Package org.apache.zookeeper.server

Examples of org.apache.zookeeper.server.ServerCnxnFactory

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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(10000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server being up ", ClientBase
                .waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
        ZooKeeper zk = getConnectedZkClient();
        // generate some transactions
        try {
            for (int i = 0; i < NUM_MESSAGES; i++) {
                try {
                    zk.create("/invaliddir/test-", new byte[0],
                            Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT_SEQUENTIAL);
                } catch(NoNodeException e) {
                    //Expected
                }
            }
        } finally {
            zk.close();
        }

        // force the zxid to be behind the content
        zks.getZKDatabase().setlastProcessedZxid(
                zks.getZKDatabase().getDataTreeLastProcessedZxid() - 10);
        LOG.info("Set lastProcessedZxid to "
                + zks.getZKDatabase().getDataTreeLastProcessedZxid());
       
        // Force snapshot and restore
        zks.takeSnapshot();
        zks.shutdown();
        f.shutdown();

        zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(10000);
        f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server being up ", ClientBase
                .waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
       
        f.shutdown();
        zks.shutdown();
    }
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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(10000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server being up ",
                ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
        ZooKeeper zk = getConnectedZkClient();

        // create transactions to create the snapshot with create/delete pattern
        zk.create("/a", "".getBytes(), Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);
        Stat stat = zk.exists("/a", false);
        long createZxId = stat.getMzxid();
        zk.create("/a/b", "".getBytes(), Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);
        zk.delete("/a/b", -1);
        zk.delete("/a", -1);
        // force the zxid to be behind the content
        zks.getZKDatabase().setlastProcessedZxid(createZxId);
        LOG.info("Set lastProcessedZxid to {}", zks.getZKDatabase()
                .getDataTreeLastProcessedZxid());
        // Force snapshot and restore
        zks.takeSnapshot();
        zks.shutdown();
        f.shutdown();

        zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(10000);
        f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server being up ",
                ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
        f.shutdown();
    }
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    @Test
    public void testTruncate() throws IOException, InterruptedException, KeeperException {
        // Prime the server that is going to come in late with 50 txns
        String hostPort = "127.0.0.1:" + baseHostPort;
        int maxCnxns = 100;
        ServerCnxnFactory factory = ClientBase.createNewServerInstance(null,
                hostPort, maxCnxns);
        ClientBase.startServerInstance(dataDir1, factory, hostPort);
        ClientBase.shutdownServerInstance(factory, hostPort);

        // standalone starts with 0 epoch while quorum starts with 1
        File origfile = new File(new File(dataDir1, "version-2"), "snapshot.0");
        File newfile = new File(new File(dataDir1, "version-2"), "snapshot.100000000");
        origfile.renameTo(newfile);

        factory = ClientBase.createNewServerInstance(null, hostPort, maxCnxns);
        ClientBase.startServerInstance(dataDir1, factory, hostPort);

        ZooKeeper zk = new ZooKeeper(hostPort, 15000, nullWatcher);
        for(int i = 0; i < 50; i++) {
            zk.create("/" + i, new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        }
        zk.close();
       
        ZKDatabase zkDb;
        {
            ZooKeeperServer zs = ClientBase.getServer(factory);
   
            zkDb = zs.getZKDatabase();
        }
        factory.shutdown();
        try {
            zkDb.close();
        } catch (IOException ie) {
            LOG.warn("Error closing logs ", ie);
        }
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        int oldSnapCount = SyncRequestProcessor.getSnapCount();
        SyncRequestProcessor.setSnapCount(1000);
        try {
            final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
            ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
            f.startup(zks);
            LOG.info("starting up the the server, waiting");

