Examples with ExternalView org.apache.helix.model.ExternalView used on opensource projects

Example 16 with ExternalView

use of org.apache.helix.model.ExternalView in project pinot by linkedin.

the class TableViews method getExternalView.

@Nullable
public Map<String, Map<String, String>> getExternalView(@Nonnull String tableNameOptType, TableType tableType) {
    String tableName = getTableName(tableNameOptType, tableType);
    ExternalView resourceEV = _pinotHelixResourceManager.getHelixAdmin().getResourceExternalView(_pinotHelixResourceManager.getHelixClusterName(), tableName);
    return resourceEV == null ? null : resourceEV.getRecord().getMapFields();
}

Example 17 with ExternalView

use of org.apache.helix.model.ExternalView in project pinot by linkedin.

the class RoutingTableTest method testTimeBoundaryRegression.

@Test
public void testTimeBoundaryRegression() throws Exception {
    final FakePropertyStore propertyStore = new FakePropertyStore();
    final OfflineSegmentZKMetadata offlineSegmentZKMetadata = new OfflineSegmentZKMetadata();
    offlineSegmentZKMetadata.setTimeUnit(TimeUnit.DAYS);
    offlineSegmentZKMetadata.setEndTime(1234L);
    propertyStore.setContents(ZKMetadataProvider.constructPropertyStorePathForSegment("myTable_OFFLINE", "someSegment_0"), offlineSegmentZKMetadata.toZNRecord());
    final ExternalView offlineExternalView = new ExternalView("myTable_OFFLINE");
    offlineExternalView.setState("someSegment_0", "Server_1.2.3.4_1234", "ONLINE");
    final MutableBoolean timeBoundaryUpdated = new MutableBoolean(false);
    HelixExternalViewBasedRouting routingTable = new HelixExternalViewBasedRouting(propertyStore, NO_LLC_ROUTING, null, new BaseConfiguration()) {

        @Override
        protected ExternalView fetchExternalView(String table) {
            return offlineExternalView;
        }

        @Override
        protected void updateTimeBoundary(String tableName, ExternalView externalView) {
            if (tableName.equals("myTable_OFFLINE")) {
                timeBoundaryUpdated.setValue(true);
            }
        }
    };
    routingTable.setBrokerMetrics(new BrokerMetrics(new MetricsRegistry()));
    Assert.assertFalse(timeBoundaryUpdated.booleanValue());
    final ArrayList<InstanceConfig> instanceConfigList = new ArrayList<>();
    instanceConfigList.add(new InstanceConfig("Server_1.2.3.4_1234"));
    routingTable.markDataResourceOnline("myTable_OFFLINE", offlineExternalView, instanceConfigList);
    routingTable.markDataResourceOnline("myTable_REALTIME", new ExternalView("myTable_REALTIME"), null);
    Assert.assertTrue(timeBoundaryUpdated.booleanValue());
}

Example 18 with ExternalView

use of org.apache.helix.model.ExternalView in project pinot by linkedin.

the class RoutingTableTest method testKafkaHighLevelConsumerBasedRoutingTable.

