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

Example 26 with Position

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

the class ManagedCursorTest method testFindNewestMatchingEven1.

@Test(timeOut = 20000)
void testFindNewestMatchingEven1() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    ManagedCursorImpl c1 = (ManagedCursorImpl) ledger.openCursor("c1");
    Position p1 = ledger.addEntry("expired".getBytes(Encoding));
    ledger.addEntry("not-expired".getBytes(Encoding));
    ledger.addEntry("not-expired".getBytes(Encoding));
    ledger.addEntry("not-expired".getBytes(Encoding));
    assertEquals(c1.findNewestMatching(entry -> Arrays.equals(entry.getDataAndRelease(), "expired".getBytes(Encoding))), p1);
}

Example 27 with Position

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

the class ManagedLedgerBkTest method testConcurrentMarkDelete.

@Test
public void testConcurrentMarkDelete() throws Exception {
    ManagedLedgerFactory factory = new ManagedLedgerFactoryImpl(bkc, zkc);
    ManagedLedgerConfig mlConfig = new ManagedLedgerConfig();
    mlConfig.setEnsembleSize(1).setAckQuorumSize(1).setMetadataEnsembleSize(1).setMetadataAckQuorumSize(1);
    // set the data ledger size
    mlConfig.setMaxEntriesPerLedger(100);
    // set the metadata ledger size to 1 to kick off many ledger switching cases
    mlConfig.setMetadataMaxEntriesPerLedger(10);
    ManagedLedger ledger = factory.open("ml-markdelete-ledger", mlConfig);
    final List<Position> addedEntries = Lists.newArrayList();
    int numCursors = 10;
    final CyclicBarrier barrier = new CyclicBarrier(numCursors);
    List<ManagedCursor> cursors = Lists.newArrayList();
    for (int i = 0; i < numCursors; i++) {
        cursors.add(ledger.openCursor(String.format("c%d", i)));
    }
    for (int i = 0; i < 50; i++) {
        Position pos = ledger.addEntry("entry".getBytes());
        addedEntries.add(pos);
    }
    List<Future<?>> futures = Lists.newArrayList();
    for (ManagedCursor cursor : cursors) {
        futures.add(executor.submit(() -> {
            barrier.await();
            for (Position position : addedEntries) {
                cursor.markDelete(position);
            }
            return null;
        }));
    }
    for (Future<?> future : futures) {
        future.get();
    }
    // Since in this test we roll-over the cursor ledger every 10 entries acknowledged, the background roll back
    // might still be happening when the futures are completed.
    Thread.sleep(1000);
    factory.shutdown();
}

Example 28 with Position

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

the class ManagedLedgerErrorsTest method handleCursorRecoveryFailure.

@Test
public void handleCursorRecoveryFailure() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    ManagedCursor cursor = ledger.openCursor("my-cursor");
    Position p0 = cursor.getMarkDeletedPosition();
    Position p1 = ledger.addEntry("entry-1".getBytes());
    cursor.markDelete(p1);
    // Re-open from a different factory
    ManagedLedgerFactory factory2 = new ManagedLedgerFactoryImpl(bkc, zkc);
    bkc.failAfter(3, BKException.Code.LedgerRecoveryException);
    ledger = factory2.open("my_test_ledger");
    cursor = ledger.openCursor("my-cursor");
    // Since the cursor was rewind, it will be back to p0
    assertEquals(cursor.getMarkDeletedPosition(), p0);
    factory2.shutdown();
}

Example 29 with Position

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

the class ManagedLedgerTest method cursorReadsWithDiscardedEmptyLedgers.

@Test
public void cursorReadsWithDiscardedEmptyLedgers() throws Exception {
    ManagedLedgerImpl ledger = (ManagedLedgerImpl) factory.open("my_test_ledger");
    ManagedCursor c1 = ledger.openCursor("c1");
    Position p1 = c1.getReadPosition();
    c1.close();
    ledger.close();
    // re-open
    ledger = (ManagedLedgerImpl) factory.open("my_test_ledger");
    c1 = ledger.openCursor("c1");
    assertEquals(c1.getNumberOfEntries(), 0);
    assertEquals(c1.hasMoreEntries(), false);
    ledger.addEntry("entry".getBytes());
    assertEquals(c1.getNumberOfEntries(), 1);
    assertEquals(c1.hasMoreEntries(), true);
    assertEquals(ledger.getLedgersInfoAsList().size(), 1);
    List<Entry> entries = c1.readEntries(1);
    assertEquals(entries.size(), 1);
    entries.forEach(e -> e.release());
    assertEquals(c1.hasMoreEntries(), false);
    assertEquals(c1.readEntries(1).size(), 0);
    c1.seek(p1);
    assertEquals(c1.hasMoreEntries(), true);
    assertEquals(c1.getNumberOfEntries(), 1);
    entries = c1.readEntries(1);
    assertEquals(entries.size(), 1);
    entries.forEach(e -> e.release());
    assertEquals(c1.readEntries(1).size(), 0);
}

Example 30 with Position

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

the class ManagedLedgerTest method asyncAddEntryWithoutError.

@Test(timeOut = 20000)
public void asyncAddEntryWithoutError() throws Exception {
    ManagedLedger ledger = factory.open("my_test_ledger");
    ledger.openCursor("test-cursor");
    final CountDownLatch counter = new CountDownLatch(1);
    ledger.asyncAddEntry("dummy-entry-1".getBytes(Encoding), new AddEntryCallback() {

        @Override
        public void addComplete(Position position, Object ctx) {
            assertNull(ctx);
            counter.countDown();
        }

        @Override
        public void addFailed(ManagedLedgerException exception, Object ctx) {
            fail(exception.getMessage());
        }
    }, null);
    counter.await();
    assertEquals(ledger.getNumberOfEntries(), 1);
    assertEquals(ledger.getTotalSize(), "dummy-entry-1".getBytes(Encoding).length);
}