            Assert.assertTrue("waiting for server up",
                       ClientBase.waitForServerUp(HOSTPORT,
                                       CONNECTION_TIMEOUT));

            startSignal = new CountDownLatch(1);
            ZooKeeper zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
            startSignal.await(CONNECTION_TIMEOUT,
                    TimeUnit.MILLISECONDS);
            Assert.assertTrue("count == 0", startSignal.getCount() == 0);
            String path;
            LOG.info("starting creating nodes");
            for (int i = 0; i < 10; i++) {
                path = "/" + i;
                zk.create(path,
                          (path + "!").getBytes(),
                          Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
                for (int j = 0; j < 10; j++) {
                    String subpath = path + "/" + j;
                    zk.create(subpath, (subpath + "!").getBytes(),
                            Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
                    for (int k = 0; k < 20; k++) {
                        String subsubpath = subpath + "/" + k;
                        zk.create(subsubpath, (subsubpath + "!").getBytes(),
                                Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
                    }
                }
            }

            f.shutdown();
            zks.shutdown();
            Assert.assertTrue("waiting for server down",
                       ClientBase.waitForServerDown(HOSTPORT,
                                          CONNECTION_TIMEOUT));

            zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
            f = ServerCnxnFactory.createFactory(PORT, -1);

            startSignal = new CountDownLatch(1);

            f.startup(zks);

            Assert.assertTrue("waiting for server up",
                       ClientBase.waitForServerUp(HOSTPORT,
                                           CONNECTION_TIMEOUT));

            startSignal.await(CONNECTION_TIMEOUT,
                    TimeUnit.MILLISECONDS);
            Assert.assertTrue("count == 0", startSignal.getCount() == 0);

            Stat stat = new Stat();
            for (int i = 0; i < 10; i++) {
                path = "/" + i;
                LOG.info("Checking " + path);
                Assert.assertEquals(new String(zk.getData(path, false, stat)), path
                        + "!");
                for (int j = 0; j < 10; j++) {
                    String subpath = path + "/" + j;
                    Assert.assertEquals(new String(zk.getData(subpath, false, stat)),
                            subpath + "!");
                    for (int k = 0; k < 20; k++) {
                        String subsubpath = subpath + "/" + k;
                        Assert.assertEquals(new String(zk.getData(subsubpath, false,
                                stat)), subsubpath + "!");
                    }
                }
            }
            f.shutdown();
            zks.shutdown();

            Assert.assertTrue("waiting for server down",
                       ClientBase.waitForServerDown(HOSTPORT,
                                          ClientBase.CONNECTION_TIMEOUT));

            zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
            f = ServerCnxnFactory.createFactory(PORT, -1);

            startSignal = new CountDownLatch(1);

            f.startup(zks);

            Assert.assertTrue("waiting for server up",
                       ClientBase.waitForServerUp(HOSTPORT,
                               CONNECTION_TIMEOUT));

            startSignal.await(CONNECTION_TIMEOUT, TimeUnit.MILLISECONDS);
            Assert.assertTrue("count == 0", startSignal.getCount() == 0);

            stat = new Stat();
            LOG.info("Check 2");
            for (int i = 0; i < 10; i++) {
                path = "/" + i;
                Assert.assertEquals(new String(zk.getData(path, false, stat)),
                             path + "!");
                for (int j = 0; j < 10; j++) {
                    String subpath = path + "/" + j;
                    Assert.assertEquals(new String(zk.getData(subpath, false, stat)),
                            subpath + "!");
                    for (int k = 0; k < 20; k++) {
                        String subsubpath = subpath + "/" + k;
                        Assert.assertEquals(new String(zk.getData(subsubpath, false,
                                stat)), subsubpath + "!");
                    }
                }
            }
            zk.close();

            f.shutdown();
            zks.shutdown();

            Assert.assertTrue("waiting for server down",
                       ClientBase.waitForServerDown(HOSTPORT,
                                                    CONNECTION_TIMEOUT));
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    public void testSnapshot() throws Exception {
        File snapDir = new File(testData, "invalidsnap");
        ZooKeeperServer zks = new ZooKeeperServer(snapDir, snapDir, 3000);
        SyncRequestProcessor.setSnapCount(1000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        LOG.info("starting up the zookeeper server .. waiting");
        Assert.assertTrue("waiting for server being up",
                ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
        ZooKeeper zk = new ZooKeeper(HOSTPORT, 20000, this);
        try {
            // we know this from the data files
            // this node is the last node in the snapshot