@Test
public void testKafkaHighLevelConsumerBasedRoutingTable() throws Exception {
    RoutingTableBuilder routingStrategy = new KafkaHighLevelConsumerBasedRoutingTableBuilder();
    final String group0 = "testResource0_REALTIME_1433316466991_0";
    final String group1 = "testResource1_REALTIME_1433316490099_1";
    final String group2 = "testResource2_REALTIME_1436589344583_1";
    final LLCSegmentName llcSegmentName = new LLCSegmentName("testResource0", 2, 65, System.currentTimeMillis());
    HelixExternalViewBasedRouting routingTable = new HelixExternalViewBasedRouting(null, NO_LLC_ROUTING, null, new BaseConfiguration());
    Field realtimeRTBField = HelixExternalViewBasedRouting.class.getDeclaredField("_realtimeHLCRoutingTableBuilder");
    realtimeRTBField.setAccessible(true);
    realtimeRTBField.set(routingTable, routingStrategy);
    ExternalView externalView = new ExternalView("testResource0_REALTIME");
    // Toss in an llc segment in the mix. Should not affect the results
    externalView.setState(llcSegmentName.getSegmentName(), "dataServer_instance_0", "CONSUMING");
    externalView.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "0").getSegmentName(), "dataServer_instance_0", "ONLINE");
    externalView.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "1").getSegmentName(), "dataServer_instance_1", "ONLINE");
    externalView.setState(new HLCSegmentName(group1, ALL_PARTITIONS, "2").getSegmentName(), "dataServer_instance_2", "ONLINE");
    externalView.setState(new HLCSegmentName(group1, ALL_PARTITIONS, "3").getSegmentName(), "dataServer_instance_3", "ONLINE");
    externalView.setState(new HLCSegmentName(group2, ALL_PARTITIONS, "4").getSegmentName(), "dataServer_instance_4", "ONLINE");
    externalView.setState(new HLCSegmentName(group2, ALL_PARTITIONS, "5").getSegmentName(), "dataServer_instance_5", "ONLINE");
    routingTable.markDataResourceOnline("testResource0_REALTIME", externalView, generateInstanceConfigs("dataServer_instance", 0, 5));
    ExternalView externalView1 = new ExternalView("testResource1_REALTIME");
    externalView1.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "10").getSegmentName(), "dataServer_instance_10", "ONLINE");
    externalView1.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "11").getSegmentName(), "dataServer_instance_11", "ONLINE");
    externalView1.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "12").getSegmentName(), "dataServer_instance_12", "ONLINE");
    routingTable.markDataResourceOnline("testResource1_REALTIME", externalView1, generateInstanceConfigs("dataServer_instance", 10, 12));
    ExternalView externalView2 = new ExternalView("testResource2_REALTIME");
    externalView2.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "20").getSegmentName(), "dataServer_instance_20", "ONLINE");
    externalView2.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "21").getSegmentName(), "dataServer_instance_21", "ONLINE");
    externalView2.setState(new HLCSegmentName(group0, ALL_PARTITIONS, "22").getSegmentName(), "dataServer_instance_22", "ONLINE");
    externalView2.setState(new HLCSegmentName(group1, ALL_PARTITIONS, "23").getSegmentName(), "dataServer_instance_23", "ONLINE");
    externalView2.setState(new HLCSegmentName(group1, ALL_PARTITIONS, "24").getSegmentName(), "dataServer_instance_24", "ONLINE");
    externalView2.setState(new HLCSegmentName(group1, ALL_PARTITIONS, "25").getSegmentName(), "dataServer_instance_25", "ONLINE");
    externalView2.setState(new HLCSegmentName(group2, ALL_PARTITIONS, "26").getSegmentName(), "dataServer_instance_26", "ONLINE");
    externalView2.setState(new HLCSegmentName(group2, ALL_PARTITIONS, "27").getSegmentName(), "dataServer_instance_27", "ONLINE");
    externalView2.setState(new HLCSegmentName(group2, ALL_PARTITIONS, "28").getSegmentName(), "dataServer_instance_28", "ONLINE");
    routingTable.markDataResourceOnline("testResource2_REALTIME", externalView2, generateInstanceConfigs("dataServer_instance", 20, 28));
    for (int numRun = 0; numRun < 100; ++numRun) {
        assertResourceRequest(routingTable, "testResource0_REALTIME", new String[] { "[" + new HLCSegmentName(group0, ALL_PARTITIONS, "0").getSegmentName() + ", " + new HLCSegmentName(group0, ALL_PARTITIONS, "1").getSegmentName() + "]", "[" + new HLCSegmentName(group1, ALL_PARTITIONS, "2").getSegmentName() + ", " + new HLCSegmentName(group1, ALL_PARTITIONS, "3").getSegmentName() + "]", "[" + new HLCSegmentName(group2, ALL_PARTITIONS, "4").getSegmentName() + ", " + new HLCSegmentName(group2, ALL_PARTITIONS, "5").getSegmentName() + "]" }, 2);
    }
    for (int numRun = 0; numRun < 100; ++numRun) {
        assertResourceRequest(routingTable, "testResource1_REALTIME", new String[] { "[" + new HLCSegmentName(group0, ALL_PARTITIONS, "10").getSegmentName() + ", " + new HLCSegmentName(group0, ALL_PARTITIONS, "11").getSegmentName() + ", " + new HLCSegmentName(group0, ALL_PARTITIONS, "12").getSegmentName() + "]" }, 3);
    }
    for (int numRun = 0; numRun < 100; ++numRun) {
        assertResourceRequest(routingTable, "testResource2_REALTIME", new String[] { "[" + new HLCSegmentName(group0, ALL_PARTITIONS, "20").getSegmentName() + ", " + new HLCSegmentName(group0, ALL_PARTITIONS, "21").getSegmentName() + ", " + new HLCSegmentName(group0, ALL_PARTITIONS, "22").getSegmentName() + "]", "[" + new HLCSegmentName(group1, ALL_PARTITIONS, "23").getSegmentName() + ", " + new HLCSegmentName(group1, ALL_PARTITIONS, "24").getSegmentName() + ", " + new HLCSegmentName(group1, ALL_PARTITIONS, "25").getSegmentName() + "]", "[" + new HLCSegmentName(group2, ALL_PARTITIONS, "26").getSegmentName() + ", " + new HLCSegmentName(group2, ALL_PARTITIONS, "27").getSegmentName() + ", " + new HLCSegmentName(group2, ALL_PARTITIONS, "28").getSegmentName() + "]" }, 3);
    }
}

