Exemple #1
0
  public void restart(int siteId) throws Exception {
    EnvironmentConfig ec = makeBasicConfig();

    int p = config.getMyPort(siteId);
    ReplicationManagerSiteConfig dbsite = new ReplicationManagerSiteConfig("localhost", p);
    dbsite.setLocalSite(true);
    dbsite.setLegacy(true);
    ec.addReplicationManagerSite(dbsite);

    p = config.getOtherPort(siteId);
    dbsite = new ReplicationManagerSiteConfig("localhost", p);
    dbsite.setLegacy(true);
    ec.addReplicationManagerSite(dbsite);

    MyEventHandler monitor = new MyEventHandler();
    ec.setEventHandler(monitor);
    File clientDir = new File(config.getBaseDir(), "dir" + siteId);
    assertTrue(clientDir.exists());
    Environment client = new Environment(clientDir, ec);
    client.setReplicationConfig(ReplicationConfig.STRICT_2SITE, false);

    envs[siteId] = client;
    monitors[siteId] = monitor;
    // we want to make sure we don't retry from here after the
    // initial failure, because we want to make the old master
    // connect to us.
    client.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, Integer.MAX_VALUE);
    client.replicationManagerStart(3, ReplicationManagerStartPolicy.REP_CLIENT);
  }
Exemple #2
0
  public void joinExistingClient(int site, boolean useHB) throws Exception {
    EnvironmentConfig ec = makeBasicConfig();

    int p = config.getMyPort(site);
    ReplicationManagerSiteConfig dbsite = new ReplicationManagerSiteConfig("localhost", p);
    dbsite.setLocalSite(true);
    dbsite.setLegacy(true);
    ec.addReplicationManagerSite(dbsite);

    p = config.getOtherPort(site);
    dbsite = new ReplicationManagerSiteConfig("localhost", p);
    dbsite.setLegacy(true);
    ec.addReplicationManagerSite(dbsite);

    MyEventHandler monitor = new MyEventHandler();
    monitors[site] = monitor;
    ec.setEventHandler(monitor);
    File clientDir = new File(config.getBaseDir(), "dir" + site);
    assertTrue(clientDir.exists());
    Environment client = new Environment(clientDir, ec);
    client.setReplicationConfig(ReplicationConfig.STRICT_2SITE, false);

    if (useHB) {
      client.setReplicationTimeout(ReplicationTimeoutType.HEARTBEAT_SEND, 3000000);
      client.setReplicationTimeout(ReplicationTimeoutType.HEARTBEAT_MONITOR, 6000000);
    }

    envs[site] = client;
    client.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, 1000000); // be impatient
    client.replicationManagerStart(3, ReplicationManagerStartPolicy.REP_CLIENT);
    monitor.await();

    assertTrue(client.getReplicationStats(StatsConfig.DEFAULT).getStartupComplete());
  }
Exemple #3
0
  public void run() {
    String homedirName = baseDirName + threadNumber;
    TestUtils.removeDir(homedirName);

    try {
      homedir = new File(homedirName);
      homedir.mkdir();
    } catch (Exception e) {
      TestUtils.DEBUGOUT(
          2, "Warning: initialization had a problem creating a clean directory.\n" + e);
    }
    try {
      homedir = new File(homedirName);
    } catch (NullPointerException npe) {
      // can't really happen :)
    }

    TestUtils.DEBUGOUT(1, "Creating worker: " + threadNumber);

    envConfig = new EnvironmentConfig();
    envConfig.setErrorStream(TestUtils.getErrorStream());
    envConfig.setErrorPrefix("RepmgrElectionTest test(" + threadNumber + ")");
    envConfig.setAllowCreate(true);
    envConfig.setRunRecovery(true);
    envConfig.setThreaded(true);
    envConfig.setInitializeLocking(true);
    envConfig.setInitializeLogging(true);
    envConfig.setInitializeCache(true);
    envConfig.setTransactional(true);
    envConfig.setTxnNoSync(true);
    envConfig.setInitializeReplication(true);
    envConfig.setVerboseReplication(false);

