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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.cluster;
import org.elasticsearch.action.ActionRequestBuilder;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.action.bulk.BulkRequestBuilder;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.discovery.DiscoveryModule;
import org.elasticsearch.discovery.DiscoverySettings;
import org.elasticsearch.discovery.MasterNotDiscoveredException;
import org.elasticsearch.discovery.zen.ZenDiscovery;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
import org.elasticsearch.test.ESIntegTestCase.Scope;
import java.util.Collections;
import static org.elasticsearch.common.unit.TimeValue.timeValueSeconds;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertExists;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertHitCount;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertThrows;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.lessThan;
@ClusterScope(scope = Scope.TEST, numDataNodes = 0, autoMinMasterNodes = false)
public class NoMasterNodeIT extends ESIntegTestCase {
@Override
protected Settings nodeSettings(int nodeOrdinal) {
return Settings.builder().put(super.nodeSettings(nodeOrdinal))
.put(DiscoveryModule.DISCOVERY_TYPE_SETTING.getKey(), "zen").build();
}
public void testNoMasterActions() throws Exception {
Settings settings = Settings.builder()
.put("discovery.type", "zen")
.put("action.auto_create_index", true)
.put("discovery.zen.minimum_master_nodes", 2)
.put(ZenDiscovery.PING_TIMEOUT_SETTING.getKey(), "200ms")
.put("discovery.initial_state_timeout", "500ms")
.put(DiscoverySettings.NO_MASTER_BLOCK_SETTING.getKey(), "all")
.build();
TimeValue timeout = TimeValue.timeValueMillis(200);
internalCluster().startNode(settings);
// start a second node, create an index, and then shut it down so we have no master block
internalCluster().startNode(settings);
createIndex("test");
client().admin().cluster().prepareHealth("test").setWaitForGreenStatus().execute().actionGet();
internalCluster().stopRandomDataNode();
assertBusy(new Runnable() {
@Override
public void run() {
ClusterState state = client().admin().cluster().prepareState().setLocal(true).execute().actionGet().getState();
assertTrue(state.blocks().hasGlobalBlock(DiscoverySettings.NO_MASTER_BLOCK_ID));
}
});
assertThrows(client().prepareGet("test", "type1", "1"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().prepareGet("no_index", "type1", "1"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().prepareMultiGet().add("test", "type1", "1"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().prepareMultiGet().add("no_index", "type1", "1"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().admin().indices().prepareAnalyze("test", "this is a test"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().admin().indices().prepareAnalyze("no_index", "this is a test"),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().prepareSearch("test").setSize(0),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
assertThrows(client().prepareSearch("no_index").setSize(0),
ClusterBlockException.class, RestStatus.SERVICE_UNAVAILABLE
);
checkUpdateAction(false, timeout,
client().prepareUpdate("test", "type1", "1")
.setScript(new Script(
ScriptType.INLINE, Script.DEFAULT_SCRIPT_LANG, "test script", Collections.emptyMap())).setTimeout(timeout));
checkUpdateAction(true, timeout,
client().prepareUpdate("no_index", "type1", "1")
.setScript(new Script(
ScriptType.INLINE, Script.DEFAULT_SCRIPT_LANG, "test script", Collections.emptyMap())).setTimeout(timeout));
checkWriteAction(false, timeout,
client().prepareIndex("test", "type1", "1").setSource(XContentFactory.jsonBuilder().startObject().endObject()).setTimeout(timeout));
checkWriteAction(true, timeout,
client().prepareIndex("no_index", "type1", "1").setSource(XContentFactory.jsonBuilder().startObject().endObject()).setTimeout(timeout));
BulkRequestBuilder bulkRequestBuilder = client().prepareBulk();
bulkRequestBuilder.add(client().prepareIndex("test", "type1", "1").setSource(XContentFactory.jsonBuilder().startObject().endObject()));
bulkRequestBuilder.add(client().prepareIndex("test", "type1", "2").setSource(XContentFactory.jsonBuilder().startObject().endObject()));
// the request should fail very quickly - use a large timeout and make sure it didn't pass...
timeout = new TimeValue(5000);
bulkRequestBuilder.setTimeout(timeout);
checkWriteAction(false, timeout, bulkRequestBuilder);
bulkRequestBuilder = client().prepareBulk();
bulkRequestBuilder.add(client().prepareIndex("no_index", "type1", "1").setSource(XContentFactory.jsonBuilder().startObject().endObject()));
bulkRequestBuilder.add(client().prepareIndex("no_index", "type1", "2").setSource(XContentFactory.jsonBuilder().startObject().endObject()));
bulkRequestBuilder.setTimeout(timeout);
checkWriteAction(true, timeValueSeconds(5), bulkRequestBuilder);
internalCluster().startNode(settings);
client().admin().cluster().prepareHealth().setWaitForGreenStatus().setWaitForNodes("2").execute().actionGet();
}
void checkUpdateAction(boolean autoCreateIndex, TimeValue timeout, ActionRequestBuilder<?, ?, ?> builder) {
// we clean the metadata when loosing a master, therefore all operations on indices will auto create it, if allowed
long now = System.currentTimeMillis();
try {
builder.get();
fail("expected ClusterBlockException or MasterNotDiscoveredException");
} catch (ClusterBlockException | MasterNotDiscoveredException e) {
if (e instanceof MasterNotDiscoveredException) {
assertTrue(autoCreateIndex);
} else {
assertFalse(autoCreateIndex);
}
// verify we waited before giving up...
