Examples with Cluster voldemort.cluster.Cluster used on opensource projects

Example 26 with Cluster

use of voldemort.cluster.Cluster in project voldemort by voldemort.

the class ZonedRebalanceNonContiguousZonesTest method testShuffleZ1Z3AndShuffleAgain.

@Test(timeout = 600000)
public void testShuffleZ1Z3AndShuffleAgain() throws Exception {
    logger.info("Starting testShuffleZZAndShuffleAgain");
    // Hacky work around of TOCTOU bind Exception issues. Each test that invokes this method brings servers
    // up & down on the same ports. The OS seems to need a rest between subsequent tests...
    Thread.sleep(TimeUnit.SECONDS.toMillis(5));
    Cluster interimCluster = RebalanceUtils.getInterimCluster(z1z3Current, z1z3Shuffle);
    // start all the servers
    List<Integer> serverList = new ArrayList<Integer>(interimCluster.getNodeIds());
    Map<String, String> configProps = new HashMap<String, String>();
    configProps.put("admin.max.threads", "5");
    interimCluster = startServers(interimCluster, z1z3StoresXml, serverList, configProps);
    // Populate cluster with data
    for (StoreDefinition storeDef : z1z3Stores) {
        populateData(z1z3Current, storeDef);
    }
    String bootstrapUrl = getBootstrapUrl(interimCluster, 3);
    // Shuffle cluster
    ClusterTestUtils.RebalanceKit rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, z1z3Shuffle, z1z3Stores);
    rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, serverList);
    checkConsistentMetadata(z1z3Shuffle, serverList);
    // Now, go from shuffled state, back to the original to confirm subsequent rebalances can be invoked.
    rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, z1z3Current, z1z3Stores);
    rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, serverList);
    checkConsistentMetadata(z1z3Current, serverList);
    // Done.
    stopServer(serverList);
}

Example 27 with Cluster

use of voldemort.cluster.Cluster in project voldemort by voldemort.

the class ZonedRebalanceNonContiguousZonesTest method testRWRebalance.

@Test(timeout = 600000)
public void testRWRebalance() throws Exception {
    logger.info("Starting testRWRebalance");
    try {
        int[] zoneIds = new int[] { 1, 3 };
        int[][] nodesPerZone = new int[][] { { 3, 4 }, { 9, 10 } };
        int[][] partitionMap = new int[][] { { 0, 2, 4, 6 }, {}, { 1, 3, 5, 7 }, {} };
        Cluster currentCluster = ServerTestUtils.getLocalNonContiguousZonedCluster(zoneIds, nodesPerZone, partitionMap, ClusterTestUtils.getClusterPorts());
        Cluster finalCluster = UpdateClusterUtils.createUpdatedCluster(currentCluster, 10, Lists.newArrayList(2, 6));
        finalCluster = UpdateClusterUtils.createUpdatedCluster(finalCluster, 4, Lists.newArrayList(3, 7));
        // start all the servers
        List<Integer> serverList = Arrays.asList(3, 4, 9, 10);
        Map<String, String> configProps = new HashMap<String, String>();
        configProps.put("admin.max.threads", "5");
        currentCluster = startServers(currentCluster, storeDefFileWithoutReplication, serverList, configProps);
        String bootstrapUrl = getBootstrapUrl(currentCluster, 3);
        ClusterTestUtils.RebalanceKit rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, finalCluster);
        try {
            populateData(currentCluster, rwStoreDefWithoutReplication);
            rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, Arrays.asList(4, 9));
            checkConsistentMetadata(finalCluster, serverList);
        } finally {
            stopServer(serverList);
        }
    } catch (AssertionError ae) {
        logger.error("Assertion broken in testRWRebalance ", ae);
        throw ae;
    }
}

Example 28 with Cluster

use of voldemort.cluster.Cluster in project voldemort by voldemort.

the class ZonedRebalanceNonContiguousZonesTest method testProxyPutDuringRebalancing.

