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Example 1 with CompactSegments

use of org.apache.druid.server.coordinator.duty.CompactSegments in project druid by druid-io.

the class DruidCoordinatorTest method testInitializeCompactSegmentsDutyWhenCustomDutyGroupDoesNotContainsCompactSegments.

@Test
public void testInitializeCompactSegmentsDutyWhenCustomDutyGroupDoesNotContainsCompactSegments() {
    CoordinatorCustomDutyGroup group = new CoordinatorCustomDutyGroup("group1", Duration.standardSeconds(1), ImmutableList.of(new KillSupervisorsCustomDuty(new Duration("PT1S"), null)));
    CoordinatorCustomDutyGroups customDutyGroups = new CoordinatorCustomDutyGroups(ImmutableSet.of(group));
    coordinator = new DruidCoordinator(druidCoordinatorConfig, new ZkPathsConfig() {

        @Override
        public String getBase() {
            return "druid";
        }
    }, null, segmentsMetadataManager, serverInventoryView, metadataRuleManager, () -> curator, serviceEmitter, scheduledExecutorFactory, null, null, new NoopServiceAnnouncer() {

        @Override
        public void announce(DruidNode node) {
            // count down when this coordinator becomes the leader
            leaderAnnouncerLatch.countDown();
        }

        @Override
        public void unannounce(DruidNode node) {
            leaderUnannouncerLatch.countDown();
        }
    }, druidNode, loadManagementPeons, ImmutableSet.of(), new HashSet<>(), customDutyGroups, new CostBalancerStrategyFactory(), EasyMock.createNiceMock(LookupCoordinatorManager.class), new TestDruidLeaderSelector(), null, ZkEnablementConfig.ENABLED);
    // Since CompactSegments is not enabled in Custom Duty Group, then CompactSegments must be created in IndexingServiceDuties
    List<CoordinatorDuty> indexingDuties = coordinator.makeIndexingServiceDuties();
    Assert.assertTrue(indexingDuties.stream().anyMatch(coordinatorDuty -> coordinatorDuty instanceof CompactSegments));
    // CompactSegments should not exist in Custom Duty Group
    List<CompactSegments> compactSegmentsDutyFromCustomGroups = coordinator.getCompactSegmentsDutyFromCustomGroups();
    Assert.assertTrue(compactSegmentsDutyFromCustomGroups.isEmpty());
    // CompactSegments returned by this method should be created using the DruidCoordinatorConfig in the DruidCoordinator
    CompactSegments duty = coordinator.initializeCompactSegmentsDuty();
    Assert.assertNotNull(duty);
    Assert.assertEquals(druidCoordinatorConfig.getCompactionSkipLockedIntervals(), duty.isSkipLockedIntervals());
}
Also used : LookupCoordinatorManager(org.apache.druid.server.lookup.cache.LookupCoordinatorManager) IntervalLoadRule(org.apache.druid.server.coordinator.rules.IntervalLoadRule) DruidServer(org.apache.druid.client.DruidServer) JacksonConfigManager(org.apache.druid.common.config.JacksonConfigManager) ForeverBroadcastDistributionRule(org.apache.druid.server.coordinator.rules.ForeverBroadcastDistributionRule) Event(org.apache.druid.java.util.emitter.core.Event) After(org.junit.After) Map(java.util.Map) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) ServerType(org.apache.druid.server.coordination.ServerType) ForeverLoadRule(org.apache.druid.server.coordinator.rules.ForeverLoadRule) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) ImmutableSet(com.google.common.collect.ImmutableSet) Execs(org.apache.druid.java.util.common.concurrent.Execs) ImmutableMap(com.google.common.collect.ImmutableMap) ConcurrentHashMap(java.util.concurrent.ConcurrentHashMap) CoordinatorCustomDutyGroup(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroup) Rule(org.apache.druid.server.coordinator.rules.Rule) CuratorUtils(org.apache.druid.curator.CuratorUtils) Executors(java.util.concurrent.Executors) CountDownLatch(java.util.concurrent.CountDownLatch) List(java.util.List) CuratorFramework(org.apache.curator.framework.CuratorFramework) KillSupervisorsCustomDuty(org.apache.druid.server.coordinator.duty.KillSupervisorsCustomDuty) ServiceEmitter(org.apache.druid.java.util.emitter.service.ServiceEmitter) PathChildrenCacheEvent(org.apache.curator.framework.recipes.cache.PathChildrenCacheEvent) DruidLeaderSelector(org.apache.druid.discovery.DruidLeaderSelector) DataSegment(org.apache.druid.timeline.DataSegment) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) SegmentId(org.apache.druid.timeline.SegmentId) ListeningExecutorService(com.google.common.util.concurrent.ListeningExecutorService) DruidDataSource(org.apache.druid.client.DruidDataSource) MetadataRuleManager(org.apache.druid.metadata.MetadataRuleManager) Intervals(org.apache.druid.java.util.common.Intervals) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) Duration(org.joda.time.Duration) ZkEnablementConfig(org.apache.druid.curator.ZkEnablementConfig) DataSourcesSnapshot(org.apache.druid.client.DataSourcesSnapshot) AtomicReference(java.util.concurrent.atomic.AtomicReference) ScheduledExecutorFactory(org.apache.druid.java.util.common.concurrent.ScheduledExecutorFactory) ConcurrentMap(java.util.concurrent.ConcurrentMap) HashSet(java.util.HashSet) Object2LongMap(it.unimi.dsi.fastutil.objects.Object2LongMap) ImmutableList(com.google.common.collect.ImmutableList) DruidServerMetadata(org.apache.druid.server.coordination.DruidServerMetadata) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) ScheduledExecutorService(java.util.concurrent.ScheduledExecutorService) ImmutableDruidDataSource(org.apache.druid.client.ImmutableDruidDataSource) ImmutableDruidServer(org.apache.druid.client.ImmutableDruidServer) Nullable(javax.annotation.Nullable) Before(org.junit.Before) Capture(org.easymock.Capture) SegmentsMetadataManager(org.apache.druid.metadata.SegmentsMetadataManager) ObjectMapper(com.fasterxml.jackson.databind.ObjectMapper) Test(org.junit.Test) EasyMock(org.easymock.EasyMock) DefaultObjectMapper(org.apache.druid.jackson.DefaultObjectMapper) CuratorTestBase(org.apache.druid.curator.CuratorTestBase) Object2IntMap(it.unimi.dsi.fastutil.objects.Object2IntMap) CoordinatorCustomDuty(org.apache.druid.server.coordinator.duty.CoordinatorCustomDuty) DruidNode(org.apache.druid.server.DruidNode) PathChildrenCache(org.apache.curator.framework.recipes.cache.PathChildrenCache) Assert(org.junit.Assert) Collections(java.util.Collections) BatchServerInventoryView(org.apache.druid.client.BatchServerInventoryView) KillSupervisorsCustomDuty(org.apache.druid.server.coordinator.duty.KillSupervisorsCustomDuty) Duration(org.joda.time.Duration) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) DruidNode(org.apache.druid.server.DruidNode) CoordinatorCustomDutyGroup(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroup) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 2 with CompactSegments

use of org.apache.druid.server.coordinator.duty.CompactSegments in project druid by druid-io.

the class DruidCoordinatorTest method testCompactSegmentsDutyWhenCustomDutyGroupEmpty.