Example 19 with ExternalView

use of org.apache.helix.model.ExternalView in project pinot by linkedin.

the class RoutingTableTest method testCombinedKafkaRouting.

// Test that we can switch between llc and hlc routing depending on what the selector tells us.
@Test
public void testCombinedKafkaRouting() throws Exception {
    HelixExternalViewBasedRouting routingTable = new HelixExternalViewBasedRouting(null, NO_LLC_ROUTING, null, new BaseConfiguration());
    final long now = System.currentTimeMillis();
    final String tableName = "table";
    final String resourceName = tableName + "_REALTIME";
    final String group1 = resourceName + "_" + Long.toString(now) + "_0";
    final String group2 = resourceName + "_" + Long.toString(now) + "_1";
    final String online = "ONLINE";
    final String consuming = "CONSUMING";
    final int partitionId = 1;
    final String partitionRange = "JUNK";
    final int segId1 = 1;
    final int segId2 = 2;
    final int port1 = 1;
    final int port2 = 2;
    final String host = "host";
    final ServerInstance serverInstance1 = new ServerInstance(host, port1);
    final ServerInstance serverInstance2 = new ServerInstance(host, port2);
    final String helixInstance1 = CommonConstants.Helix.PREFIX_OF_SERVER_INSTANCE + serverInstance1;
    final String helixInstance2 = CommonConstants.Helix.PREFIX_OF_SERVER_INSTANCE + serverInstance2;
    final HLCSegmentName s1HlcSegment1 = new HLCSegmentName(group1, partitionRange, Integer.toString(segId1));
    final HLCSegmentName s1HlcSegment2 = new HLCSegmentName(group1, partitionRange, Integer.toString(segId2));
    final HLCSegmentName s2HlcSegment1 = new HLCSegmentName(group2, partitionRange, Integer.toString(segId1));
    final HLCSegmentName s2HlcSegment2 = new HLCSegmentName(group2, partitionRange, Integer.toString(segId2));
    final LLCSegmentName llcSegment1 = new LLCSegmentName(tableName, partitionId, segId1, now);
    final LLCSegmentName llcSegment2 = new LLCSegmentName(tableName, partitionId, segId2, now);
    final List<InstanceConfig> instanceConfigs = new ArrayList<>(2);
    instanceConfigs.add(new InstanceConfig(helixInstance1));
    instanceConfigs.add(new InstanceConfig(helixInstance2));
    ExternalView ev = new ExternalView(resourceName);
    ev.setState(s1HlcSegment1.getSegmentName(), helixInstance1, online);
    ev.setState(s1HlcSegment2.getSegmentName(), helixInstance1, online);
    ev.setState(llcSegment1.getSegmentName(), helixInstance2, online);
    ev.setState(llcSegment2.getSegmentName(), helixInstance2, consuming);
    routingTable.markDataResourceOnline(resourceName, ev, instanceConfigs);
    RoutingTableLookupRequest request = new RoutingTableLookupRequest(resourceName, Collections.<String>emptyList());
    for (int i = 0; i < 100; i++) {
        Map<ServerInstance, SegmentIdSet> routingMap = routingTable.findServers(request);
        Assert.assertEquals(routingMap.size(), 1);
        List<String> segments = routingMap.get(serverInstance1).getSegmentsNameList();
        Assert.assertEquals(segments.size(), 2);
        Assert.assertTrue(segments.contains(s1HlcSegment1.getSegmentName()));
        Assert.assertTrue(segments.contains(s1HlcSegment2.getSegmentName()));
    }
    // Now change the percent value in the routing table selector to be 100, and we should get only LLC segments.
    Configuration configuration = new PropertiesConfiguration();
    configuration.addProperty("class", PercentageBasedRoutingTableSelector.class.getName());
    configuration.addProperty("table." + resourceName, new Integer(100));
    RoutingTableSelector selector = RoutingTableSelectorFactory.getRoutingTableSelector(configuration, null);
    selector.init(configuration, null);
    Field selectorField = HelixExternalViewBasedRouting.class.getDeclaredField("_routingTableSelector");
    selectorField.setAccessible(true);
    selectorField.set(routingTable, selector);