@Test(timeout = 600000)
public void testProxyPutDuringRebalancing() throws Exception {
    logger.info("Starting testProxyPutDuringRebalancing");
    try {
        int[] zoneIds = new int[] { 1, 3 };
        int[][] nodesPerZone = new int[][] { { 3, 4, 5 }, { 9, 10, 11 } };
        int[][] partitionMap = new int[][] { { 0 }, { 1, 6 }, { 2 }, { 3 }, { 4, 7 }, { 5 } };
        Cluster currentCluster = ServerTestUtils.getLocalNonContiguousZonedCluster(zoneIds, nodesPerZone, partitionMap, ClusterTestUtils.getClusterPorts());
        Cluster finalCluster = UpdateClusterUtils.createUpdatedCluster(currentCluster, 5, Lists.newArrayList(7));
        finalCluster = UpdateClusterUtils.createUpdatedCluster(finalCluster, 11, Lists.newArrayList(6));
        /**
             * Original partition map
             *
             * [s3 : p0] [s4 : p1, p6] [s5 : p2]
             *
             * [s9 : p3] [s10 : p4, p7] [s11 : p5]
             *
             * final server partition ownership
             *
             * [s3 : p0] [s4 : p1] [s5 : p2, p7]
             *
             * [s9 : p3] [s10 : p4] [s11 : p5, p6]
             *
             * Note that rwStoreDefFileWithReplication is a "2/1/1" store def.
             *
             * Original server n-ary partition ownership
             *
             * [s3 : p0, p3-7] [s4 : p0-p7] [s5 : p1-2]
             *
             * [s9 : p0-3, p6-7] [s10 : p0-p7] [s11 : p4-5]
             *
             * final server n-ary partition ownership
             *
             * [s3 : p0, p2-7] [s4 : p0-1] [s5 : p1-p7]
             *
             * [s9 : p0-3, p5-7] [s10 : p0-4, p7] [s11 : p4-6]
             */
        List<Integer> serverList = Arrays.asList(3, 4, 5, 9, 10, 11);
        Map<String, String> configProps = new HashMap<String, String>();
        configProps.put("admin.max.threads", "5");
        final Cluster updatedCurrentCluster = startServers(currentCluster, rwStoreDefFileWithReplication, serverList, configProps);
        ExecutorService executors = Executors.newFixedThreadPool(2);
        final AtomicBoolean rebalancingComplete = new AtomicBoolean(false);
        final List<Exception> exceptions = Collections.synchronizedList(new ArrayList<Exception>());
        // Its is imperative that we test in a single shot since multiple batches would mean the proxy bridges
        // being torn down and established multiple times and we cannot test against the source
        // cluster topology then. getRebalanceKit uses batch size of infinite, so this should be fine.
        String bootstrapUrl = getBootstrapUrl(updatedCurrentCluster, 3);
        int maxParallel = 2;
        final ClusterTestUtils.RebalanceKit rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, maxParallel, finalCluster);
        populateData(currentCluster, rwStoreDefWithReplication);
        final AdminClient adminClient = rebalanceKit.controller.getAdminClient();
        // the plan would cause these partitions to move:
        // Partition : Donor -> stealer
        //
        // p2 (Z-SEC) : s4 -> s3
        // p3-6 (Z-PRI) : s4 -> s5
        // p7 (Z-PRI) : s3 -> s5
        //
        // p5 (Z-SEC): s10 -> s9
        // p6 (Z-PRI): s10 -> s11
        //
        // Rebalancing will run on servers 3, 5, 9, & 11
        final List<ByteArray> movingKeysList = sampleKeysFromPartition(adminClient, 4, rwStoreDefWithReplication.getName(), Arrays.asList(6), 20);
        assertTrue("Empty list of moving keys...", movingKeysList.size() > 0);
        final AtomicBoolean rebalancingStarted = new AtomicBoolean(false);
        final AtomicBoolean proxyWritesDone = new AtomicBoolean(false);
        final HashMap<String, String> baselineTuples = new HashMap<String, String>(testEntries);
        final HashMap<String, VectorClock> baselineVersions = new HashMap<String, VectorClock>();
        for (String key : baselineTuples.keySet()) {
            baselineVersions.put(key, new VectorClock());
        }
        final CountDownLatch latch = new CountDownLatch(2);
        // start get operation.
        executors.execute(new Runnable() {

