Package org.apache.activemq.leveldb.replicated

Examples of org.apache.activemq.leveldb.replicated.ElectingLevelDBStore

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        // This little hack is in here because we give each of the 3 brokers
        // different broker names so they can show up in JMX correctly,
        // but the store needs to be configured with the same broker name
        // so that they can find each other in ZK properly.
        ElectingLevelDBStore store = new ElectingLevelDBStore() {
            @Override
            public void start() throws Exception {
                this.setBrokerName("localhost");
                super.start();
            }
        };
        store.setDirectory(new File(data_dir(), id));
        store.setContainer(id);
        store.setReplicas(3);
        store.setZkAddress("localhost:" + connector.getLocalPort());
        store.setHostname("localhost");
        store.setBind("tcp://0.0.0.0:0");
        return store;
    }
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        ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for(String dir: new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f!=null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for(CountDownFuture start: pending_starts) {
            assertFalse(start.completed());
        }

        // Make sure only of the stores is reporting to be the master.
        ElectingLevelDBStore master = null;
        for(ElectingLevelDBStore store: stores) {
            if( store.isMaster() ) {
                assertNull(master);
                master = store;
            }
        }
        assertNotNull(master);

        // We can work out who the slaves are...
        HashSet<ElectingLevelDBStore> slaves = new HashSet<ElectingLevelDBStore>(stores);
        slaves.remove(master);

        // Start sending messages to the master.
        ArrayList<String> expected_list = new ArrayList<String>();
        MessageStore ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
        final int TOTAL = 500;
        for (int i = 0; i < TOTAL; i++) {
            if (i % ((int) (TOTAL * 0.10)) == 0) {
                LOG.info("" + (100 * i / TOTAL) + "% done");
            }

            if( i == 250 ) {

                LOG.info("Checking master state");
                assertEquals(expected_list, getMessages(ms));

                // mid way, lets kill the master..
                LOG.info("Killing Master.");
                master.stop();

                // At least one of the remaining stores should complete starting.
                LOG.info("Waiting for slave takeover...");
                f = waitFor(60 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
                assertTrue(f!=null);
                pending_starts.remove(f);

                // Make sure one and only one of the slaves becomes the master..
                master = null;
                for(ElectingLevelDBStore store: slaves) {
                    if( store.isMaster() ) {
                        assertNull(master);
                        master = store;
                    }
                }

                assertNotNull(master);
                slaves.remove(master);

                ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
            }

            String msgid = "m:" + i;
            addMessage(ms, msgid);
            expected_list.add(msgid);
        }

        LOG.info("Checking master state");
        assertEquals(expected_list, getMessages(ms));

        master.stop();
        for(ElectingLevelDBStore store: stores) {
            store.stop();
        }
    }
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        final ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for (String dir : new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f != null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for (CountDownFuture start : pending_starts) {
            assertFalse(start.completed());
        }

        // Stop ZooKeeper..
        LOG.info("SHUTTING DOWN ZooKeeper!");
        connector.shutdown();

        // None of the store should be slaves...
        within( 30, TimeUnit.SECONDS, new Task(){
            public void run() throws Exception {
                for (ElectingLevelDBStore store : stores) {
                    assertFalse(store.isMaster());
                }
            }
        });

        for (ElectingLevelDBStore store : stores) {
            store.stop();
        }
    }
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        });
        return f;
    }

    private ElectingLevelDBStore createStoreNode() {
        ElectingLevelDBStore store = new ElectingLevelDBStore();
        store.setSecurityToken("foo");
        store.setLogSize(1024 * 200);
        store.setReplicas(2);
        store.setZkAddress("localhost:" + connector.getLocalPort());
        store.setZkPath("/broker-stores");
        store.setBrokerName("foo");
        store.setHostname("localhost");
        store.setBind("tcp://0.0.0.0:0");
        return store;
    }
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        ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for(String dir: new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f!=null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for(CountDownFuture start: pending_starts) {
            assertFalse(start.completed());
        }

        // Make sure only of the stores is reporting to be the master.
        ElectingLevelDBStore master = null;
        for(ElectingLevelDBStore store: stores) {
            if( store.isMaster() ) {
                assertNull(master);
                master = store;
            }
        }
        assertNotNull(master);

        // We can work out who the slaves are...
        HashSet<ElectingLevelDBStore> slaves = new HashSet<ElectingLevelDBStore>(stores);
        slaves.remove(master);

        // Start sending messages to the master.
        ArrayList<String> expected_list = new ArrayList<String>();
        MessageStore ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
        final int TOTAL = 500;
        for (int i = 0; i < TOTAL; i++) {
            if (i % ((int) (TOTAL * 0.10)) == 0) {
                LOG.info("" + (100 * i / TOTAL) + "% done");
            }

            if( i == 250 ) {

                LOG.info("Checking master state");
                assertEquals(expected_list, getMessages(ms));

                // mid way, lets kill the master..
                LOG.info("Killing Master.");
                master.stop();

                // At least one of the remaining stores should complete starting.
                LOG.info("Waiting for slave takeover...");
                f = waitFor(60 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
                assertTrue(f!=null);
                pending_starts.remove(f);

                // Make sure one and only one of the slaves becomes the master..
                master = null;
                for(ElectingLevelDBStore store: slaves) {
                    if( store.isMaster() ) {
                        assertNull(master);
                        master = store;
                    }
                }

                assertNotNull(master);
                slaves.remove(master);

                ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
            }

            String msgid = "m:" + i;
            addMessage(ms, msgid);
            expected_list.add(msgid);
        }

        LOG.info("Checking master state");
        assertEquals(expected_list, getMessages(ms));

        master.stop();
        for(ElectingLevelDBStore store: stores) {
            store.stop();
        }
    }
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        final ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for (String dir : new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f != null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for (CountDownFuture start : pending_starts) {
            assertFalse(start.completed());
        }

        // Stop ZooKeeper..
        LOG.info("SHUTTING DOWN ZooKeeper!");
        connector.shutdown();

        // None of the store should be slaves...
        within( 30, TimeUnit.SECONDS, new Task(){
            public void run() throws Exception {
                for (ElectingLevelDBStore store : stores) {
                    assertFalse(store.isMaster());
                }
            }
        });

        for (ElectingLevelDBStore store : stores) {
            store.stop();
        }
    }
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        });
        return f;
    }

    private ElectingLevelDBStore createStoreNode() {
        ElectingLevelDBStore store = new ElectingLevelDBStore();
        store.setSecurityToken("foo");
        store.setLogSize(1024 * 200);
        store.setReplicas(2);
        store.setZkAddress("localhost:" + connector.getLocalPort());
        store.setZkPath("/broker-stores");
        store.setBrokerName("foo");
        store.setHostname("localhost");
        store.setBind("tcp://0.0.0.0:0");
        return store;
    }
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        ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for(String dir: new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f!=null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for(CountDownFuture start: pending_starts) {
            assertFalse(start.completed());
        }

        // Make sure only of the stores is reporting to be the master.
        ElectingLevelDBStore master = null;
        for(ElectingLevelDBStore store: stores) {
            if( store.isMaster() ) {
                assertNull(master);
                master = store;
            }
        }
        assertNotNull(master);

        // We can work out who the slaves are...
        HashSet<ElectingLevelDBStore> slaves = new HashSet<ElectingLevelDBStore>(stores);
        slaves.remove(master);

        // Start sending messages to the master.
        ArrayList<String> expected_list = new ArrayList<String>();
        MessageStore ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
        final int TOTAL = 500;
        for (int i = 0; i < TOTAL; i++) {
            if (i % ((int) (TOTAL * 0.10)) == 0) {
                LOG.info("" + (100 * i / TOTAL) + "% done");
            }

            if( i == 250 ) {

                LOG.info("Checking master state");
                assertEquals(expected_list, getMessages(ms));

                // mid way, lets kill the master..
                LOG.info("Killing Master.");
                master.stop();

                // At least one of the remaining stores should complete starting.
                LOG.info("Waiting for slave takeover...");
                f = waitFor(60 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
                assertTrue(f!=null);
                pending_starts.remove(f);

                // Make sure one and only one of the slaves becomes the master..
                master = null;
                for(ElectingLevelDBStore store: slaves) {
                    if( store.isMaster() ) {
                        assertNull(master);
                        master = store;
                    }
                }

                assertNotNull(master);
                slaves.remove(master);

                ms = master.createQueueMessageStore(new ActiveMQQueue("TEST"));
            }

            String msgid = "m:" + i;
            addMessage(ms, msgid);
            expected_list.add(msgid);
        }

        LOG.info("Checking master state");
        assertEquals(expected_list, getMessages(ms));

        master.stop();
        for(ElectingLevelDBStore store: stores) {
            store.stop();
        }
    }
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        final ArrayList<ElectingLevelDBStore> stores = new ArrayList<ElectingLevelDBStore>();
        ArrayList<CountDownFuture> pending_starts = new ArrayList<CountDownFuture>();

        for (String dir : new String[]{"leveldb-node1", "leveldb-node2", "leveldb-node3"}) {
            ElectingLevelDBStore store = createStoreNode();
            store.setDirectory(new File(data_dir(), dir));
            stores.add(store);
            pending_starts.add(asyncStart(store));
        }

        // At least one of the stores should have started.
        CountDownFuture f = waitFor(30 * 1000, pending_starts.toArray(new CountDownFuture[pending_starts.size()]));
        assertTrue(f != null);
        pending_starts.remove(f);

        // The other stores should not start..
        LOG.info("Making sure the other stores don't start");
        Thread.sleep(5000);
        for (CountDownFuture start : pending_starts) {
            assertFalse(start.completed());
        }

        // Stop ZooKeeper..
        LOG.info("SHUTTING DOWN ZooKeeper!");
        connector.shutdown();

        // None of the store should be slaves...
        within( 30, TimeUnit.SECONDS, new Task(){
            public void run() throws Exception {
                for (ElectingLevelDBStore store : stores) {
                    assertFalse(store.isMaster());
                }
            }
        });

        for (ElectingLevelDBStore store : stores) {
            store.stop();
        }
    }
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        });
        return f;
    }

    private ElectingLevelDBStore createStoreNode() {
        ElectingLevelDBStore store = new ElectingLevelDBStore();
        store.setSecurityToken("foo");
        store.setLogSize(1024 * 200);
        store.setReplicas(2);
        store.setZkAddress("localhost:" + connector.getLocalPort());
        store.setZkPath("/broker-stores");
        store.setBrokerName("foo");
        store.setHostname("localhost");
        store.setBind("tcp://0.0.0.0:0");
        return store;
    }
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Related Classes of org.apache.activemq.leveldb.replicated.ElectingLevelDBStore

  • org.apache.activemq.leveldb.test.ElectingLevelDBStoreTest
  • org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest
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