    // And we should find only LLC segments.
    for (int i = 0; i < 100; i++) {
        Map<ServerInstance, SegmentIdSet> routingMap = routingTable.findServers(request);
        Assert.assertEquals(routingMap.size(), 1);
        List<String> segments = routingMap.get(serverInstance2).getSegmentsNameList();
        Assert.assertEquals(segments.size(), 2);
        Assert.assertTrue(segments.contains(llcSegment1.getSegmentName()));
        Assert.assertTrue(segments.contains(llcSegment2.getSegmentName()));
    }
    // Now change it to 50, and we should find both (at least 10 times each).
    configuration = new PropertiesConfiguration();
    configuration.addProperty("table." + resourceName, new Integer(50));
    selector = new PercentageBasedRoutingTableSelector();
    selector.init(configuration, null);
    selectorField.set(routingTable, selector);
    int hlc = 0;
    int llc = 0;
    for (int i = 0; i < 100; i++) {
        Map<ServerInstance, SegmentIdSet> routingMap = routingTable.findServers(request);
        Assert.assertEquals(routingMap.size(), 1);
        if (routingMap.containsKey(serverInstance2)) {
            List<String> segments = routingMap.get(serverInstance2).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(llcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(llcSegment2.getSegmentName()));
            llc++;
        } else {
            List<String> segments = routingMap.get(serverInstance1).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(s1HlcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(s1HlcSegment2.getSegmentName()));
            hlc++;
        }
    }
    // If we do the above iteration 100 times, we should get at least 10 of each type of routing.
    // If this test fails
    Assert.assertTrue(hlc >= 10, "Got low values hlc=" + hlc + ",llc=" + llc);
    Assert.assertTrue(llc >= 10, "Got low values hlc=" + hlc + ",llc=" + llc);
    // Check that force HLC works
    request = new RoutingTableLookupRequest(resourceName, Collections.singletonList("FORCE_HLC"));
    hlc = 0;
    llc = 0;
    for (int i = 0; i < 100; i++) {
        Map<ServerInstance, SegmentIdSet> routingMap = routingTable.findServers(request);
        Assert.assertEquals(routingMap.size(), 1);
        if (routingMap.containsKey(serverInstance2)) {
            List<String> segments = routingMap.get(serverInstance2).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(llcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(llcSegment2.getSegmentName()));
            llc++;
        } else {
            List<String> segments = routingMap.get(serverInstance1).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(s1HlcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(s1HlcSegment2.getSegmentName()));
            hlc++;
        }
    }
    Assert.assertEquals(hlc, 100);
    Assert.assertEquals(llc, 0);
    // Check that force LLC works
    request = new RoutingTableLookupRequest(resourceName, Collections.singletonList("FORCE_LLC"));
    hlc = 0;
    llc = 0;
    for (int i = 0; i < 100; i++) {
        Map<ServerInstance, SegmentIdSet> routingMap = routingTable.findServers(request);
        Assert.assertEquals(routingMap.size(), 1);
        if (routingMap.containsKey(serverInstance2)) {
            List<String> segments = routingMap.get(serverInstance2).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(llcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(llcSegment2.getSegmentName()));
            llc++;
        } else {
            List<String> segments = routingMap.get(serverInstance1).getSegmentsNameList();
            Assert.assertEquals(segments.size(), 2);
            Assert.assertTrue(segments.contains(s1HlcSegment1.getSegmentName()));
            Assert.assertTrue(segments.contains(s1HlcSegment2.getSegmentName()));
            hlc++;
        }
    }
    Assert.assertEquals(hlc, 0);
    Assert.assertEquals(llc, 100);
}