    ReplicationManagerSiteConfig localConfig =
        new ReplicationManagerSiteConfig(address, basePort + threadNumber);
    localConfig.setLocalSite(true);
    envConfig.addReplicationManagerSite(localConfig);

    envConfig.setReplicationPriority(priorities[threadNumber]);
    envConfig.setEventHandler(this);
    envConfig.setReplicationManagerAckPolicy(ReplicationManagerAckPolicy.ALL);

    if (masterThreadIndex >= 0) {
      // If we already have the master, then set it as the bootstrap helper,
      // otherwise, set local site as new master.
      ReplicationManagerSiteConfig remoteConfig =
          new ReplicationManagerSiteConfig(address, basePort + masterThreadIndex);
      remoteConfig.setBootstrapHelper(true);
      envConfig.addReplicationManagerSite(remoteConfig);
    }

    try {
      dbenv = new Environment(homedir, envConfig);

    } catch (FileNotFoundException e) {
      fail("Unexpected FNFE in standard environment creation." + e);
    } catch (DatabaseException dbe) {
      fail("Unexpected database exception came from environment create." + dbe);
    }

    try {
      // If we do not have master, then set local site as new master.
      if (masterThreadIndex == -1)
        dbenv.replicationManagerStart(NUM_WORKER_THREADS, ReplicationManagerStartPolicy.REP_MASTER);
      else
        dbenv.replicationManagerStart(NUM_WORKER_THREADS, ReplicationManagerStartPolicy.REP_CLIENT);
    } catch (DatabaseException dbe) {
      fail("Unexpected database exception came from replicationManagerStart." + dbe);
    }

    TestUtils.DEBUGOUT(1, "Started replication site: " + threadNumber);
    lastSiteStarted = true;

    try {
      java.lang.Thread.sleep(1000 * (1 + threadNumber));
    } catch (InterruptedException ie) {
    }

    if (masterThreadIndex != -1) {
      // Wait for "Start-up done" for each client, then add next client.
      ReplicationStats rs = null;
      int i = 0;
      do {
        try {
          java.lang.Thread.sleep(2000);
        } catch (InterruptedException e) {
        }

        try {
          rs = dbenv.getReplicationStats(StatsConfig.DEFAULT);
        } catch (DatabaseException dbe) {
          dbe.printStackTrace();
          fail("Unexpected database exception came from getReplicationStats." + dbe);
        }
      } while (!rs.getStartupComplete() && i++ < maxLoopWait);
      assertTrue(rs.getStartupComplete());
    }
  }
Exemple #4
0
  @Test
  public void testDraining() throws Exception {
    EnvironmentConfig masterConfig = makeBasicConfig();
    masterConfig.setReplicationLimit(100000000);
    ReplicationManagerSiteConfig site = new ReplicationManagerSiteConfig("localhost", masterPort);
    site.setLocalSite(true);
    site.setLegacy(true);
    masterConfig.addReplicationManagerSite(site);

    site = new ReplicationManagerSiteConfig("localhost", clientPort);
    site.setLegacy(true);
    masterConfig.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client2Port);
    site.setLegacy(true);
    masterConfig.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client3Port);
    site.setLegacy(true);
    masterConfig.addReplicationManagerSite(site);

    Environment master = new Environment(mkdir("master"), masterConfig);
    setTimeouts(master);
    // Prevent connection retries, so that all connections
    // originate from clients
    master.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, Integer.MAX_VALUE);
    master.replicationManagerStart(2, ReplicationManagerStartPolicy.REP_MASTER);

    DatabaseConfig dc = new DatabaseConfig();
    dc.setTransactional(true);
    dc.setAllowCreate(true);
    dc.setType(DatabaseType.BTREE);
    dc.setPageSize(4096);
    Database db = master.openDatabase(null, "test.db", null, dc);

    DatabaseEntry key = new DatabaseEntry();
    DatabaseEntry value = new DatabaseEntry();
    value.setData(data);

    for (int i = 0; ((BtreeStats) db.getStats(null, null)).getPageCount() < 500; i++) {
      String k = "The record number is: " + i;
      key.setData(k.getBytes());
      db.put(null, key, value);
    }

