Examples with VotingConfiguration org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration used on opensource projects

Example 31 with VotingConfiguration

use of org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration in project crate by crate.

the class NodeJoinTests method testJoinAccumulation.

public void testJoinAccumulation() {
    DiscoveryNode node0 = newNode(0, true);
    DiscoveryNode node1 = newNode(1, true);
    DiscoveryNode node2 = newNode(2, true);
    long initialTerm = randomLongBetween(1, 10);
    long initialVersion = randomLongBetween(1, 10);
    setupFakeMasterServiceAndCoordinator(initialTerm, initialState(node0, initialTerm, initialVersion, new VotingConfiguration(Collections.singleton(node2.getId()))));
    assertFalse(isLocalNodeElectedMaster());
    long newTerm = initialTerm + randomLongBetween(1, 10);
    SimpleFuture futNode0 = joinNodeAsync(new JoinRequest(node0, Optional.of(new Join(node0, node0, newTerm, initialTerm, initialVersion))));
    deterministicTaskQueue.runAllRunnableTasks();
    assertFalse(futNode0.isDone());
    assertFalse(isLocalNodeElectedMaster());
    SimpleFuture futNode1 = joinNodeAsync(new JoinRequest(node1, Optional.of(new Join(node1, node0, newTerm, initialTerm, initialVersion))));
    deterministicTaskQueue.runAllRunnableTasks();
    assertFalse(futNode1.isDone());
    assertFalse(isLocalNodeElectedMaster());
    joinNodeAndRun(new JoinRequest(node2, Optional.of(new Join(node2, node0, newTerm, initialTerm, initialVersion))));
    assertTrue(isLocalNodeElectedMaster());
    assertTrue(clusterStateHasNode(node1));
    assertTrue(clusterStateHasNode(node2));
    FutureUtils.get(futNode0);
    FutureUtils.get(futNode1);
}

Example 32 with VotingConfiguration

use of org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration in project crate by crate.

the class NodeJoinTests method testBecomeFollowerFailsPendingJoin.

public void testBecomeFollowerFailsPendingJoin() throws Exception {
    DiscoveryNode node0 = newNode(0, true);
    DiscoveryNode node1 = newNode(1, true);
    long initialTerm = randomLongBetween(1, 10);
    long initialVersion = randomLongBetween(1, 10);
    setupFakeMasterServiceAndCoordinator(initialTerm, initialState(node0, initialTerm, initialVersion, new VotingConfiguration(Collections.singleton(node1.getId()))));
    long newTerm = initialTerm + randomLongBetween(1, 10);
    SimpleFuture fut = joinNodeAsync(new JoinRequest(node0, Optional.of(new Join(node0, node0, newTerm, initialTerm, initialVersion))));
    deterministicTaskQueue.runAllRunnableTasks();
    assertFalse(fut.isDone());
    assertFalse(isLocalNodeElectedMaster());
    handleFollowerCheckFrom(node1, newTerm);
    assertFalse(isLocalNodeElectedMaster());
    assertThat(expectThrows(CoordinationStateRejectedException.class, () -> FutureUtils.get(fut)).getMessage(), containsString("became follower"));
    assertFalse(isLocalNodeElectedMaster());
}

Example 33 with VotingConfiguration

use of org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration in project crate by crate.

the class CoordinationState method setInitialState.