            @Override
            public void run() {
                SocketStoreClientFactory factory = null;
                try {
                    // wait for the rebalancing to begin
                    List<VoldemortServer> serverList = Lists.newArrayList(serverMap.get(3), serverMap.get(5), serverMap.get(9), serverMap.get(11));
                    while (!rebalancingComplete.get()) {
                        Iterator<VoldemortServer> serverIterator = serverList.iterator();
                        while (serverIterator.hasNext()) {
                            VoldemortServer server = serverIterator.next();
                            if (ByteUtils.getString(server.getMetadataStore().get(MetadataStore.SERVER_STATE_KEY, null).get(0).getValue(), "UTF-8").compareTo(VoldemortState.REBALANCING_MASTER_SERVER.toString()) == 0) {
                                logger.info("Server " + server.getIdentityNode().getId() + " transitioned into REBALANCING MODE");
                                serverIterator.remove();
                            }
                        }
                        if (serverList.size() == 0) {
                            rebalancingStarted.set(true);
                            break;
                        }
                    }
                    if (rebalancingStarted.get()) {
                        factory = new SocketStoreClientFactory(new ClientConfig().setBootstrapUrls(getBootstrapUrl(updatedCurrentCluster, 3)).setEnableLazy(false).setSocketTimeout(120, TimeUnit.SECONDS).setClientZoneId(3));
                        final StoreClient<String, String> storeClientRW = new DefaultStoreClient<String, String>(testStoreNameRW, null, factory, 3);
                        // Initially, all data now with zero vector clock
                        for (ByteArray movingKey : movingKeysList) {
                            try {
                                String keyStr = ByteUtils.getString(movingKey.get(), "UTF-8");
                                String valStr = "proxy_write";
                                storeClientRW.put(keyStr, valStr);
                                baselineTuples.put(keyStr, valStr);
                                baselineVersions.get(keyStr).incrementVersion(11, System.currentTimeMillis());
                                proxyWritesDone.set(true);
                                if (rebalancingComplete.get()) {
                                    break;
                                }
                            } catch (InvalidMetadataException e) {
                                logger.error("Encountered an invalid metadata exception.. ", e);
                            }
                        }
                    }
                } catch (Exception e) {
                    logger.error("Exception in proxy write thread..", e);
                    exceptions.add(e);
                } finally {
                    if (factory != null)
                        factory.close();
                    latch.countDown();
                }
            }
        });
        executors.execute(new Runnable() {

            @Override
            public void run() {
                try {
                    rebalanceKit.rebalance();
                } catch (Exception e) {
                    logger.error("Error in rebalancing... ", e);
                    exceptions.add(e);
                } finally {
                    rebalancingComplete.set(true);
                    latch.countDown();
                }
            }
        });
        latch.await();
        executors.shutdown();
        executors.awaitTermination(300, TimeUnit.SECONDS);
        assertEquals("Client did not see all server transition into rebalancing state", rebalancingStarted.get(), true);
        assertEquals("Not enough time to begin proxy writing", proxyWritesDone.get(), true);
        checkEntriesPostRebalance(updatedCurrentCluster, finalCluster, Lists.newArrayList(rwStoreDefWithReplication), Arrays.asList(3, 4, 5, 9, 10, 11), baselineTuples, baselineVersions);
        checkConsistentMetadata(finalCluster, serverList);
        // check No Exception
        if (exceptions.size() > 0) {
            for (Exception e : exceptions) {
                e.printStackTrace();
            }
            fail("Should not see any exceptions.");
        }
        // check that the proxy writes were made to the original donor, node 4
        List<ClockEntry> clockEntries = new ArrayList<ClockEntry>(serverList.size());
        for (Integer nodeid : serverList) clockEntries.add(new ClockEntry(nodeid.shortValue(), System.currentTimeMillis()));
        VectorClock clusterXmlClock = new VectorClock(clockEntries, System.currentTimeMillis());
        for (Integer nodeid : serverList) adminClient.metadataMgmtOps.updateRemoteCluster(nodeid, currentCluster, clusterXmlClock);
        adminClient.setAdminClientCluster(currentCluster);
        checkForTupleEquivalence(adminClient, 4, testStoreNameRW, movingKeysList, baselineTuples, baselineVersions);
        // stop servers
        try {
            stopServer(serverList);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    } catch (AssertionError ae) {
        logger.error("Assertion broken in testProxyPutDuringRebalancing ", ae);
        throw ae;
    }
}

Example 29 with Cluster

use of voldemort.cluster.Cluster in project voldemort by voldemort.

the class AbstractZonedRebalanceTest method testShuffleZZAndShuffleAgain.

