Examples with TASK_0_2 org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 used on opensource projects

Example 1 with TASK_0_2

use of org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 in project kafka by apache.

the class HighAvailabilityTaskAssignorTest method shouldAssignActiveStatefulTasksEvenlyOverClientsWhereNumberOfClientsNotIntegralDivisorOfNumberOfTasks.

@Test
public void shouldAssignActiveStatefulTasksEvenlyOverClientsWhereNumberOfClientsNotIntegralDivisorOfNumberOfTasks() {
    final Set<TaskId> allTaskIds = mkSet(TASK_0_0, TASK_0_1, TASK_0_2, TASK_1_0, TASK_1_1, TASK_1_2, TASK_2_0, TASK_2_1, TASK_2_2);
    final Map<TaskId, Long> lags = allTaskIds.stream().collect(Collectors.toMap(k -> k, k -> 10L));
    final ClientState clientState1 = new ClientState(emptySet(), emptySet(), lags, 1);
    final ClientState clientState2 = new ClientState(emptySet(), emptySet(), lags, 1);
    final Map<UUID, ClientState> clientStates = getClientStatesMap(clientState1, clientState2);
    final boolean unstable = new HighAvailabilityTaskAssignor().assign(clientStates, allTaskIds, allTaskIds, new AssignmentConfigs(0L, 1, 0, 60_000L));
    assertThat(unstable, is(false));
    assertValidAssignment(0, allTaskIds, emptySet(), clientStates, new StringBuilder());
    assertBalancedActiveAssignment(clientStates, new StringBuilder());
    assertBalancedStatefulAssignment(allTaskIds, clientStates, new StringBuilder());
    assertBalancedTasks(clientStates);
}

Example 2 with TASK_0_2

use of org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 in project kafka by apache.

the class HighAvailabilityTaskAssignorTest method shouldAssignActiveStatefulTasksEvenlyOverClientsWhereNumberOfClientsIntegralDivisorOfNumberOfTasks.

@Test
public void shouldAssignActiveStatefulTasksEvenlyOverClientsWhereNumberOfClientsIntegralDivisorOfNumberOfTasks() {
    final Set<TaskId> allTaskIds = mkSet(TASK_0_0, TASK_0_1, TASK_0_2, TASK_1_0, TASK_1_1, TASK_1_2, TASK_2_0, TASK_2_1, TASK_2_2);
    final Map<TaskId, Long> lags = allTaskIds.stream().collect(Collectors.toMap(k -> k, k -> 10L));
    final ClientState clientState1 = new ClientState(emptySet(), emptySet(), lags, 1);
    final ClientState clientState2 = new ClientState(emptySet(), emptySet(), lags, 1);
    final ClientState clientState3 = new ClientState(emptySet(), emptySet(), lags, 1);
    final Map<UUID, ClientState> clientStates = getClientStatesMap(clientState1, clientState2, clientState3);
    final boolean unstable = new HighAvailabilityTaskAssignor().assign(clientStates, allTaskIds, allTaskIds, new AssignmentConfigs(0L, 1, 0, 60_000L));
    assertThat(unstable, is(false));
    assertValidAssignment(0, allTaskIds, emptySet(), clientStates, new StringBuilder());
    assertBalancedActiveAssignment(clientStates, new StringBuilder());
    assertBalancedStatefulAssignment(allTaskIds, clientStates, new StringBuilder());
    assertBalancedTasks(clientStates);
}

Example 3 with TASK_0_2

use of org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 in project kafka by apache.

the class HighAvailabilityTaskAssignorTest method shouldAssignActiveStatefulTasksEvenlyOverStreamThreadsButBestEffortOverClients.

@Test
public void shouldAssignActiveStatefulTasksEvenlyOverStreamThreadsButBestEffortOverClients() {
    final Set<TaskId> allTaskIds = mkSet(TASK_0_0, TASK_0_1, TASK_0_2, TASK_1_0, TASK_1_1, TASK_1_2, TASK_2_0, TASK_2_1, TASK_2_2);
    final Map<TaskId, Long> lags = allTaskIds.stream().collect(Collectors.toMap(k -> k, k -> 10L));
    final ClientState clientState1 = new ClientState(emptySet(), emptySet(), lags, 6);
    final ClientState clientState2 = new ClientState(emptySet(), emptySet(), lags, 3);
    final Map<UUID, ClientState> clientStates = getClientStatesMap(clientState1, clientState2);
    final boolean unstable = new HighAvailabilityTaskAssignor().assign(clientStates, allTaskIds, allTaskIds, new AssignmentConfigs(0L, 1, 0, 60_000L));
    assertThat(unstable, is(false));
    assertValidAssignment(0, allTaskIds, emptySet(), clientStates, new StringBuilder());
    assertBalancedActiveAssignment(clientStates, new StringBuilder());
    assertBalancedStatefulAssignment(allTaskIds, clientStates, new StringBuilder());
    assertThat(clientState1, hasActiveTasks(6));
    assertThat(clientState2, hasActiveTasks(3));
}