            Assert.assertTrue(zk.exists("/9/9/8", false) != null);
        } finally {
            zk.close();
        }
        f.shutdown();
        zks.shutdown();
        Assert.assertTrue("waiting for server down",
                   ClientBase.waitForServerDown(HOSTPORT,
                           ClientBase.CONNECTION_TIMEOUT));
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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(100);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server being up ",
                ClientBase.waitForServerUp(HOSTPORT,CONNECTION_TIMEOUT));
        ZooKeeper zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
        try {
            for (int i = 0; i< 2000; i++) {
                zk.create("/invalidsnap-" + i, new byte[0], Ids.OPEN_ACL_UNSAFE,
                        CreateMode.PERSISTENT);
            }
        } finally {
            zk.close();
        }
        f.shutdown();
        zks.shutdown();
        Assert.assertTrue("waiting for server to shutdown",
                ClientBase.waitForServerDown(HOSTPORT, CONNECTION_TIMEOUT));

        // start server again
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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(1000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        ZooKeeper zk;

        final ArrayList<ACL> CREATOR_ALL_AND_WORLD_READABLE =
          new ArrayList<ACL>() { {
            add(new ACL(ZooDefs.Perms.READ,ZooDefs.Ids.ANYONE_ID_UNSAFE));
            add(new ACL(ZooDefs.Perms.ALL,ZooDefs.Ids.AUTH_IDS));
            add(new ACL(ZooDefs.Perms.READ,ZooDefs.Ids.ANYONE_ID_UNSAFE));
            add(new ACL(ZooDefs.Perms.ALL,ZooDefs.Ids.AUTH_IDS));
        }};

        try {
            LOG.info("starting up the zookeeper server .. waiting");
            Assert.assertTrue("waiting for server being up",
                    ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
            zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);

            zk.addAuthInfo("digest", "pat:test".getBytes());
            zk.setACL("/", Ids.CREATOR_ALL_ACL, -1);

            String path = "/path";

            try {
              Assert.assertEquals(4,CREATOR_ALL_AND_WORLD_READABLE.size());
            }
            catch (Exception e) {
              LOG.error("Something is fundamentally wrong with ArrayList's add() method. add()ing four times to an empty ArrayList should result in an ArrayList with 4 members.");
              throw e;
            }

            zk.create(path,path.getBytes(),CREATOR_ALL_AND_WORLD_READABLE,CreateMode.PERSISTENT);
            List<ACL> acls = zk.getACL("/path", new Stat());
            Assert.assertEquals(2,acls.size());
        }
        catch (Exception e) {
          // test failed somehow.
          Assert.assertTrue(false);
        }

        f.shutdown();
        zks.shutdown();
    }
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        }
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);

        final int PORT = PortAssignment.unique();
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        Assert.assertTrue("waiting for server up",
                   ClientBase.waitForServerUp("127.0.0.1:" + PORT,
                                              CONNECTION_TIMEOUT));

        System.err.println("OOM Stage 0");
        utestPrep(PORT);
        System.out.println("Free = " + Runtime.getRuntime().freeMemory()
                + " total = " + Runtime.getRuntime().totalMemory() + " max = "
                + Runtime.getRuntime().maxMemory());
        System.err.println("OOM Stage 1");
        for (int i = 0; i < 1000; i++) {
            System.out.println(i);
            utestExists(PORT);
        }
        System.out.println("Free = " + Runtime.getRuntime().freeMemory()
                + " total = " + Runtime.getRuntime().totalMemory() + " max = "
                + Runtime.getRuntime().maxMemory());
        System.err.println("OOM Stage 2");
        for (int i = 0; i < 1000; i++) {
            System.out.println(i);
            utestGet(PORT);
        }
        System.out.println("Free = " + Runtime.getRuntime().freeMemory()
                + " total = " + Runtime.getRuntime().totalMemory() + " max = "
                + Runtime.getRuntime().maxMemory());
        System.err.println("OOM Stage 3");
        for (int i = 0; i < 1000; i++) {
            System.out.println(i);
            utestChildren(PORT);
        }
        System.out.println("Free = " + Runtime.getRuntime().freeMemory()
                + " total = " + Runtime.getRuntime().totalMemory() + " max = "
                + Runtime.getRuntime().maxMemory());
        hog.get(0)[0] = (byte) 1;

