Examples with ZKException org.apache.distributedlog.exceptions.ZKException used on opensource projects

Example 11 with ZKException

use of org.apache.distributedlog.exceptions.ZKException in project bookkeeper by apache.

the class TestLedgerAllocator method testAllocation.

/**
 * {@link https://issues.apache.org/jira/browse/DL-43}.
 */
@DistributedLogAnnotations.FlakyTest
@Ignore
@Test(timeout = 60000)
public void testAllocation() throws Exception {
    String allocationPath = "/allocation1";
    SimpleLedgerAllocator allocator = createAllocator(allocationPath);
    allocator.allocate();
    ZKTransaction txn = newTxn();
    LedgerHandle lh = Utils.ioResult(allocator.tryObtain(txn, NULL_LISTENER));
    logger.info("Try obtaining ledger handle {}", lh.getId());
    byte[] data = zkc.get().getData(allocationPath, false, null);
    assertEquals((Long) lh.getId(), Long.valueOf(new String(data, UTF_8)));
    txn.addOp(DefaultZKOp.of(Op.setData("/unexistedpath", "data".getBytes(UTF_8), -1), null));
    try {
        Utils.ioResult(txn.execute());
        fail("Should fail the transaction when setting unexisted path");
    } catch (ZKException ke) {
        // expected
        logger.info("Should fail on executing transaction when setting unexisted path", ke);
    }
    data = zkc.get().getData(allocationPath, false, null);
    assertEquals((Long) lh.getId(), Long.valueOf(new String(data, UTF_8)));
    // Create new transaction to obtain the ledger again.
    txn = newTxn();
    // we could obtain the ledger if it was obtained
    LedgerHandle newLh = Utils.ioResult(allocator.tryObtain(txn, NULL_LISTENER));
    assertEquals(lh.getId(), newLh.getId());
    Utils.ioResult(txn.execute());
    data = zkc.get().getData(allocationPath, false, null);
    assertEquals(0, data.length);
    Utils.close(allocator);
}

Example 12 with ZKException

use of org.apache.distributedlog.exceptions.ZKException in project bookkeeper by apache.

the class TestLedgerAllocator method testCloseAllocatorAfterAbort.

@Test(timeout = 60000)
public void testCloseAllocatorAfterAbort() throws Exception {
    String allocationPath = "/allocation3";
    SimpleLedgerAllocator allocator = createAllocator(allocationPath);
    allocator.allocate();
    ZKTransaction txn = newTxn();
    // close during obtaining ledger.
    LedgerHandle lh = Utils.ioResult(allocator.tryObtain(txn, NULL_LISTENER));
    txn.addOp(DefaultZKOp.of(Op.setData("/unexistedpath", "data".getBytes(UTF_8), -1), null));
    try {
        Utils.ioResult(txn.execute());
        fail("Should fail the transaction when setting unexisted path");
    } catch (ZKException ke) {
    // expected
    }
    Utils.close(allocator);
    byte[] data = zkc.get().getData(allocationPath, false, null);
    assertEquals((Long) lh.getId(), Long.valueOf(new String(data, UTF_8)));
    // the ledger is not deleted.
    bkc.get().openLedger(lh.getId(), BookKeeper.DigestType.CRC32, dlConf.getBKDigestPW().getBytes(UTF_8));
}

Example 13 with ZKException

use of org.apache.distributedlog.exceptions.ZKException in project bookkeeper by apache.

the class TestZKLogSegmentMetadataStore method testStoreMaxLogSegmentSequenceNumberOnNonExistentPath.

@Test(timeout = 60000)
public void testStoreMaxLogSegmentSequenceNumberOnNonExistentPath() throws Exception {
    Transaction<Object> updateTxn = lsmStore.transaction();
    Versioned<Long> value = new Versioned<Long>(999L, new LongVersion(10));
    final CompletableFuture<Version> result = new CompletableFuture<Version>();
    String nonExistentPath = rootZkPath + "/non-existent";
    LogMetadata metadata = mock(LogMetadata.class);
    when(metadata.getLogSegmentsPath()).thenReturn(nonExistentPath);
    lsmStore.storeMaxLogSegmentSequenceNumber(updateTxn, metadata, value, new Transaction.OpListener<Version>() {

        @Override
        public void onCommit(Version r) {
            result.complete(r);
        }

        @Override
        public void onAbort(Throwable t) {
            result.completeExceptionally(t);
        }
    });
    try {
        Utils.ioResult(updateTxn.execute());
        fail("Should fail on storing log segment sequence number if path doesn't exist");
    } catch (ZKException zke) {
        assertEquals(KeeperException.Code.NONODE, zke.getKeeperExceptionCode());
    }
    try {
        Utils.ioResult(result);
        fail("Should fail on storing log segment sequence number if path doesn't exist");
    } catch (ZKException ke) {
        assertEquals(KeeperException.Code.NONODE, ke.getKeeperExceptionCode());
    }
}

Example 14 with ZKException

use of org.apache.distributedlog.exceptions.ZKException in project bookkeeper by apache.

the class TestZKLogSegmentMetadataStore method testStoreMaxTxnIdBadVersion.

@Test(timeout = 60000)
public void testStoreMaxTxnIdBadVersion() throws Exception {
    Transaction<Object> updateTxn = lsmStore.transaction();
    Versioned<Long> value = new Versioned<Long>(999L, new LongVersion(10));
    final CompletableFuture<Version> result = new CompletableFuture<Version>();
    LogMetadataForWriter metadata = mock(LogMetadataForWriter.class);
    when(metadata.getMaxTxIdPath()).thenReturn(rootZkPath);
    lsmStore.storeMaxTxnId(updateTxn, metadata, value, new Transaction.OpListener<Version>() {

        @Override
        public void onCommit(Version r) {
            result.complete(r);
        }

        @Override
        public void onAbort(Throwable t) {
            result.completeExceptionally(t);
        }
    });
    try {
        Utils.ioResult(updateTxn.execute());
        fail("Should fail on storing log record transaction id if providing bad version");
    } catch (ZKException zke) {
        assertEquals(KeeperException.Code.BADVERSION, zke.getKeeperExceptionCode());
    }
    try {
        Utils.ioResult(result);
        fail("Should fail on storing log record transaction id if providing bad version");
    } catch (ZKException ze) {
        assertEquals(KeeperException.Code.BADVERSION, ze.getKeeperExceptionCode());
    }
    Stat stat = new Stat();
    byte[] data = zkc.get().getData(rootZkPath, false, stat);
    assertEquals(0, stat.getVersion());
    assertEquals(0, data.length);
}

Example 15 with ZKException

use of org.apache.distributedlog.exceptions.ZKException in project incubator-pulsar by apache.

the class Utils method initializeDlogNamespace.

public static URI initializeDlogNamespace(String zkServers, String ledgersRootPath) throws IOException {
    BKDLConfig dlConfig = new BKDLConfig(zkServers, ledgersRootPath);
    DLMetadata dlMetadata = DLMetadata.create(dlConfig);
    URI dlogUri = URI.create(String.format("distributedlog://%s/pulsar/functions", zkServers));
    try {
        dlMetadata.create(dlogUri);
    } catch (ZKException e) {
        if (e.getKeeperExceptionCode() == Code.NODEEXISTS) {
            return dlogUri;
        }
        throw e;
    }
    return dlogUri;
}