Examples with ClusterHealthResponse org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse used on opensource projects

Example 86 with ClusterHealthResponse

use of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse in project crate by crate.

the class SQLTransportExecutor method ensureState.

private ClusterHealthStatus ensureState(ClusterHealthStatus state) {
    Client client = clientProvider.client();
    ClusterHealthResponse actionGet = client.admin().cluster().health(Requests.clusterHealthRequest().waitForStatus(state).waitForEvents(Priority.LANGUID).waitForRelocatingShards(0)).actionGet();
    if (actionGet.isTimedOut()) {
        LOGGER.info("ensure state timed out, cluster state:\n{}\n{}", client.admin().cluster().prepareState().get().getState().prettyPrint(), client.admin().cluster().preparePendingClusterTasks().get().prettyPrint());
        assertThat("timed out waiting for state", actionGet.isTimedOut(), equalTo(false));
    }
    if (state == ClusterHealthStatus.YELLOW) {
        assertThat(actionGet.getStatus(), Matchers.anyOf(equalTo(state), equalTo(ClusterHealthStatus.GREEN)));
    } else {
        assertThat(actionGet.getStatus(), equalTo(state));
    }
    return actionGet.getStatus();
}

Example 87 with ClusterHealthResponse

use of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse in project graylog2-server by Graylog2.

the class IndexerSetupService method startUp.

@Override
protected void startUp() throws Exception {
    Tools.silenceUncaughtExceptionsInThisThread();
    LOG.debug("Starting indexer");
    node.start();
    final Client client = node.client();
    try {
        /* try to determine the cluster health. if this times out we could not connect and try to determine if there's
                   anything listening at all. if that happens this usually has these reasons:
                    1. cluster.name is different
                    2. network.publish_host is not reachable
                    3. wrong address configured
                    4. multicast in use but broken in this environment
                   we handle a red cluster state differently because if we can get that result it means the cluster itself
                   is reachable, which is a completely different problem from not being able to join at all.
                 */
        final ClusterHealthRequest atLeastRed = client.admin().cluster().prepareHealth().setWaitForStatus(ClusterHealthStatus.RED).request();
        final ClusterHealthResponse health = client.admin().cluster().health(atLeastRed).actionGet(configuration.getClusterDiscoveryTimeout(), MILLISECONDS);
        // we don't get here if we couldn't join the cluster. just check for red cluster state
        if (ClusterHealthStatus.RED.equals(health.getStatus())) {
            final Notification notification = notificationService.buildNow().addSeverity(Notification.Severity.URGENT).addType(Notification.Type.ES_CLUSTER_RED);
            notificationService.publishIfFirst(notification);
            LOG.warn("The Elasticsearch cluster state is RED which means shards are unassigned.");
            LOG.info("This usually indicates a crashed and corrupt cluster and needs to be investigated. Graylog will write into the local disk journal.");
            LOG.info("See {} for details.", DocsHelper.PAGE_ES_CONFIGURATION);
        }
        if (ClusterHealthStatus.GREEN.equals(health.getStatus())) {
            notificationService.fixed(Notification.Type.ES_CLUSTER_RED);
        }
        notificationService.fixed(Notification.Type.ES_UNAVAILABLE);
    } catch (ElasticsearchTimeoutException e) {
        final String hosts = node.settings().get("discovery.zen.ping.unicast.hosts");
        if (!isNullOrEmpty(hosts)) {
            final Iterable<String> hostList = Splitter.on(',').omitEmptyStrings().trimResults().split(hosts);
            for (String host : hostList) {
                final URI esUri = URI.create("http://" + HostAndPort.fromString(host).getHostText() + ":9200/");
                LOG.info("Checking Elasticsearch HTTP API at {}", esUri);
                // Try the HTTP API endpoint
                final Request request = new Request.Builder().get().url(esUri.resolve("/_nodes").toString()).build();
                try (final Response response = httpClient.newCall(request).execute()) {
                    if (response.isSuccessful()) {
                        final JsonNode resultTree = objectMapper.readTree(response.body().byteStream());
                        final JsonNode nodesList = resultTree.get("nodes");
                        if (!configuration.isDisableVersionCheck()) {
                            final Iterator<String> nodes = nodesList.fieldNames();
                            while (nodes.hasNext()) {
                                final String id = nodes.next();
                                final Version clusterVersion = Version.fromString(nodesList.get(id).get("version").textValue());
                                checkClusterVersion(clusterVersion);
                            }
                        }
                        final String clusterName = resultTree.get("cluster_name").textValue();
                        checkClusterName(clusterName);
                    } else {
                        LOG.error("Could not connect to Elasticsearch at " + esUri + ". Is it running?");
                    }
                } catch (IOException ioException) {
                    LOG.error("Could not connect to Elasticsearch: {}", ioException.getMessage());
                }
            }
        }
        final Notification notification = notificationService.buildNow().addSeverity(Notification.Severity.URGENT).addType(Notification.Type.ES_UNAVAILABLE);
        notificationService.publishIfFirst(notification);
        LOG.warn("Could not connect to Elasticsearch");
        LOG.info("If you're using multicast, check that it is working in your network and that Elasticsearch is accessible. Also check that the cluster name setting is correct.");
        LOG.info("See {} for details.", DocsHelper.PAGE_ES_CONFIGURATION);
    }
}

Example 88 with ClusterHealthResponse

use of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse in project graylog2-server by Graylog2.

the class Indices method waitForStatus.

public ClusterHealthStatus waitForStatus(String index, ClusterHealthStatus clusterHealthStatus) {
    final ClusterHealthRequest request = c.admin().cluster().prepareHealth(index).setWaitForStatus(clusterHealthStatus).request();
    LOG.debug("Waiting until index health status of index {} is {}", index, clusterHealthStatus);
    final ClusterHealthResponse response = c.admin().cluster().health(request).actionGet(5L, TimeUnit.MINUTES);
    return response.getStatus();
}

Example 89 with ClusterHealthResponse

use of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse in project graylog2-server by Graylog2.

the class IndexerClusterResource method clusterHealth.

@GET
@Timed
@Path("/health")
@ApiOperation(value = "Get cluster and shard health overview")
@RequiresPermissions(RestPermissions.INDEXERCLUSTER_READ)
@Produces(MediaType.APPLICATION_JSON)
public ClusterHealth clusterHealth() {
    final ClusterHealthResponse health = cluster.health();
    final ClusterHealth.ShardStatus shards = ClusterHealth.ShardStatus.create(health.getActiveShards(), health.getInitializingShards(), health.getRelocatingShards(), health.getUnassignedShards());
    return ClusterHealth.create(health.getStatus().toString().toLowerCase(Locale.ENGLISH), shards);
}

Example 90 with ClusterHealthResponse

use of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse in project sonarqube by SonarSource.

the class ProxyClusterHealthRequestBuilderTest method state.

@Test
public void state() {
    ClusterHealthRequestBuilder requestBuilder = esTester.client().prepareHealth();
    ClusterHealthResponse state = requestBuilder.get();
    assertThat(state.getStatus()).isEqualTo(ClusterHealthStatus.GREEN);
}