Examples with FileTxnSnapLog org.apache.zookeeper.server.persistence.FileTxnSnapLog used on opensource projects

Example 21 with FileTxnSnapLog

use of org.apache.zookeeper.server.persistence.FileTxnSnapLog in project zookeeper by apache.

the class ZooKeeperServerBeanTest method testTxnLogElapsedSyncTime.

@Test
public void testTxnLogElapsedSyncTime() throws IOException {
    File tmpDir = ClientBase.createEmptyTestDir();
    FileTxnSnapLog fileTxnSnapLog = new FileTxnSnapLog(new File(tmpDir, "data"), new File(tmpDir, "data_txnlog"));
    ZooKeeperServer zks = new ZooKeeperServer();
    zks.setTxnLogFactory(fileTxnSnapLog);
    ZooKeeperServerBean serverBean = new ZooKeeperServerBean(zks);
    long elapsedTime = serverBean.getTxnLogElapsedSyncTime();
    assertEquals(-1, elapsedTime);
    TxnHeader hdr = new TxnHeader(1, 1, 1, 1, ZooDefs.OpCode.setData);
    Record txn = new SetDataTxn("/foo", new byte[0], 1);
    Request req = new Request(0, 0, 0, hdr, txn, 0);
    try {
        zks.getTxnLogFactory().append(req);
        zks.getTxnLogFactory().commit();
        elapsedTime = serverBean.getTxnLogElapsedSyncTime();
        assertNotEquals(-1, elapsedTime);
        assertEquals(elapsedTime, serverBean.getTxnLogElapsedSyncTime());
    } finally {
        fileTxnSnapLog.close();
    }
}

Example 22 with FileTxnSnapLog

use of org.apache.zookeeper.server.persistence.FileTxnSnapLog in project zookeeper by apache.

the class ZooKeeperServerCreationTest method testDefaultConstructor.

/**
 * Test the default ZooKeeperServer and call processConnectRequest() to make sure
 * that all needed fields are initialized properly, etc.
 */
@Test
public void testDefaultConstructor() throws Exception {
    File tmpDir = ClientBase.createEmptyTestDir();
    FileTxnSnapLog fileTxnSnapLog = new FileTxnSnapLog(new File(tmpDir, "data"), new File(tmpDir, "data_txnlog"));
    ZooKeeperServer zks = new ZooKeeperServer() {

        @Override
        public void submitRequest(Request si) {
        // NOP
        }
    };
    zks.setTxnLogFactory(fileTxnSnapLog);
    zks.setZKDatabase(new ZKDatabase(fileTxnSnapLog));
    zks.createSessionTracker();
    ServerCnxnFactory cnxnFactory = ServerCnxnFactory.createFactory();
    ServerCnxn cnxn = new MockServerCnxn();
    ConnectRequest connReq = new ConnectRequest();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
    connReq.serialize(boa, "connect");
    zks.processConnectRequest(cnxn, ByteBuffer.wrap(baos.toByteArray()));
}

Example 23 with FileTxnSnapLog

use of org.apache.zookeeper.server.persistence.FileTxnSnapLog in project zookeeper by apache.

the class Zab1_0Test method createObserver.

private ConversableObserver createObserver(File tmpDir, QuorumPeer peer) throws IOException {
    FileTxnSnapLog logFactory = new FileTxnSnapLog(tmpDir, tmpDir);
    peer.setTxnFactory(logFactory);
    ZKDatabase zkDb = new ZKDatabase(logFactory);
    ObserverZooKeeperServer zk = new ObserverZooKeeperServer(logFactory, peer, zkDb);
    peer.setZKDatabase(zkDb);
    return new ConversableObserver(peer, zk);
}

Example 24 with FileTxnSnapLog

use of org.apache.zookeeper.server.persistence.FileTxnSnapLog in project zookeeper by apache.

the class Zab1_0Test method testInitialAcceptedCurrent.