Example 20 with ExternalView

use of org.apache.helix.model.ExternalView in project pinot by linkedin.

the class BalancedRandomRoutingTableBuilderTest method isRandom.

@Test
public void isRandom() {
    // Build dummy external view
    BalancedRandomRoutingTableBuilder routingTableBuilder = new BalancedRandomRoutingTableBuilder();
    List<InstanceConfig> instanceConfigList = new ArrayList<>();
    ExternalView externalView = new ExternalView("dummy");
    externalView.setState("segment_1", "Server_1.2.3.4_1234", "ONLINE");
    externalView.setState("segment_1", "Server_1.2.3.5_2345", "ONLINE");
    externalView.setState("segment_1", "Server_1.2.3.6_3456", "ONLINE");
    externalView.setState("segment_2", "Server_1.2.3.4_1234", "ONLINE");
    externalView.setState("segment_2", "Server_1.2.3.5_2345", "ONLINE");
    externalView.setState("segment_2", "Server_1.2.3.6_3456", "ONLINE");
    externalView.setState("segment_3", "Server_1.2.3.4_1234", "ONLINE");
    externalView.setState("segment_3", "Server_1.2.3.5_2345", "ONLINE");
    externalView.setState("segment_3", "Server_1.2.3.6_3456", "ONLINE");
    // Create configs for above instances.
    instanceConfigList.add(new InstanceConfig("Server_1.2.3.4_1234"));
    instanceConfigList.add(new InstanceConfig("Server_1.2.3.5_2345"));
    instanceConfigList.add(new InstanceConfig("Server_1.2.3.6_3456"));
    // Build routing table
    List<ServerToSegmentSetMap> routingTable = routingTableBuilder.computeRoutingTableFromExternalView("dummy", externalView, instanceConfigList);
    // Check that at least two routing tables are different
    Iterator<ServerToSegmentSetMap> routingTableIterator = routingTable.iterator();
    ServerToSegmentSetMap previous = routingTableIterator.next();
    while (routingTableIterator.hasNext()) {
        ServerToSegmentSetMap current = routingTableIterator.next();
        //      System.out.println("previous = " + previous);
        if (!current.equals(previous)) {
            // Routing tables differ, test is successful
            return;
        }
    }
    Assert.fail("All routing tables are equal!");
}