@Test
public void testCompactSegmentsDutyWhenCustomDutyGroupEmpty() {
    CoordinatorCustomDutyGroups emptyCustomDutyGroups = new CoordinatorCustomDutyGroups(ImmutableSet.of());
    coordinator = new DruidCoordinator(druidCoordinatorConfig, new ZkPathsConfig() {

        @Override
        public String getBase() {
            return "druid";
        }
    }, null, segmentsMetadataManager, serverInventoryView, metadataRuleManager, () -> curator, serviceEmitter, scheduledExecutorFactory, null, null, new NoopServiceAnnouncer() {

        @Override
        public void announce(DruidNode node) {
            // count down when this coordinator becomes the leader
            leaderAnnouncerLatch.countDown();
        }

        @Override
        public void unannounce(DruidNode node) {
            leaderUnannouncerLatch.countDown();
        }
    }, druidNode, loadManagementPeons, ImmutableSet.of(), new HashSet<>(), emptyCustomDutyGroups, new CostBalancerStrategyFactory(), EasyMock.createNiceMock(LookupCoordinatorManager.class), new TestDruidLeaderSelector(), null, ZkEnablementConfig.ENABLED);
    // Since CompactSegments is not enabled in Custom Duty Group, then CompactSegments must be created in IndexingServiceDuties
    List<CoordinatorDuty> indexingDuties = coordinator.makeIndexingServiceDuties();
    Assert.assertTrue(indexingDuties.stream().anyMatch(coordinatorDuty -> coordinatorDuty instanceof CompactSegments));
    // CompactSegments should not exist in Custom Duty Group
    List<CompactSegments> compactSegmentsDutyFromCustomGroups = coordinator.getCompactSegmentsDutyFromCustomGroups();
    Assert.assertTrue(compactSegmentsDutyFromCustomGroups.isEmpty());
    // CompactSegments returned by this method should be created using the DruidCoordinatorConfig in the DruidCoordinator
    CompactSegments duty = coordinator.initializeCompactSegmentsDuty();
    Assert.assertNotNull(duty);
    Assert.assertEquals(druidCoordinatorConfig.getCompactionSkipLockedIntervals(), duty.isSkipLockedIntervals());
}
Also used : LookupCoordinatorManager(org.apache.druid.server.lookup.cache.LookupCoordinatorManager) IntervalLoadRule(org.apache.druid.server.coordinator.rules.IntervalLoadRule) DruidServer(org.apache.druid.client.DruidServer) JacksonConfigManager(org.apache.druid.common.config.JacksonConfigManager) ForeverBroadcastDistributionRule(org.apache.druid.server.coordinator.rules.ForeverBroadcastDistributionRule) Event(org.apache.druid.java.util.emitter.core.Event) After(org.junit.After) Map(java.util.Map) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) ServerType(org.apache.druid.server.coordination.ServerType) ForeverLoadRule(org.apache.druid.server.coordinator.rules.ForeverLoadRule) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) ImmutableSet(com.google.common.collect.ImmutableSet) Execs(org.apache.druid.java.util.common.concurrent.Execs) ImmutableMap(com.google.common.collect.ImmutableMap) ConcurrentHashMap(java.util.concurrent.ConcurrentHashMap) CoordinatorCustomDutyGroup(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroup) Rule(org.apache.druid.server.coordinator.rules.Rule) CuratorUtils(org.apache.druid.curator.CuratorUtils) Executors(java.util.concurrent.Executors) CountDownLatch(java.util.concurrent.CountDownLatch) List(java.util.List) CuratorFramework(org.apache.curator.framework.CuratorFramework) KillSupervisorsCustomDuty(org.apache.druid.server.coordinator.duty.KillSupervisorsCustomDuty) ServiceEmitter(org.apache.druid.java.util.emitter.service.ServiceEmitter) PathChildrenCacheEvent(org.apache.curator.framework.recipes.cache.PathChildrenCacheEvent) DruidLeaderSelector(org.apache.druid.discovery.DruidLeaderSelector) DataSegment(org.apache.druid.timeline.DataSegment) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) SegmentId(org.apache.druid.timeline.SegmentId) ListeningExecutorService(com.google.common.util.concurrent.ListeningExecutorService) DruidDataSource(org.apache.druid.client.DruidDataSource) MetadataRuleManager(org.apache.druid.metadata.MetadataRuleManager) Intervals(org.apache.druid.java.util.common.Intervals) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) Duration(org.joda.time.Duration) ZkEnablementConfig(org.apache.druid.curator.ZkEnablementConfig) DataSourcesSnapshot(org.apache.druid.client.DataSourcesSnapshot) AtomicReference(java.util.concurrent.atomic.AtomicReference) ScheduledExecutorFactory(org.apache.druid.java.util.common.concurrent.ScheduledExecutorFactory) ConcurrentMap(java.util.concurrent.ConcurrentMap) HashSet(java.util.HashSet) Object2LongMap(it.unimi.dsi.fastutil.objects.Object2LongMap) ImmutableList(com.google.common.collect.ImmutableList) DruidServerMetadata(org.apache.druid.server.coordination.DruidServerMetadata) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) ScheduledExecutorService(java.util.concurrent.ScheduledExecutorService) ImmutableDruidDataSource(org.apache.druid.client.ImmutableDruidDataSource) ImmutableDruidServer(org.apache.druid.client.ImmutableDruidServer) Nullable(javax.annotation.Nullable) Before(org.junit.Before) Capture(org.easymock.Capture) SegmentsMetadataManager(org.apache.druid.metadata.SegmentsMetadataManager) ObjectMapper(com.fasterxml.jackson.databind.ObjectMapper) Test(org.junit.Test) EasyMock(org.easymock.EasyMock) DefaultObjectMapper(org.apache.druid.jackson.DefaultObjectMapper) CuratorTestBase(org.apache.druid.curator.CuratorTestBase) Object2IntMap(it.unimi.dsi.fastutil.objects.Object2IntMap) CoordinatorCustomDuty(org.apache.druid.server.coordinator.duty.CoordinatorCustomDuty) DruidNode(org.apache.druid.server.DruidNode) PathChildrenCache(org.apache.curator.framework.recipes.cache.PathChildrenCache) Assert(org.junit.Assert) Collections(java.util.Collections) BatchServerInventoryView(org.apache.druid.client.BatchServerInventoryView) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) DruidNode(org.apache.druid.server.DruidNode) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 3 with CompactSegments