@Test(timeout = 600000)
public void testShuffleZZAndShuffleAgain() throws Exception {
    logger.info("Starting testShuffleZZAndShuffleAgain");
    // Hacky work around of TOCTOU bind Exception issues. Each test that
    // invokes this method brings servers up & down on the same ports. The
    // OS seems to need a rest between subsequent tests...
    Thread.sleep(TimeUnit.SECONDS.toMillis(5));
    Cluster interimCluster = RebalanceUtils.getInterimCluster(zzCurrent, zzShuffle);
    // start all the servers
    List<Integer> serverList = new ArrayList<Integer>(interimCluster.getNodeIds());
    Map<String, String> configProps = new HashMap<String, String>();
    configProps.put("admin.max.threads", "5");
    interimCluster = startServers(interimCluster, zzStoresXml, serverList, configProps);
    // Populate cluster with data
    for (StoreDefinition storeDef : zzStores) {
        populateData(zzCurrent, storeDef);
    }
    String bootstrapUrl = getBootstrapUrl(interimCluster, 0);
    // Shuffle cluster
    ClusterTestUtils.RebalanceKit rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, zzShuffle, zzStores);
    rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, serverList);
    checkConsistentMetadata(zzShuffle, serverList);
    // Now, go from shuffled state, back to the original to ocnfirm
    // subsequent rebalances can be invoked.
    rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, zzCurrent, zzStores);
    rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, serverList);
    checkConsistentMetadata(zzCurrent, serverList);
    // Done.
    stopServer(serverList);
}

Example 30 with Cluster

use of voldemort.cluster.Cluster in project voldemort by voldemort.

the class AbstractZonedRebalanceTest method testZonedRebalance.

// TODO: The tests based on this method are susceptible to TOCTOU
// BindException issue since findFreePorts is used to determine the ports
// for localhost:PORT of each node.
/**
     * Scripts the execution of a specific type of zoned rebalance test: sets up
     * cluster based on cCluster plus any new nodes/zones in fCluster,
     * rebalances to fCluster, verifies rebalance was correct.
     * 
     * @param testTag For pretty printing
     * @param cCluster current cluster
     * @param fCluster final cluster
     * @param cStoresXml XML file with current stores xml
     * @param fStoresXml Unused parameter. Included for symmetry in method
     *        declaration.
     * @param cStoreDefs store defs for current cluster (from on cStoresXml)
     * @param fStoreDefs store defs for final cluster.
     * @throws Exception
     */
public void testZonedRebalance(String testTag, Cluster cCluster, Cluster fCluster, String cStoresXml, String fStoresXml, List<StoreDefinition> cStoreDefs, List<StoreDefinition> fStoreDefs) throws Exception {
    logger.info("Starting " + testTag);
    // Hacky work around of TOCTOU bind Exception issues. Each test that
    // invokes this method brings servers up & down on the same ports. The
    // OS seems to need a rest between subsequent tests...
    Thread.sleep(TimeUnit.SECONDS.toMillis(5));
    try {
        Cluster interimCluster = RebalanceUtils.getInterimCluster(cCluster, fCluster);
        // start all the servers
        List<Integer> serverList = new ArrayList<Integer>(interimCluster.getNodeIds());
        Map<String, String> configProps = new HashMap<String, String>();
        configProps.put("admin.max.threads", "5");
        interimCluster = startServers(interimCluster, cStoresXml, serverList, configProps);
        String bootstrapUrl = getBootstrapUrl(interimCluster, 0);
        ClusterTestUtils.RebalanceKit rebalanceKit = ClusterTestUtils.getRebalanceKit(bootstrapUrl, fCluster, fStoreDefs);
        try {
            for (StoreDefinition storeDef : cStoreDefs) {
                populateData(cCluster, storeDef);
            }
            rebalanceAndCheck(rebalanceKit.plan, rebalanceKit.controller, serverList);
            checkConsistentMetadata(fCluster, serverList);
        } finally {
            // stop servers
            stopServer(serverList);
        }
    } catch (AssertionError ae) {
        logger.error("Assertion broken in " + testTag + " : ", ae);
        throw ae;
    }
}