/**
 * Used to bootstrap a cluster by injecting the initial state and configuration.
 *
 * @param initialState The initial state to use. Must have term 0, version equal to the last-accepted version, and non-empty
 *                     configurations.
 * @throws CoordinationStateRejectedException if the arguments were incompatible with the current state of this object.
 */
public void setInitialState(ClusterState initialState) {
    final VotingConfiguration lastAcceptedConfiguration = getLastAcceptedConfiguration();
    if (lastAcceptedConfiguration.isEmpty() == false) {
        LOGGER.debug("setInitialState: rejecting since last-accepted configuration is nonempty: {}", lastAcceptedConfiguration);
        throw new CoordinationStateRejectedException("initial state already set: last-accepted configuration now " + lastAcceptedConfiguration);
    }
    assert getLastAcceptedTerm() == 0 : getLastAcceptedTerm();
    assert getLastCommittedConfiguration().isEmpty() : getLastCommittedConfiguration();
    assert lastPublishedVersion == 0 : lastPublishedVersion;
    assert lastPublishedConfiguration.isEmpty() : lastPublishedConfiguration;
    assert electionWon == false;
    assert joinVotes.isEmpty() : joinVotes;
    assert publishVotes.isEmpty() : publishVotes;
    assert initialState.term() == 0 : initialState + " should have term 0";
    assert initialState.version() == getLastAcceptedVersion() : initialState + " should have version " + getLastAcceptedVersion();
    assert initialState.getLastAcceptedConfiguration().isEmpty() == false;
    assert initialState.getLastCommittedConfiguration().isEmpty() == false;
    persistedState.setLastAcceptedState(initialState);
}

Example 34 with VotingConfiguration

use of org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration in project crate by crate.

the class Coordinator method improveConfiguration.

// Package-private for testing
ClusterState improveConfiguration(ClusterState clusterState) {
    assert Thread.holdsLock(mutex) : "Coordinator mutex not held";
    // exclude any nodes whose ID is in the voting config exclusions list ...
    final Stream<String> excludedNodeIds = clusterState.getVotingConfigExclusions().stream().map(VotingConfigExclusion::getNodeId);
    // ... and also automatically exclude the node IDs of master-ineligible nodes that were previously master-eligible and are still in
    // the voting config. We could exclude all the master-ineligible nodes here, but there could be quite a few of them and that makes
    // the logging much harder to follow.
    final Stream<String> masterIneligibleNodeIdsInVotingConfig = StreamSupport.stream(clusterState.nodes().spliterator(), false).filter(n -> n.isMasterEligibleNode() == false && (clusterState.getLastAcceptedConfiguration().getNodeIds().contains(n.getId()) || clusterState.getLastCommittedConfiguration().getNodeIds().contains(n.getId()))).map(DiscoveryNode::getId);
    final Set<DiscoveryNode> liveNodes = StreamSupport.stream(clusterState.nodes().spliterator(), false).filter(DiscoveryNode::isMasterEligibleNode).filter(coordinationState.get()::containsJoinVoteFor).collect(Collectors.toSet());
    final VotingConfiguration newConfig = reconfigurator.reconfigure(liveNodes, Stream.concat(masterIneligibleNodeIdsInVotingConfig, excludedNodeIds).collect(Collectors.toSet()), getLocalNode(), clusterState.getLastAcceptedConfiguration());
    if (newConfig.equals(clusterState.getLastAcceptedConfiguration()) == false) {
        assert coordinationState.get().joinVotesHaveQuorumFor(newConfig);
        return ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).lastAcceptedConfiguration(newConfig).build())).build();
    }
    return clusterState;
}

Example 35 with VotingConfiguration

use of org.elasticsearch.cluster.coordination.CoordinationMetadata.VotingConfiguration in project crate by crate.

the class TransportAddVotingConfigExclusionsActionTests method setupForTest.

@Before
public void setupForTest() {
    final MockTransport transport = new MockTransport();
    transportService = transport.createTransportService(Settings.EMPTY, threadPool, boundTransportAddress -> localNode, null);
    new TransportAddVotingConfigExclusionsAction(transportService, clusterService, threadPool, // registers action
    new IndexNameExpressionResolver());
    transportService.start();
    transportService.acceptIncomingRequests();
    final VotingConfiguration allNodesConfig = VotingConfiguration.of(localNode, otherNode1, otherNode2);
    setState(clusterService, builder(new ClusterName("cluster")).nodes(new Builder().add(localNode).add(otherNode1).add(otherNode2).add(otherDataNode).localNodeId(localNode.getId()).masterNodeId(localNode.getId())).metadata(Metadata.builder().coordinationMetadata(CoordinationMetadata.builder().lastAcceptedConfiguration(allNodesConfig).lastCommittedConfiguration(allNodesConfig).build())));
    clusterStateObserver = new ClusterStateObserver(clusterService, null, logger);
}