assertThat(e.status(), equalTo(RestStatus.SERVICE_UNAVAILABLE));
assertThat(System.currentTimeMillis() - now, greaterThan(timeout.millis() - 50));
}
}
void checkWriteAction(boolean indexShouldBeAutoCreated, TimeValue timeout, ActionRequestBuilder<?, ?, ?> builder) {
long now = System.currentTimeMillis();
try {
builder.get();
fail("Expected ClusterBlockException");
} catch (ClusterBlockException e) {
if (indexShouldBeAutoCreated) {
// timeout is 200
assertThat(System.currentTimeMillis() - now, greaterThan(timeout.millis() - 50));
assertThat(e.status(), equalTo(RestStatus.SERVICE_UNAVAILABLE));
} else {
// timeout is 5000
assertThat(System.currentTimeMillis() - now, lessThan(timeout.millis() + 50));
}
}
}
public void testNoMasterActionsWriteMasterBlock() throws Exception {
Settings settings = Settings.builder()
.put("discovery.type", "zen")
.put("action.auto_create_index", false)
.put("discovery.zen.minimum_master_nodes", 2)
.put(ZenDiscovery.PING_TIMEOUT_SETTING.getKey(), "200ms")
.put("discovery.initial_state_timeout", "500ms")
.put(DiscoverySettings.NO_MASTER_BLOCK_SETTING.getKey(), "write")
.build();
internalCluster().startNode(settings);
// start a second node, create an index, and then shut it down so we have no master block
internalCluster().startNode(settings);
prepareCreate("test1").setSettings(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1).get();
prepareCreate("test2").setSettings(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 2, IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0).get();
client().admin().cluster().prepareHealth("_all").setWaitForGreenStatus().get();
client().prepareIndex("test1", "type1", "1").setSource("field", "value1").get();
client().prepareIndex("test2", "type1", "1").setSource("field", "value1").get();
refresh();
ensureSearchable("test1", "test2");
ClusterStateResponse clusterState = client().admin().cluster().prepareState().get();
logger.info("Cluster state:\n{}", clusterState.getState());
internalCluster().stopRandomDataNode();
assertTrue(awaitBusy(() -> {
ClusterState state = client().admin().cluster().prepareState().setLocal(true).get().getState();
return state.blocks().hasGlobalBlock(DiscoverySettings.NO_MASTER_BLOCK_ID);
}
));
GetResponse getResponse = client().prepareGet("test1", "type1", "1").get();
assertExists(getResponse);
SearchResponse countResponse = client().prepareSearch("test1").setSize(0).get();
assertHitCount(countResponse, 1L);
SearchResponse searchResponse = client().prepareSearch("test1").get();
assertHitCount(searchResponse, 1L);
countResponse = client().prepareSearch("test2").setSize(0).get();
assertThat(countResponse.getTotalShards(), equalTo(2));
assertThat(countResponse.getSuccessfulShards(), equalTo(1));
TimeValue timeout = TimeValue.timeValueMillis(200);
long now = System.currentTimeMillis();
try {
client().prepareUpdate("test1", "type1", "1").setDoc(Requests.INDEX_CONTENT_TYPE, "field", "value2").setTimeout(timeout).get();
fail("Expected ClusterBlockException");
} catch (ClusterBlockException e) {
assertThat(System.currentTimeMillis() - now, greaterThan(timeout.millis() - 50));
assertThat(e.status(), equalTo(RestStatus.SERVICE_UNAVAILABLE));
}
now = System.currentTimeMillis();
try {
client().prepareIndex("test1", "type1", "1").setSource(XContentFactory.jsonBuilder().startObject().endObject()).setTimeout(timeout).get();
fail("Expected ClusterBlockException");
} catch (ClusterBlockException e) {
assertThat(System.currentTimeMillis() - now, greaterThan(timeout.millis() - 50));
assertThat(e.status(), equalTo(RestStatus.SERVICE_UNAVAILABLE));
}
internalCluster().startNode(settings);
client().admin().cluster().prepareHealth().setWaitForGreenStatus().setWaitForNodes("2").get();
}
}
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