Examples with DiscoveryNodeRole org.elasticsearch.cluster.node.DiscoveryNodeRole used on opensource projects

Example 6 with DiscoveryNodeRole

use of org.elasticsearch.cluster.node.DiscoveryNodeRole in project crate by crate.

the class InternalTestClusterTests method testDifferentRolesMaintainPathOnRestart.

public void testDifferentRolesMaintainPathOnRestart() throws Exception {
    final Path baseDir = createTempDir();
    final int numNodes = 5;
    String transportClient = getTestTransportType();
    InternalTestCluster cluster = new InternalTestCluster(randomLong(), baseDir, false, false, 0, 0, "test", new NodeConfigurationSource() {

        @Override
        public Settings nodeSettings(int nodeOrdinal) {
            return Settings.builder().put(NetworkModule.TRANSPORT_TYPE_KEY, getTestTransportType()).put(Node.INITIAL_STATE_TIMEOUT_SETTING.getKey(), 0).putList(DISCOVERY_SEED_PROVIDERS_SETTING.getKey(), "file").putList(SettingsBasedSeedHostsProvider.DISCOVERY_SEED_HOSTS_SETTING.getKey()).build();
        }

        @Override
        public Path nodeConfigPath(int nodeOrdinal) {
            return null;
        }

        @Override
        public Settings transportClientSettings() {
            return Settings.builder().put(NetworkModule.TRANSPORT_TYPE_KEY, transportClient).build();
        }
    }, 0, "", mockPlugins());
    cluster.beforeTest(random());
    List<DiscoveryNodeRole> roles = new ArrayList<>();
    for (int i = 0; i < numNodes; i++) {
        final DiscoveryNodeRole role = i == numNodes - 1 && roles.contains(DiscoveryNodeRole.MASTER_ROLE) == false ? // last node and still no master
        DiscoveryNodeRole.MASTER_ROLE : randomFrom(DiscoveryNodeRole.MASTER_ROLE, DiscoveryNodeRole.DATA_ROLE);
        roles.add(role);
    }
    cluster.setBootstrapMasterNodeIndex(randomIntBetween(0, (int) roles.stream().filter(role -> role.equals(DiscoveryNodeRole.MASTER_ROLE)).count() - 1));
    try {
        Map<DiscoveryNodeRole, Set<String>> pathsPerRole = new HashMap<>();
        for (int i = 0; i < numNodes; i++) {
            final DiscoveryNodeRole role = roles.get(i);
            final String node;
            if (role == DiscoveryNodeRole.MASTER_ROLE) {
                node = cluster.startMasterOnlyNode();
            } else if (role == DiscoveryNodeRole.DATA_ROLE) {
                node = cluster.startDataOnlyNode();
            } else {
                throw new IllegalStateException("get your story straight");
            }
            Set<String> rolePaths = pathsPerRole.computeIfAbsent(role, k -> new HashSet<>());
            for (Path path : getNodePaths(cluster, node)) {
                assertTrue(rolePaths.add(path.toString()));
            }
        }
        cluster.validateClusterFormed();
        cluster.fullRestart();
        Map<DiscoveryNodeRole, Set<String>> result = new HashMap<>();
        for (String name : cluster.getNodeNames()) {
            DiscoveryNode node = cluster.getInstance(ClusterService.class, name).localNode();
            List<String> paths = Arrays.stream(getNodePaths(cluster, name)).map(Path::toString).collect(Collectors.toList());
            if (node.isMasterEligibleNode()) {
                result.computeIfAbsent(DiscoveryNodeRole.MASTER_ROLE, k -> new HashSet<>()).addAll(paths);
            } else {
                result.computeIfAbsent(DiscoveryNodeRole.DATA_ROLE, k -> new HashSet<>()).addAll(paths);
            }
        }
        assertThat(result.size(), equalTo(pathsPerRole.size()));
        for (DiscoveryNodeRole role : result.keySet()) {
            assertThat("path are not the same for " + role, result.get(role), equalTo(pathsPerRole.get(role)));
        }
    } finally {
        cluster.close();
    }
}