Package org.elasticsearch.action.admin.cluster.health

Examples of org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse

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        logger.info("Creating aliases alias release");
        client1.admin().indices().aliases(indexAliasesRequest().addAlias("test", "release", termFilter("text", "release"))).actionGet();
        client1.admin().indices().aliases(indexAliasesRequest().addAlias("test", "beta", termFilter("text", "beta"))).actionGet();

        logger.info("Running Cluster Health");
        ClusterHealthResponse clusterHealth = client1.admin().cluster().health(clusterHealthRequest().waitForGreenStatus()).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.GREEN));

        logger.info("Indexing...");
        client1.index(indexRequest("test").type("type1").id("1").source(jsonBuilder().startObject().field("text", "lucene beta").endObject())).actionGet();
        client1.index(indexRequest("test").type("type1").id("2").source(jsonBuilder().startObject().field("text", "lucene release").endObject())).actionGet();
        client1.index(indexRequest("test").type("type1").id("3").source(jsonBuilder().startObject().field("text", "elasticsearch beta").endObject())).actionGet();
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        assertThat(createIndexResponse.acknowledged(), equalTo(true));
        node.close();
        node = buildNode().start();

        logger.info("--> waiting for green status");
        ClusterHealthResponse health = node.client().admin().cluster().prepareHealth().setWaitForYellowStatus().execute().actionGet();
        assertThat(health.timedOut(), equalTo(false));

        try {
            node.client().admin().indices().create(createIndexRequest("test")).actionGet();
            assert false : "index should exists";
        } catch (IndexAlreadyExistsException e) {
            // all is well
        }

        logger.info("Running Cluster Health (wait for the shards to startup)");
        ClusterHealthResponse clusterHealth = node.client().admin().cluster().health(clusterHealthRequest().waitForYellowStatus().waitForActiveShards(1)).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.YELLOW));

        // Translog tests
        // create a mapping
        PutMappingResponse putMappingResponse = node.client().admin().indices().putMapping(putMappingRequest("test").type("type1")
                .source(mappingSource())).actionGet();
        assertThat(putMappingResponse.acknowledged(), equalTo(true));

        // verify that mapping is there
        ClusterStateResponse clusterState = node.client().admin().cluster().state(clusterStateRequest()).actionGet();
        assertThat(clusterState.state().metaData().index("test").mapping("type1"), notNullValue());

        // create two and delete the first
        logger.info("Indexing #1");
        node.client().index(Requests.indexRequest("test").type("type1").id("1").source(source("1", "test"))).actionGet();
        logger.info("Indexing #2");
        node.client().index(Requests.indexRequest("test").type("type1").id("2").source(source("2", "test"))).actionGet();
        logger.info("Deleting #1");
        node.client().delete(deleteRequest("test").type("type1").id("1")).actionGet();

        // perform snapshot to the index
        logger.info("Gateway Snapshot");
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();
        logger.info("Gateway Snapshot (should be a no op)");
        // do it again, it should be a no op
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();

        logger.info("Closing the server");
        node.close();
        logger.info("Starting the server, should recover from the gateway (only translog should be populated)");
        node = buildNode().start();

        logger.info("Running Cluster Health (wait for the shards to startup)");
        clusterHealth = node.client().admin().cluster().health(clusterHealthRequest().waitForYellowStatus().waitForActiveShards(1)).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.YELLOW));

        // verify that mapping is there
        clusterState = node.client().admin().cluster().state(clusterStateRequest()).actionGet();
        assertThat(clusterState.state().metaData().index("test").mapping("type1"), notNullValue());

        logger.info("Getting #1, should not exists");
        GetResponse getResponse = node.client().get(getRequest("test").type("type1").id("1")).actionGet();
        assertThat(getResponse.exists(), equalTo(false));
        logger.info("Getting #2");
        getResponse = node.client().get(getRequest("test").type("type1").id("2")).actionGet();
        assertThat(getResponse.sourceAsString(), equalTo(source("2", "test")));

