Examples with VotingConfigExclusion org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion used on opensource projects

Example 1 with VotingConfigExclusion

use of org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion in project OpenSearch by opensearch-project.

the class TransportClearVotingConfigExclusionsAction method masterOperation.

@Override
protected void masterOperation(ClearVotingConfigExclusionsRequest request, ClusterState initialState, ActionListener<ClearVotingConfigExclusionsResponse> listener) throws Exception {
    final long startTimeMillis = threadPool.relativeTimeInMillis();
    final Predicate<ClusterState> allExclusionsRemoved = newState -> {
        for (VotingConfigExclusion tombstone : initialState.getVotingConfigExclusions()) {
            // NB checking for the existence of any node with this persistent ID, because persistent IDs are how votes are counted.
            if (newState.nodes().nodeExists(tombstone.getNodeId())) {
                return false;
            }
        }
        return true;
    };
    if (request.getWaitForRemoval() && allExclusionsRemoved.test(initialState) == false) {
        final ClusterStateObserver clusterStateObserver = new ClusterStateObserver(initialState, clusterService, request.getTimeout(), logger, threadPool.getThreadContext());
        clusterStateObserver.waitForNextChange(new Listener() {

            @Override
            public void onNewClusterState(ClusterState state) {
                submitClearVotingConfigExclusionsTask(request, startTimeMillis, listener);
            }

            @Override
            public void onClusterServiceClose() {
                listener.onFailure(new OpenSearchException("cluster service closed while waiting for removal of nodes " + initialState.getVotingConfigExclusions()));
            }

            @Override
            public void onTimeout(TimeValue timeout) {
                listener.onFailure(new OpenSearchTimeoutException("timed out waiting for removal of nodes; if nodes should not be removed, set waitForRemoval to false. " + initialState.getVotingConfigExclusions()));
            }
        }, allExclusionsRemoved);
    } else {
        submitClearVotingConfigExclusionsTask(request, startTimeMillis, listener);
    }
}

Example 2 with VotingConfigExclusion

use of org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion in project OpenSearch by opensearch-project.

the class Coordinator method validVotingConfigExclusionState.

/*
    * Valid Voting Configuration Exclusion state criteria:
    * 1. Every voting config exclusion with an ID of _absent_ should not match any nodes currently in the cluster by name
    * 2. Every voting config exclusion with a name of _absent_ should not match any nodes currently in the cluster by ID
     */
static boolean validVotingConfigExclusionState(ClusterState clusterState) {
    Set<VotingConfigExclusion> votingConfigExclusions = clusterState.getVotingConfigExclusions();
    Set<String> nodeNamesWithAbsentId = votingConfigExclusions.stream().filter(e -> e.getNodeId().equals(VotingConfigExclusion.MISSING_VALUE_MARKER)).map(VotingConfigExclusion::getNodeName).collect(Collectors.toSet());
    Set<String> nodeIdsWithAbsentName = votingConfigExclusions.stream().filter(e -> e.getNodeName().equals(VotingConfigExclusion.MISSING_VALUE_MARKER)).map(VotingConfigExclusion::getNodeId).collect(Collectors.toSet());
    for (DiscoveryNode node : clusterState.getNodes()) {
        if (node.isMasterNode() && (nodeIdsWithAbsentName.contains(node.getId()) || nodeNamesWithAbsentId.contains(node.getName()))) {
            return false;
        }
    }
    return true;
}

Example 3 with VotingConfigExclusion

use of org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion in project OpenSearch by opensearch-project.

the class ClusterStateDiffIT method randomCoordinationMetadata.

private ClusterState.Builder randomCoordinationMetadata(ClusterState clusterState) {
    ClusterState.Builder builder = ClusterState.builder(clusterState);
    CoordinationMetadata.Builder metaBuilder = CoordinationMetadata.builder(clusterState.coordinationMetadata());
    metaBuilder.term(randomNonNegativeLong());
    if (randomBoolean()) {
        metaBuilder.lastCommittedConfiguration(new CoordinationMetadata.VotingConfiguration(Sets.newHashSet(generateRandomStringArray(10, 10, false))));
    }
    if (randomBoolean()) {
        metaBuilder.lastAcceptedConfiguration(new CoordinationMetadata.VotingConfiguration(Sets.newHashSet(generateRandomStringArray(10, 10, false))));
    }
    if (randomBoolean()) {
        metaBuilder.addVotingConfigExclusion(new VotingConfigExclusion(randomNode("node-" + randomAlphaOfLength(10))));
    }
    return builder;
}

Example 4 with VotingConfigExclusion

use of org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion in project OpenSearch by opensearch-project.

the class CoordinationMetadataTests method testVotingTombstoneXContent.

public void testVotingTombstoneXContent() throws IOException {
    VotingConfigExclusion originalTombstone = new VotingConfigExclusion(randomAlphaOfLength(10), randomAlphaOfLength(10));
    final XContentBuilder builder = JsonXContent.contentBuilder();
    originalTombstone.toXContent(builder, ToXContent.EMPTY_PARAMS);
    try (XContentParser parser = createParser(JsonXContent.jsonXContent, BytesReference.bytes(builder))) {
        final VotingConfigExclusion fromXContentTombstone = VotingConfigExclusion.fromXContent(parser);
        assertThat(originalTombstone, equalTo(fromXContentTombstone));
    }
}

Example 5 with VotingConfigExclusion

use of org.opensearch.cluster.coordination.CoordinationMetadata.VotingConfigExclusion in project OpenSearch by opensearch-project.

the class CoordinationMetadataTests method testVotingTombstoneSerializationEqualsHashCode.

public void testVotingTombstoneSerializationEqualsHashCode() {
    VotingConfigExclusion tombstone = new VotingConfigExclusion(randomAlphaOfLength(10), randomAlphaOfLength(10));
    // Note: the explicit cast of the CopyFunction is needed for some IDE (specifically Eclipse 4.8.0) to infer the right type
    EqualsHashCodeTestUtils.checkEqualsAndHashCode(tombstone, (CopyFunction<VotingConfigExclusion>) orig -> OpenSearchTestCase.copyWriteable(orig, new NamedWriteableRegistry(Collections.emptyList()), VotingConfigExclusion::new), orig -> randomlyChangeVotingTombstone(orig));
}