Example 4 with TASK_0_2

use of org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 in project kafka by apache.

the class HighAvailabilityTaskAssignorTest method shouldAssignActiveStatefulTasksEvenlyOverClientsAndStreamThreadsWithEqualStreamThreadsPerClientAsTasks.

@Test
public void shouldAssignActiveStatefulTasksEvenlyOverClientsAndStreamThreadsWithEqualStreamThreadsPerClientAsTasks() {
    final Set<TaskId> allTaskIds = mkSet(TASK_0_0, TASK_0_1, TASK_0_2, TASK_1_0, TASK_1_1, TASK_1_2, TASK_2_0, TASK_2_1, TASK_2_2);
    final Map<TaskId, Long> lags = allTaskIds.stream().collect(Collectors.toMap(k -> k, k -> 10L));
    final ClientState clientState1 = new ClientState(emptySet(), emptySet(), lags, 9);
    final ClientState clientState2 = new ClientState(emptySet(), emptySet(), lags, 9);
    final ClientState clientState3 = new ClientState(emptySet(), emptySet(), lags, 9);
    final Map<UUID, ClientState> clientStates = getClientStatesMap(clientState1, clientState2, clientState3);
    final boolean unstable = new HighAvailabilityTaskAssignor().assign(clientStates, allTaskIds, allTaskIds, new AssignmentConfigs(0L, 1, 0, 60_000L));
    assertThat(unstable, is(false));
    assertValidAssignment(0, allTaskIds, emptySet(), clientStates, new StringBuilder());
    assertBalancedActiveAssignment(clientStates, new StringBuilder());
    assertBalancedStatefulAssignment(allTaskIds, clientStates, new StringBuilder());
    assertBalancedTasks(clientStates);
}

Example 5 with TASK_0_2

use of org.apache.kafka.streams.processor.internals.assignment.AssignmentTestUtils.TASK_0_2 in project kafka by apache.

the class HighAvailabilityTaskAssignorTest method shouldAssignActiveStatefulTasksEvenlyOverUnevenlyDistributedStreamThreads.

@Test
public void shouldAssignActiveStatefulTasksEvenlyOverUnevenlyDistributedStreamThreads() {
    final Set<TaskId> allTaskIds = mkSet(TASK_0_0, TASK_0_1, TASK_0_2, TASK_1_0, TASK_1_1, TASK_1_2);
    final Map<TaskId, Long> lags = allTaskIds.stream().collect(Collectors.toMap(k -> k, k -> 10L));
    final ClientState clientState1 = new ClientState(emptySet(), emptySet(), lags, 1);
    final ClientState clientState2 = new ClientState(emptySet(), emptySet(), lags, 2);
    final ClientState clientState3 = new ClientState(emptySet(), emptySet(), lags, 3);
    final Map<UUID, ClientState> clientStates = getClientStatesMap(clientState1, clientState2, clientState3);
    final boolean unstable = new HighAvailabilityTaskAssignor().assign(clientStates, allTaskIds, allTaskIds, new AssignmentConfigs(0L, 1, 0, 60_000L));
    assertThat(unstable, is(false));
    assertValidAssignment(0, allTaskIds, emptySet(), clientStates, new StringBuilder());
    assertBalancedActiveAssignment(clientStates, new StringBuilder());
    assertBalancedStatefulAssignment(allTaskIds, clientStates, new StringBuilder());
    assertThat(clientState1, hasActiveTasks(1));
    assertThat(clientState2, hasActiveTasks(2));
    assertThat(clientState3, hasActiveTasks(3));
    final AssignmentTestUtils.TaskSkewReport taskSkewReport = analyzeTaskAssignmentBalance(clientStates);
    if (taskSkewReport.totalSkewedTasks() == 0) {
        fail("Expected a skewed task assignment, but was: " + taskSkewReport);
    }
}