use of org.apache.druid.server.coordinator.duty.CompactSegments in project druid by druid-io.

the class DruidCoordinatorTest method testInitializeCompactSegmentsDutyWhenCustomDutyGroupContainsCompactSegments.

@Test
public void testInitializeCompactSegmentsDutyWhenCustomDutyGroupContainsCompactSegments() {
    DruidCoordinatorConfig differentConfigUsedInCustomGroup = new TestDruidCoordinatorConfig(new Duration(COORDINATOR_START_DELAY), new Duration(COORDINATOR_PERIOD), null, null, null, new Duration(COORDINATOR_PERIOD), null, null, null, null, null, null, null, null, null, null, 10, new Duration("PT0s"), false);
    CoordinatorCustomDutyGroup compactSegmentCustomGroup = new CoordinatorCustomDutyGroup("group1", Duration.standardSeconds(1), ImmutableList.of(new CompactSegments(differentConfigUsedInCustomGroup, null, null)));
    CoordinatorCustomDutyGroups customDutyGroups = new CoordinatorCustomDutyGroups(ImmutableSet.of(compactSegmentCustomGroup));
    coordinator = new DruidCoordinator(druidCoordinatorConfig, new ZkPathsConfig() {

        @Override
        public String getBase() {
            return "druid";
        }
    }, null, segmentsMetadataManager, serverInventoryView, metadataRuleManager, () -> curator, serviceEmitter, scheduledExecutorFactory, null, null, new NoopServiceAnnouncer() {

        @Override
        public void announce(DruidNode node) {
            // count down when this coordinator becomes the leader
            leaderAnnouncerLatch.countDown();
        }

