Examples with PartitionTableView com.hazelcast.internal.partition.PartitionTableView used on opensource projects

Example 6 with PartitionTableView

use of com.hazelcast.internal.partition.PartitionTableView in project hazelcast by hazelcast.

the class MigrationManagerTest method testCheckSnapshots_picksBest_whenMultipleSnapshotsMatch.

@Test
public void testCheckSnapshots_picksBest_whenMultipleSnapshotsMatch() throws UnknownHostException {
    List<Member> membersWhenRepartitioning = members(3);
    // cluster had 3 members; one crashed ->
    // snapshot partition table references 3 members
    PartitionTableView snapshotBestMatch = new PartitionTableView(partitions(membersWhenRepartitioning));
    // another crashed ->
    // snapshots contains another partition table with a single member
    List<Member> singleMemberCluster = cloneRemoving(membersWhenRepartitioning, 2);
    PartitionTableView snapshotSingleMember = new PartitionTableView(partitions(singleMemberCluster));
    // one member already rejoined -> current partition table references 2 members
    // crashed member is rejoining, cluster service reports 3 data members
    // -> snapshot partition table with 3 members is picked as better match
    List<Member> currentClusterMembers = cloneRemoving(membersWhenRepartitioning, 1);
    PartitionTableView currentPartitionTable = new PartitionTableView(partitions(currentClusterMembers));
    Collection<PartitionTableView> snapshots = new ArrayList<>();
    snapshots.add(snapshotSingleMember);
    snapshots.add(snapshotBestMatch);
    when(clusterService.getMembers(any())).thenReturn(membersWhenRepartitioning);
    when(partitionStateManager.getPartitionTable()).thenReturn(currentPartitionTable);
    when(partitionStateManager.snapshots()).thenReturn(snapshots);
    assertArrayEquals(snapshotBestMatch.toArray(new HashMap<>()), task.checkSnapshots());
}

Example 7 with PartitionTableView

use of com.hazelcast.internal.partition.PartitionTableView in project hazelcast by hazelcast.

the class InternalPartitionServiceImplTest method test_setInitialState_listenerShouldNOTBeCalled.

@Test
public void test_setInitialState_listenerShouldNOTBeCalled() {
    Address[][] addresses = new Address[partitionCount][MAX_REPLICA_COUNT];
    for (int i = 0; i < partitionCount; i++) {
        addresses[i][0] = thisAddress;
    }
    TestPartitionListener listener = new TestPartitionListener();
    partitionService.addPartitionListener(listener);
    partitionService.setInitialState(new PartitionTableView(addresses, 0));
    assertEquals(0, listener.eventCount);
}

Example 8 with PartitionTableView

use of com.hazelcast.internal.partition.PartitionTableView in project hazelcast by hazelcast.

the class MigrationManagerTest method testCheckSnapshots_whenSingleMatchingSnapshotExists.

@Test
public void testCheckSnapshots_whenSingleMatchingSnapshotExists() throws UnknownHostException {
    // cluster had 3 members; one crashed ->
    // snapshot partition table references 3 members
    // current partition table references 2 remaining members
    // crashed member is rejoining, cluster service reports 3 data members
    List<Member> newClusterMembers = members(3);
    List<Member> currentClusterMembers = new ArrayList<>(newClusterMembers);
    currentClusterMembers.remove(2);
    PartitionTableView currentPartitionTable = new PartitionTableView(partitions(currentClusterMembers));
    PartitionTableView snapshot = new PartitionTableView(partitions(newClusterMembers));
    when(clusterService.getMembers(any())).thenReturn(newClusterMembers);
    when(partitionStateManager.getPartitionTable()).thenReturn(currentPartitionTable);
    when(partitionStateManager.snapshots()).thenReturn(Collections.singletonList(snapshot));
    assertArrayEquals(snapshot.toArray(new HashMap<>()), task.checkSnapshots());
}

Example 9 with PartitionTableView

use of com.hazelcast.internal.partition.PartitionTableView in project hazelcast by hazelcast.

the class MigrationManagerTest method testCheckSnapshots_picksMatching_whenOtherSnapshotsExist.

@Test
public void testCheckSnapshots_picksMatching_whenOtherSnapshotsExist() throws UnknownHostException {
    // cluster had 3 members; one crashed ->
    // snapshot partition table references 3 members
    // current partition table references 2 remaining members
    // crashed member is rejoining, cluster service reports 3 data members
    List<Member> newClusterMembers = members(3);
    List<Member> currentClusterMembers = new ArrayList<>(newClusterMembers);
    currentClusterMembers.remove(2);
    PartitionTableView currentPartitionTable = new PartitionTableView(partitions(currentClusterMembers));
    PartitionTableView matchingSnapshot = new PartitionTableView(partitions(newClusterMembers));
    // add an unrelated snapshot
    PartitionTableView unrelated = new PartitionTableView(partitions(members(3)));
    Collection<PartitionTableView> snapshots = new ArrayList<>();
    snapshots.add(matchingSnapshot);
    snapshots.add(unrelated);
    when(clusterService.getMembers(any())).thenReturn(newClusterMembers);
    when(partitionStateManager.getPartitionTable()).thenReturn(currentPartitionTable);
    when(partitionStateManager.snapshots()).thenReturn(snapshots);
    assertArrayEquals(matchingSnapshot.toArray(new HashMap<>()), task.checkSnapshots());
}

Example 10 with PartitionTableView

use of com.hazelcast.internal.partition.PartitionTableView in project hazelcast by hazelcast.

the class MigrationManagerTest method testCheckSnapshots_picksMatchingSnapshot_whenAddressChanged.

@Test
public void testCheckSnapshots_picksMatchingSnapshot_whenAddressChanged() throws UnknownHostException {
    // setup same as testCheckSnapshots_picksBest_whenMultipleSnapshotsMatch
    List<Member> membersWhenRepartitioning = members(3);
    PartitionTableView snapshotBestMatch = new PartitionTableView(partitions(membersWhenRepartitioning));
    List<Member> singleMemberCluster = cloneRemoving(membersWhenRepartitioning, 2);
    PartitionTableView snapshotSingleMember = new PartitionTableView(partitions(singleMemberCluster));
    List<Member> currentClusterMembers = cloneRemoving(membersWhenRepartitioning, 1);
    PartitionTableView currentPartitionTable = new PartitionTableView(partitions(currentClusterMembers));
    // but member 3 changed address as it is rejoining
    Member crashedMember = membersWhenRepartitioning.remove(2);
    Member rejoiningWithChangedAddress = new MemberImpl(new Address("127.0.0.1", crashedMember.getAddress().getPort() + 10), crashedMember.getVersion(), crashedMember.localMember(), crashedMember.getUuid());
    membersWhenRepartitioning.add(rejoiningWithChangedAddress);
    Collection<PartitionTableView> snapshots = new ArrayList<>();
    snapshots.add(snapshotSingleMember);
    snapshots.add(snapshotBestMatch);
    when(clusterService.getMembers(any())).thenReturn(membersWhenRepartitioning);
    when(partitionStateManager.getPartitionTable()).thenReturn(currentPartitionTable);
    when(partitionStateManager.snapshots()).thenReturn(snapshots);
    // apply address change in snapshotBestMatch for assertion
    Map<UUID, Address> addressTranslationMap = new HashMap<>();
    addressTranslationMap.put(rejoiningWithChangedAddress.getUuid(), rejoiningWithChangedAddress.getAddress());
    assertArrayEquals(snapshotBestMatch.toArray(addressTranslationMap), task.checkSnapshots());
}