);
    Thread deleter = new Thread() {

        public void run() {
            try {
                barrier.await();
                for (Position position : addedEntries) {
                    cursor.markDelete(position);
                }
            } catch (Exception e) {
                e.printStackTrace();
                gotException.set(true);
            } finally {
                counter.countDown();
            }
        }
    };
    Thread reader = new Thread() {

        public void run() {
            try {
                barrier.await();
                for (int i = 0; i < 1000; i++) {
                    cursor.readEntries(1).forEach(e -> e.release());
                }
            } catch (Exception e) {
                e.printStackTrace();
                gotException.set(true);
            } finally {
                counter.countDown();
            }
        }
    };
    deleter.start();
    reader.start();
    counter.await();
    assertEquals(gotException.get(), false);
}

Example 3 with ManagedLedger

use of org.apache.bookkeeper.mledger.ManagedLedger in project pulsar by yahoo.

the class ManagedCursorConcurrencyTest method testConcurrentReadOfSameEntry.

@Test(timeOut = 30000)
public void testConcurrentReadOfSameEntry() throws Exception {
    ManagedLedger ledger = factory.open("testConcurrentReadOfSameEntry", new ManagedLedgerConfig());
    final int numCursors = 5;
    final List<ManagedCursor> cursors = Lists.newArrayList();
    for (int i = 0; i < numCursors; i++) {
        final ManagedCursor cursor = ledger.openCursor("c" + i);
        cursors.add(cursor);
    }
    final int N = 100;
    for (int i = 0; i < N; i++) {
        ledger.addEntry(("entry" + i).getBytes());
    }
    long currentLedger = ((PositionImpl) cursors.get(0).getMarkDeletedPosition()).getLedgerId();
    // empty the cache
    ((ManagedLedgerImpl) ledger).entryCache.invalidateAllEntries(currentLedger);
    final CyclicBarrier barrier = new CyclicBarrier(numCursors);
    final CountDownLatch counter = new CountDownLatch(numCursors);
    AtomicReference<String> result = new AtomicReference<String>();
    for (int i = 0; i < numCursors; i++) {
        final int cursorIndex = i;
        final ManagedCursor cursor = cursors.get(cursorIndex);
        cachedExecutor.execute(() -> {
            try {
                barrier.await();
                for (int j = 0; j < N; j++) {
                    String expected = "entry" + j;
                    String data = new String(cursor.readEntries(1).get(0).getDataAndRelease());
                    if ((!expected.equals(data)) && result.get() == null) {
                        result.set("Mismatched entry in cursor " + (cursorIndex + 1) + " at position " + (j + 1) + "--- Expected: " + expected + ", Actual: " + data);
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                counter.countDown();
            }
        });
    }
    counter.await();
    assertNull(result.get());
}

Example 4 with ManagedLedger

use of org.apache.bookkeeper.mledger.ManagedLedger in project pulsar by yahoo.

the class ManagedCursorConcurrencyTest method testConcurrentIndividualDeletes.

@Test(timeOut = 30000)
public void testConcurrentIndividualDeletes() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger", new ManagedLedgerConfig().setMaxEntriesPerLedger(100));
    final ManagedCursor cursor = ledger.openCursor("c1");
    final int N = 1000;
    final List<Position> addedEntries = Lists.newArrayListWithExpectedSize(N);
    for (int i = 0; i < N; i++) {
        Position pos = ledger.addEntry("entry".getBytes());
        addedEntries.add(pos);
    }
    final int Threads = 10;
    final CyclicBarrier barrier = new CyclicBarrier(Threads);
    final CountDownLatch counter = new CountDownLatch(Threads);
    final AtomicBoolean gotException = new AtomicBoolean(false);
    for (int thread = 0; thread < Threads; thread++) {
        final int myThread = thread;
        cachedExecutor.execute(() -> {
            try {
                barrier.await();
                for (int i = 0; i < N; i++) {
                    int threadId = i % Threads;
                    if (threadId == myThread) {
                        cursor.delete(addedEntries.get(i));
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
                gotException.set(true);
            } finally {
                counter.countDown();
            }
        });
    }
    counter.await();
    assertEquals(gotException.get(), false);
    assertEquals(cursor.getMarkDeletedPosition(), addedEntries.get(addedEntries.size() - 1));
}

Example 5 with ManagedLedger

use of org.apache.bookkeeper.mledger.ManagedLedger in project pulsar by yahoo.

the class ManagedCursorConcurrencyTest method testConcurrentIndividualDeletesWithGetNthEntry.

@Test(timeOut = 30000)
public void testConcurrentIndividualDeletesWithGetNthEntry() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger", new ManagedLedgerConfig().setMaxEntriesPerLedger(100).setThrottleMarkDelete(0.5));
    final ManagedCursor cursor = ledger.openCursor("c1");
    final int N = 1000;
    final List<Position> addedEntries = Lists.newArrayListWithExpectedSize(N);
    for (int i = 0; i < N; i++) {
        Position pos = ledger.addEntry("entry".getBytes());
        addedEntries.add(pos);
    }
    final int deleteEntries = 100;
    final CountDownLatch counter = new CountDownLatch(deleteEntries);
    final AtomicBoolean gotException = new AtomicBoolean(false);
    final AtomicInteger iteration = new AtomicInteger(0);
    for (int i = 0; i < deleteEntries; i++) {
        executor.submit(safeRun(() -> {
            try {
                cursor.asyncDelete(addedEntries.get(iteration.getAndIncrement()), new DeleteCallback() {

                    @Override
                    public void deleteComplete(Object ctx) {
                    // Ok
                    }

                    @Override
                    public void deleteFailed(ManagedLedgerException exception, Object ctx) {
                        exception.printStackTrace();
                        gotException.set(true);
                    }
                }, null);
            } catch (Exception e) {
                e.printStackTrace();
                gotException.set(true);
            } finally {
                counter.countDown();
            }
        }));
    }
    counter.await();
    final int readEntries = N - deleteEntries;
    final CountDownLatch readCounter = new CountDownLatch(readEntries);
    final AtomicInteger successReadEntries = new AtomicInteger(0);
    for (int i = 1; i <= readEntries; i++) {
        try {
            cursor.asyncGetNthEntry(i, IndividualDeletedEntries.Exclude, new ReadEntryCallback() {

                @Override
                public void readEntryComplete(Entry entry, Object ctx) {
                    successReadEntries.getAndIncrement();
                    entry.release();
                    readCounter.countDown();
                }

                @Override
                public void readEntryFailed(ManagedLedgerException exception, Object ctx) {
                    exception.printStackTrace();
                    gotException.set(true);
                }
            }, null);
        } catch (Exception e) {
            e.printStackTrace();
            gotException.set(true);
        }
    }
    readCounter.await();
    assertFalse(gotException.get());
    assertEquals(successReadEntries.get(), readEntries);
}