        @Override
        public void unannounce(DruidNode node) {
            leaderUnannouncerLatch.countDown();
        }
    }, druidNode, loadManagementPeons, ImmutableSet.of(), new HashSet<>(), customDutyGroups, new CostBalancerStrategyFactory(), EasyMock.createNiceMock(LookupCoordinatorManager.class), new TestDruidLeaderSelector(), null, ZkEnablementConfig.ENABLED);
    // Since CompactSegments is enabled in Custom Duty Group, then CompactSegments must not be created in IndexingServiceDuties
    List<CoordinatorDuty> indexingDuties = coordinator.makeIndexingServiceDuties();
    Assert.assertTrue(indexingDuties.stream().noneMatch(coordinatorDuty -> coordinatorDuty instanceof CompactSegments));
    // CompactSegments should exist in Custom Duty Group
    List<CompactSegments> compactSegmentsDutyFromCustomGroups = coordinator.getCompactSegmentsDutyFromCustomGroups();
    Assert.assertFalse(compactSegmentsDutyFromCustomGroups.isEmpty());
    Assert.assertEquals(1, compactSegmentsDutyFromCustomGroups.size());
    Assert.assertNotNull(compactSegmentsDutyFromCustomGroups.get(0));
    Assert.assertTrue(compactSegmentsDutyFromCustomGroups.get(0) instanceof CompactSegments);
    // CompactSegments returned by this method should be from the Custom Duty Group
    CompactSegments duty = coordinator.initializeCompactSegmentsDuty();
    Assert.assertNotNull(duty);
    Assert.assertNotEquals(druidCoordinatorConfig.getCompactionSkipLockedIntervals(), duty.isSkipLockedIntervals());
    // We should get the CompactSegment from the custom duty group which was created with a different config than the config in DruidCoordinator
    Assert.assertEquals(differentConfigUsedInCustomGroup.getCompactionSkipLockedIntervals(), duty.isSkipLockedIntervals());
}
Also used : LookupCoordinatorManager(org.apache.druid.server.lookup.cache.LookupCoordinatorManager) IntervalLoadRule(org.apache.druid.server.coordinator.rules.IntervalLoadRule) DruidServer(org.apache.druid.client.DruidServer) JacksonConfigManager(org.apache.druid.common.config.JacksonConfigManager) ForeverBroadcastDistributionRule(org.apache.druid.server.coordinator.rules.ForeverBroadcastDistributionRule) Event(org.apache.druid.java.util.emitter.core.Event) After(org.junit.After) Map(java.util.Map) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) ServerType(org.apache.druid.server.coordination.ServerType) ForeverLoadRule(org.apache.druid.server.coordinator.rules.ForeverLoadRule) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) ImmutableSet(com.google.common.collect.ImmutableSet) Execs(org.apache.druid.java.util.common.concurrent.Execs) ImmutableMap(com.google.common.collect.ImmutableMap) ConcurrentHashMap(java.util.concurrent.ConcurrentHashMap) CoordinatorCustomDutyGroup(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroup) Rule(org.apache.druid.server.coordinator.rules.Rule) CuratorUtils(org.apache.druid.curator.CuratorUtils) Executors(java.util.concurrent.Executors) CountDownLatch(java.util.concurrent.CountDownLatch) List(java.util.List) CuratorFramework(org.apache.curator.framework.CuratorFramework) KillSupervisorsCustomDuty(org.apache.druid.server.coordinator.duty.KillSupervisorsCustomDuty) ServiceEmitter(org.apache.druid.java.util.emitter.service.ServiceEmitter) PathChildrenCacheEvent(org.apache.curator.framework.recipes.cache.PathChildrenCacheEvent) DruidLeaderSelector(org.apache.druid.discovery.DruidLeaderSelector) DataSegment(org.apache.druid.timeline.DataSegment) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) SegmentId(org.apache.druid.timeline.SegmentId) ListeningExecutorService(com.google.common.util.concurrent.ListeningExecutorService) DruidDataSource(org.apache.druid.client.DruidDataSource) MetadataRuleManager(org.apache.druid.metadata.MetadataRuleManager) Intervals(org.apache.druid.java.util.common.Intervals) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) Duration(org.joda.time.Duration) ZkEnablementConfig(org.apache.druid.curator.ZkEnablementConfig) DataSourcesSnapshot(org.apache.druid.client.DataSourcesSnapshot) AtomicReference(java.util.concurrent.atomic.AtomicReference) ScheduledExecutorFactory(org.apache.druid.java.util.common.concurrent.ScheduledExecutorFactory) ConcurrentMap(java.util.concurrent.ConcurrentMap) HashSet(java.util.HashSet) Object2LongMap(it.unimi.dsi.fastutil.objects.Object2LongMap) ImmutableList(com.google.common.collect.ImmutableList) DruidServerMetadata(org.apache.druid.server.coordination.DruidServerMetadata) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) ScheduledExecutorService(java.util.concurrent.ScheduledExecutorService) ImmutableDruidDataSource(org.apache.druid.client.ImmutableDruidDataSource) ImmutableDruidServer(org.apache.druid.client.ImmutableDruidServer) Nullable(javax.annotation.Nullable) Before(org.junit.Before) Capture(org.easymock.Capture) SegmentsMetadataManager(org.apache.druid.metadata.SegmentsMetadataManager) ObjectMapper(com.fasterxml.jackson.databind.ObjectMapper) Test(org.junit.Test) EasyMock(org.easymock.EasyMock) DefaultObjectMapper(org.apache.druid.jackson.DefaultObjectMapper) CuratorTestBase(org.apache.druid.curator.CuratorTestBase) Object2IntMap(it.unimi.dsi.fastutil.objects.Object2IntMap) CoordinatorCustomDuty(org.apache.druid.server.coordinator.duty.CoordinatorCustomDuty) DruidNode(org.apache.druid.server.DruidNode) PathChildrenCache(org.apache.curator.framework.recipes.cache.PathChildrenCache) Assert(org.junit.Assert) Collections(java.util.Collections) BatchServerInventoryView(org.apache.druid.client.BatchServerInventoryView) Duration(org.joda.time.Duration) CompactSegments(org.apache.druid.server.coordinator.duty.CompactSegments) CoordinatorDuty(org.apache.druid.server.coordinator.duty.CoordinatorDuty) ZkPathsConfig(org.apache.druid.server.initialization.ZkPathsConfig) DruidNode(org.apache.druid.server.DruidNode) CoordinatorCustomDutyGroup(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroup) CoordinatorCustomDutyGroups(org.apache.druid.server.coordinator.duty.CoordinatorCustomDutyGroups) NoopServiceAnnouncer(org.apache.druid.curator.discovery.NoopServiceAnnouncer) HashSet(java.util.HashSet) Test(org.junit.Test)

