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

Example 1 with Position

use of org.apache.bookkeeper.mledger.Position 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 Position

use of org.apache.bookkeeper.mledger.Position 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 Position

use of org.apache.bookkeeper.mledger.Position 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 4 with Position

use of org.apache.bookkeeper.mledger.Position 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);
}

Example 5 with Position

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

the class ManagedCursorConcurrencyTest method testCloseAndRead.

@Test
public void testCloseAndRead() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger_test_close_and_read", new ManagedLedgerConfig().setMaxEntriesPerLedger(2));
    final ManagedCursor cursor = ledger.openCursor("c1");
    final CompletableFuture<String> closeFuture = new CompletableFuture<>();
    final String CLOSED = "closed";
    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);
                    Thread.sleep(1);
                }
            } catch (ManagedLedgerException e) {
                if (!e.getMessage().equals("Cursor was already closed")) {
                    gotException.set(true);
                }
            } 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());
                    // Thread.sleep(2,200);
                    Thread.sleep(2, 195);
                }
                cursor.asyncClose(new AsyncCallbacks.CloseCallback() {

                    @Override
                    public void closeComplete(Object ctx) {
                        log.info("Successfully closed cursor ledger");
                        closeFuture.complete(CLOSED);
                    }

                    @Override
                    public void closeFailed(ManagedLedgerException exception, Object ctx) {
                        log.error("Error closing cursor: ", exception);
                        closeFuture.completeExceptionally(new Exception(exception));
                    }
                }, null);
            } catch (Exception e) {
                e.printStackTrace();
                gotException.set(true);
            } finally {
                counter.countDown();
            }
        }
    };
    deleter.start();
    reader.start();
    counter.await();
    assertEquals(gotException.get(), false);
    assertEquals(closeFuture.get(), CLOSED);
}