    // tell fiddler to stop reading once it sees a PAGE message
    Socket s = new Socket("localhost", mgrPort);
    OutputStreamWriter w = new OutputStreamWriter(s.getOutputStream());

    String path1 = "{" + masterPort + "," + clientPort + "}"; // looks like {6000,6001}
    w.write("{init," + path1 + ",page_clog}\r\n");
    w.flush();
    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
    br.readLine();
    assertEquals("ok", br.readLine());
    // create client
    //
    EnvironmentConfig ec = makeBasicConfig();
    site = new ReplicationManagerSiteConfig("localhost", clientPort);
    site.setLocalSite(true);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", masterPort);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client2Port);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client3Port);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    Environment client = new Environment(mkdir("client"), ec);
    setTimeouts(client);
    client.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_CLIENT);

    // wait til it gets stuck
    Thread.sleep(5000); // FIXME

    // Do the same for another client, because the master has 2
    // msg processing threads.  (It's no longer possible to
    // configure just 1.)
    String path2 = "{" + masterPort + "," + client2Port + "}";
    w.write("{init," + path2 + ",page_clog}\r\n");
    w.flush();
    br = new BufferedReader(new InputStreamReader(s.getInputStream()));
    br.readLine();
    assertEquals("ok", br.readLine());

    ec = makeBasicConfig();
    site = new ReplicationManagerSiteConfig("localhost", client2Port);
    site.setLocalSite(true);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", masterPort);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", clientPort);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client3Port);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    Environment client2 = new Environment(mkdir("client2"), ec);
    setTimeouts(client2);
    client2.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_CLIENT);

    // wait til it gets stuck
    Thread.sleep(5000);

    // With the connection stuck, the master cannot write out log
    // records for new "live" transactions.  Knowing we didn't
    // write the record, we should not bother waiting for an ack
    // that cannot possibly arrive; so we should simply return
    // quickly.  The duration should be very quick, but anything
    // less than the ack timeout indicates correct behavior (in
    // case this test runs on a slow, overloaded system).
    //
    long startTime = System.currentTimeMillis();
    key.setData("one extra record".getBytes());
    db.put(null, key, value);
    long duration = System.currentTimeMillis() - startTime;
    assertTrue("txn duration: " + duration, duration < 29000);
    System.out.println("txn duration: " + duration);
    db.close();

    // Tell fiddler to close the connections.  That should trigger
    // us to abandon the timeout.  Then create another client and
    // see that it can complete its internal init quickly.  Since
    // we have limited threads at the master, this demonstrates
    // that they were abandoned.
    //
    path1 = "{" + clientPort + "," + masterPort + "}"; // looks like {6001,6000}
    w.write("{" + path1 + ",shutdown}\r\n");
    w.flush();
    assertEquals("ok", br.readLine());
    path2 = "{" + client2Port + "," + masterPort + "}"; // looks like {6001,6000}
    w.write("{" + path2 + ",shutdown}\r\n");
    w.flush();
    assertEquals("ok", br.readLine());

    ec = makeBasicConfig();
    site = new ReplicationManagerSiteConfig("localhost", client3Port);
    site.setLocalSite(true);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", masterPort);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", clientPort);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);
    site = new ReplicationManagerSiteConfig("localhost", client2Port);
    site.setLegacy(true);
    ec.addReplicationManagerSite(site);

    EventHandler clientMonitor = new EventHandler();
    ec.setEventHandler(clientMonitor);
    Environment client3 = new Environment(mkdir("client3"), ec);
    setTimeouts(client3);
    startTime = System.currentTimeMillis();
    client3.replicationManagerStart(2, ReplicationManagerStartPolicy.REP_CLIENT);
    clientMonitor.await();
    duration = System.currentTimeMillis() - startTime;
    assertTrue("sync duration: " + duration, duration < 20000); // 20 seconds should be plenty

    client3.close();
    master.close();

    w.write("shutdown\r\n");
    w.flush();
    assertEquals("ok", br.readLine());
    s.close();
  }