        // Now flush and add some data (so we have index recovery as well)
        logger.info("Flushing, so we have actual content in the index files (#2 should be in the index)");
        node.client().admin().indices().flush(flushRequest("test")).actionGet();
        logger.info("Indexing #3, so we have something in the translog as well");
        node.client().index(Requests.indexRequest("test").type("type1").id("3").source(source("3", "test"))).actionGet();

        logger.info("Gateway Snapshot");
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();
        logger.info("Gateway Snapshot (should be a no op)");
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();

        logger.info("Closing the server");
        node.close();
        logger.info("Starting the server, should recover from the gateway (both index and translog)");
        node = buildNode().start();

        logger.info("Running Cluster Health (wait for the shards to startup)");
        clusterHealth = node.client().admin().cluster().health(clusterHealthRequest().waitForYellowStatus().waitForActiveShards(1)).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.YELLOW));

        logger.info("Getting #1, should not exists");
        getResponse = node.client().get(getRequest("test").type("type1").id("1")).actionGet();
        assertThat(getResponse.exists(), equalTo(false));
        logger.info("Getting #2 (not from the translog, but from the index)");
        getResponse = node.client().get(getRequest("test").type("type1").id("2")).actionGet();
        assertThat(getResponse.sourceAsString(), equalTo(source("2", "test")));
        logger.info("Getting #3 (from the translog)");
        getResponse = node.client().get(getRequest("test").type("type1").id("3")).actionGet();
        assertThat(getResponse.sourceAsString(), equalTo(source("3", "test")));

        logger.info("Flushing, so we have actual content in the index files (#3 should be in the index now as well)");
        node.client().admin().indices().flush(flushRequest("test")).actionGet();

        logger.info("Gateway Snapshot");
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();
        logger.info("Gateway Snapshot (should be a no op)");
        node.client().admin().indices().gatewaySnapshot(gatewaySnapshotRequest("test")).actionGet();

        logger.info("Closing the server");
        node.close();
        logger.info("Starting the server, should recover from the gateway (just from the index, nothing in the translog)");
        node = buildNode().start();

        logger.info("Running Cluster Health (wait for the shards to startup)");
        clusterHealth = node.client().admin().cluster().health(clusterHealthRequest().waitForYellowStatus().waitForActiveShards(1)).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.YELLOW));

        logger.info("Getting #1, should not exists");
        getResponse = node.client().get(getRequest("test").type("type1").id("1")).actionGet();
        assertThat(getResponse.exists(), equalTo(false));
        logger.info("Getting #2 (not from the translog, but from the index)");
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//        }

        Future<Boolean> setResult = memcachedClient.set("/test/person/1", 0, jsonBuilder().startObject().field("test", "value").endObject().copiedBytes());
        assertThat(setResult.get(10, TimeUnit.SECONDS), equalTo(true));

        ClusterHealthResponse health = node.client().admin().cluster().prepareHealth().setWaitForYellowStatus().execute().actionGet();
        assertThat(health.timedOut(), equalTo(false));

        String getResult = (String) memcachedClient.get("/_refresh");
        System.out.println("REFRESH " + getResult);
        assertThat(getResult, Matchers.containsString("\"total\":10"));
        assertThat(getResult, Matchers.containsString("\"successful\":5"));
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    @BeforeMethod public void createIndex() {
        logger.info("creating index [test]");
        node.client().admin().indices().create(createIndexRequest("test").settings(settingsBuilder().put("index.numberOfReplicas", 0))).actionGet();
        logger.info("Running Cluster Health");
        ClusterHealthResponse clusterHealth = node.client().admin().cluster().health(clusterHealthRequest().waitForGreenStatus()).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.GREEN));
    }
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        startNode("server1");

        client("server1").admin().indices().prepareCreate("test").execute().actionGet(5000);

        logger.info("Running Cluster Health");
        ClusterHealthResponse clusterHealth = client("server1").admin().cluster().health(clusterHealthRequest().waitForYellowStatus()).actionGet();
        logger.info("Done Cluster Health, status " + clusterHealth.status());
        assertThat(clusterHealth.timedOut(), equalTo(false));
        assertThat(clusterHealth.status(), equalTo(ClusterHealthStatus.YELLOW));

        client("server1").index(indexRequest("test").type("type1").id("1").source(source("1", "test"))).actionGet();
        FlushResponse flushResponse = client("server1").admin().indices().flush(flushRequest("test")).actionGet();
        assertThat(flushResponse.totalShards(), equalTo(10));
        assertThat(flushResponse.successfulShards(), equalTo(5));
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        }
    }