Aggregations

ObjectMapper (com.fasterxml.jackson.databind.ObjectMapper)3 ImmutableList (com.google.common.collect.ImmutableList)3 ImmutableMap (com.google.common.collect.ImmutableMap)3 ImmutableSet (com.google.common.collect.ImmutableSet)3 ListeningExecutorService (com.google.common.util.concurrent.ListeningExecutorService)3 Object2IntMap (it.unimi.dsi.fastutil.objects.Object2IntMap)3 Object2LongMap (it.unimi.dsi.fastutil.objects.Object2LongMap)3 Collections (java.util.Collections)3 HashSet (java.util.HashSet)3 List (java.util.List)3 Map (java.util.Map)3 ConcurrentHashMap (java.util.concurrent.ConcurrentHashMap)3 ConcurrentMap (java.util.concurrent.ConcurrentMap)3 CountDownLatch (java.util.concurrent.CountDownLatch)3 Executors (java.util.concurrent.Executors)3 ScheduledExecutorService (java.util.concurrent.ScheduledExecutorService)3 AtomicReference (java.util.concurrent.atomic.AtomicReference)3 Nullable (javax.annotation.Nullable)3 CuratorFramework (org.apache.curator.framework.CuratorFramework)3 PathChildrenCache (org.apache.curator.framework.recipes.cache.PathChildrenCache)3