        f.shutdown();
        zks.shutdown();
        Assert.assertTrue("waiting for server down",
                   ClientBase.waitForServerDown("127.0.0.1:" + PORT,
                                                CONNECTION_TIMEOUT));
    }
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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(1000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        try {
            LOG.info("starting up the zookeeper server .. waiting");
            Assert.assertTrue("waiting for server being up",
                    ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
            ZooKeeper zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
            try {
                zk.addAuthInfo("digest", "pat:test".getBytes());
                zk.setACL("/", Ids.CREATOR_ALL_ACL, -1);
            } finally {
                zk.close();
            }
        } finally {
            f.shutdown();
            zks.shutdown();
            Assert.assertTrue("waiting for server down",
                    ClientBase.waitForServerDown(HOSTPORT,
                            ClientBase.CONNECTION_TIMEOUT));
        }
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        File tmpDir = ClientBase.createTmpDir();
        ClientBase.setupTestEnv();
        ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        SyncRequestProcessor.setSnapCount(1000);
        final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
        ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
        f.startup(zks);
        ZooKeeper zk;
        String path;
        try {
            LOG.info("starting up the zookeeper server .. waiting");
            Assert.assertTrue("waiting for server being up",
                    ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
            zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
            LOG.info("starting creating acls");
            for (int i = 0; i < 100; i++) {
                path = "/" + i;
                zk.create(path, path.getBytes(), Ids.OPEN_ACL_UNSAFE,
                        CreateMode.PERSISTENT);
            }
            Assert.assertTrue("size of the acl map ", (1 == zks.getZKDatabase().getAclSize()));
            for (int j = 100; j < 200; j++) {
                path = "/" + j;
                ACL acl = new ACL();
                acl.setPerms(0);
                Id id = new Id();
                id.setId("1.1.1."+j);
                id.setScheme("ip");
                acl.setId(id);
                ArrayList<ACL> list = new ArrayList<ACL>();
                list.add(acl);
                zk.create(path, path.getBytes(), list, CreateMode.PERSISTENT);
            }
            Assert.assertTrue("size of the acl map ", (101 == zks.getZKDatabase().getAclSize()));
        } finally {
            // now shutdown the server and restart it
            f.shutdown();
            zks.shutdown();
            Assert.assertTrue("waiting for server down",
                    ClientBase.waitForServerDown(HOSTPORT, CONNECTION_TIMEOUT));
        }
        startSignal = new CountDownLatch(1);

        zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
        f = ServerCnxnFactory.createFactory(PORT, -1);

        f.startup(zks);
        try {
            Assert.assertTrue("waiting for server up",
                       ClientBase.waitForServerUp(HOSTPORT, CONNECTION_TIMEOUT));
   
            startSignal.await(CONNECTION_TIMEOUT,
                    TimeUnit.MILLISECONDS);
            Assert.assertTrue("count == 0", startSignal.getCount() == 0);
   
            Assert.assertTrue("acl map ", (101 == zks.getZKDatabase().getAclSize()));
            for (int j = 200; j < 205; j++) {
                path = "/" + j;
                ACL acl = new ACL();
                acl.setPerms(0);
                Id id = new Id();
                id.setId("1.1.1."+j);
                id.setScheme("ip");
                acl.setId(id);
                ArrayList<ACL> list = new ArrayList<ACL>();
                list.add(acl);
                zk.create(path, path.getBytes(), list, CreateMode.PERSISTENT);
            }
            Assert.assertTrue("acl map ", (106 == zks.getZKDatabase().getAclSize()));
   
            zk.close();
        } finally {
            f.shutdown();
            zks.shutdown();
            Assert.assertTrue("waiting for server down",
                       ClientBase.waitForServerDown(HOSTPORT,
                               ClientBase.CONNECTION_TIMEOUT));
        }
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