    private void printClusterStatus() {
        ClusterHealthRequestBuilder healthRequestBuilder = elasticsearchClient.admin().cluster().prepareHealth();
        ClusterHealthResponse response = healthRequestBuilder.execute().actionGet();
        if (response.getStatus().equals(ClusterHealthStatus.RED)) {
            LOG.error("Cluster health is RED. Indexing ability will be limited");
        } else if (response.getStatus().equals(ClusterHealthStatus.YELLOW)) {
            LOG.warn("Cluster health is YELLOW.");
        } else if (response.getStatus().equals(ClusterHealthStatus.GREEN)) {
            LOG.info("Cluster health is GREEN.");
        }
    }
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                ).actionGet();
            }

        }

        ClusterHealthResponse response = elasticSearchClient.admin().cluster().health(new ClusterHealthRequest().waitForYellowStatus()).actionGet();
        LOG.debug("Cluster status: " + response.getStatus());
    }
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    //TESTED - throws a horrible slow exception, but does fail
   
  // 3. Sort out replication, if necessary
   
    // First time through, check the replication factor is correct...
    ClusterHealthResponse health =
      _elasticClient.admin().cluster().health(new ClusterHealthRequest(sIndexName)).actionGet();
   
    ClusterIndexHealth indexStatus = health.getIndices().get(sIndexName);
    if ((null != indexStatus) && (1 == indexStatus.getShards().size())) { // 1 shard => this is a "data local" index
           
      int nNumNodes = health.getNumberOfDataNodes();
      Builder localSettings = ImmutableSettings.settingsBuilder();
      if (nNumNodes > 1) {
        localSettings.put("number_of_replicas", nNumNodes - 1); // (ie shard=1 + replicas==num_nodes)
      }
      else {
        localSettings.put("number_of_replicas", 1); // (System doesn't work very well if has no replicas?)       
      }
      UpdateSettingsUtils.updateSettings(_elasticClient.admin().indices(), sIndexName, localSettings.build());
     
      //(Wait for above operation to be completed)
      _elasticClient.admin().cluster().health(new ClusterHealthRequest(sIndexName).waitForYellowStatus()).actionGet();
    }
    else if ((null != indexStatus) && (indexStatus.getNumberOfReplicas() > 1)) { // Multi shard index, just need to check there aren't too many replicas for nodes
     
      int nNumNodes = health.getNumberOfDataNodes();
      int nReplicas = indexStatus.getNumberOfReplicas();
      int nNodesPerReplica = properties.getElasticNodesPerReplica();
      if ((nNumNodes > 0) && (nNodesPerReplica > 0)) {
        int nNewReplicas = (nNumNodes + nNodesPerReplica-1)/nNodesPerReplica;
          // (ie round up)
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        //Initialize the connection to Elastic Search, and ensure our index is available.
        client = getClient();
            boolean hasIndex = false;
            try {
                log.info("Checking Elastic Search cluster health...");
                ClusterHealthResponse healthResponse = client.admin().cluster().prepareHealth(indexName).setWaitForYellowStatus()
                        .setTimeout(TimeValue.timeValueSeconds(30)).execute()
                        .actionGet();

                if (healthResponse.isTimedOut() || healthResponse.getStatus() == ClusterHealthStatus.RED) {
                    throw new IllegalStateException("cluster not ready due to health: " + healthResponse.toString());
                }

                log.info("DS ES Checking if index exists");
                hasIndex = client.admin().indices().prepareExists(indexName).execute().actionGet().isExists();
            } catch (Exception e) {
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        public Void execute(Client client, String indexName, OperationContext helper) {
          ClusterHealthRequestBuilder request = client.admin().cluster().prepareHealth(indexName);

          request.setWaitForGreenStatus().setTimeout(_healthTimeout);

          ClusterHealthResponse response = request.execute().actionGet();

          if (response.getStatus() != ClusterHealthStatus.GREEN) {
            throw new IllegalStateException("cluster not ready for rebuild (status " + response.getStatus()
                + ")");
          }

          return null;
        }
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