@Test
public void testInitialAcceptedCurrent() throws Exception {
    File tmpDir = File.createTempFile("test", ".dir", testData);
    tmpDir.delete();
    tmpDir.mkdir();
    try {
        FileTxnSnapLog logFactory = new FileTxnSnapLog(tmpDir, tmpDir);
        File version2 = new File(tmpDir, "version-2");
        version2.mkdir();
        logFactory.save(new DataTree(), new ConcurrentHashMap<Long, Integer>(), false);
        long zxid = ZxidUtils.makeZxid(3, 3);
        logFactory.append(new Request(1, 1, ZooDefs.OpCode.error, new TxnHeader(1, 1, zxid, 1, ZooDefs.OpCode.error), new ErrorTxn(1), zxid));
        logFactory.commit();
        ZKDatabase zkDb = new ZKDatabase(logFactory);
        QuorumPeer peer = QuorumPeer.testingQuorumPeer();
        peer.setZKDatabase(zkDb);
        peer.setTxnFactory(logFactory);
        peer.getLastLoggedZxid();
        assertEquals(3, peer.getAcceptedEpoch());
        assertEquals(3, peer.getCurrentEpoch());
        assertEquals(3, Integer.parseInt(readContentsOfFile(new File(version2, QuorumPeer.CURRENT_EPOCH_FILENAME))));
        assertEquals(3, Integer.parseInt(readContentsOfFile(new File(version2, QuorumPeer.ACCEPTED_EPOCH_FILENAME))));
    } finally {
        TestUtils.deleteFileRecursively(tmpDir);
    }
}

Example 25 with FileTxnSnapLog

use of org.apache.zookeeper.server.persistence.FileTxnSnapLog in project zookeeper by apache.

the class ZooKeeperServerMainTest method testNonRecoverableError.

/**
 * Test case for https://issues.apache.org/jira/browse/ZOOKEEPER-2247.
 * Test to verify that even after non recoverable error (error while
 * writing transaction log), ZooKeeper is still available.
 */
@Test
@Timeout(value = 30)
public void testNonRecoverableError() throws Exception {
    ClientBase.setupTestEnv();
    final int CLIENT_PORT = PortAssignment.unique();
    MainThread main = new MainThread(CLIENT_PORT, true, null);
    main.start();
    assertTrue(ClientBase.waitForServerUp("127.0.0.1:" + CLIENT_PORT, CONNECTION_TIMEOUT), "waiting for server being up");
    ZooKeeper zk = new ZooKeeper("127.0.0.1:" + CLIENT_PORT, ClientBase.CONNECTION_TIMEOUT, this);
    zk.create("/foo1", "foobar".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
    assertEquals(new String(zk.getData("/foo1", null, null)), "foobar");
    // inject problem in server
    ZooKeeperServer zooKeeperServer = main.getCnxnFactory().getZooKeeperServer();
    FileTxnSnapLog snapLog = zooKeeperServer.getTxnLogFactory();
    FileTxnSnapLog fileTxnSnapLogWithError = new FileTxnSnapLog(snapLog.getDataDir(), snapLog.getSnapDir()) {

        @Override
        public void commit() throws IOException {
            throw new IOException("Input/output error");
        }
    };
    ZKDatabase newDB = new ZKDatabase(fileTxnSnapLogWithError);
    zooKeeperServer.setZKDatabase(newDB);
    try {
        // do create operation, so that injected IOException is thrown
        zk.create("/foo2", "foobar".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        fail("IOException is expected as error is injected in transaction log commit funtionality");
    } catch (Exception e) {
    // do nothing
    }
    zk.close();
    assertTrue(ClientBase.waitForServerDown("127.0.0.1:" + CLIENT_PORT, ClientBase.CONNECTION_TIMEOUT), "waiting for server down");
    fileTxnSnapLogWithError.close();
    main.shutdown();
    main.deleteDirs();
}