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org.elasticsearch.action.admin.cluster.settings.TransportClusterUpdateSettingsAction Maven / Gradle / Ivy
Elasticsearch - Open Source, Distributed, RESTful Search Engine
/*
* 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.action.admin.cluster.settings;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
import org.elasticsearch.cluster.AckedClusterStateUpdateTask;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlocks;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.routing.allocation.AllocationService;
import org.elasticsearch.cluster.routing.allocation.RoutingAllocation;
import org.elasticsearch.cluster.settings.ClusterDynamicSettings;
import org.elasticsearch.cluster.settings.DynamicSettings;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.Priority;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.Map;
import static org.elasticsearch.cluster.ClusterState.builder;
/**
*
*/
public class TransportClusterUpdateSettingsAction extends TransportMasterNodeOperationAction {
private final AllocationService allocationService;
private final DynamicSettings dynamicSettings;
@Inject
public TransportClusterUpdateSettingsAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool,
AllocationService allocationService, @ClusterDynamicSettings DynamicSettings dynamicSettings) {
super(settings, transportService, clusterService, threadPool);
this.allocationService = allocationService;
this.dynamicSettings = dynamicSettings;
}
@Override
protected String executor() {
return ThreadPool.Names.SAME;
}
@Override
protected String transportAction() {
return ClusterUpdateSettingsAction.NAME;
}
@Override
protected ClusterUpdateSettingsRequest newRequest() {
return new ClusterUpdateSettingsRequest();
}
@Override
protected ClusterUpdateSettingsResponse newResponse() {
return new ClusterUpdateSettingsResponse();
}
@Override
protected void masterOperation(final ClusterUpdateSettingsRequest request, final ClusterState state, final ActionListener listener) throws ElasticsearchException {
final ImmutableSettings.Builder transientUpdates = ImmutableSettings.settingsBuilder();
final ImmutableSettings.Builder persistentUpdates = ImmutableSettings.settingsBuilder();
clusterService.submitStateUpdateTask("cluster_update_settings", Priority.IMMEDIATE, new AckedClusterStateUpdateTask() {
private volatile boolean changed = false;
@Override
public boolean mustAck(DiscoveryNode discoveryNode) {
return true;
}
@Override
public void onAllNodesAcked(@Nullable Throwable t) {
if (changed) {
reroute(true);
} else {
listener.onResponse(new ClusterUpdateSettingsResponse(true, transientUpdates.build(), persistentUpdates.build()));
}
}
@Override
public void onAckTimeout() {
if (changed) {
reroute(false);
} else {
listener.onResponse(new ClusterUpdateSettingsResponse(false, transientUpdates.build(), persistentUpdates.build()));
}
}
private void reroute(final boolean updateSettingsAcked) {
clusterService.submitStateUpdateTask("reroute_after_cluster_update_settings", Priority.URGENT, new AckedClusterStateUpdateTask() {
@Override
public boolean mustAck(DiscoveryNode discoveryNode) {
//we wait for the reroute ack only if the update settings was acknowledged
return updateSettingsAcked;
}
@Override
public void onAllNodesAcked(@Nullable Throwable t) {
//we return when the cluster reroute is acked (the acknowledged flag depends on whether the update settings was acknowledged)
listener.onResponse(new ClusterUpdateSettingsResponse(updateSettingsAcked, transientUpdates.build(), persistentUpdates.build()));
}
@Override
public void onAckTimeout() {
//we return when the cluster reroute ack times out (acknowledged false)
listener.onResponse(new ClusterUpdateSettingsResponse(false, transientUpdates.build(), persistentUpdates.build()));
}
@Override
public TimeValue ackTimeout() {
return request.timeout();
}
@Override
public TimeValue timeout() {
return request.masterNodeTimeout();
}
@Override
public void onFailure(String source, Throwable t) {
//if the reroute fails we only log
logger.debug("failed to perform [{}]", t, source);
}
@Override
public ClusterState execute(final ClusterState currentState) {
// now, reroute in case things that require it changed (e.g. number of replicas)
RoutingAllocation.Result routingResult = allocationService.reroute(currentState);
if (!routingResult.changed()) {
return currentState;
}
return ClusterState.builder(currentState).routingResult(routingResult).build();
}
@Override
public void clusterStateProcessed(String source, ClusterState oldState, ClusterState newState) {
}
});
}
@Override
public TimeValue ackTimeout() {
return request.timeout();
}
@Override
public TimeValue timeout() {
return request.masterNodeTimeout();
}
@Override
public void onFailure(String source, Throwable t) {
logger.debug("failed to perform [{}]", t, source);
listener.onFailure(t);
}
@Override
public ClusterState execute(final ClusterState currentState) {
ImmutableSettings.Builder transientSettings = ImmutableSettings.settingsBuilder();
transientSettings.put(currentState.metaData().transientSettings());
for (Map.Entry entry : request.transientSettings().getAsMap().entrySet()) {
if (dynamicSettings.hasDynamicSetting(entry.getKey()) || entry.getKey().startsWith("logger.")) {
String error = dynamicSettings.validateDynamicSetting(entry.getKey(), entry.getValue());
if (error == null) {
transientSettings.put(entry.getKey(), entry.getValue());
transientUpdates.put(entry.getKey(), entry.getValue());
changed = true;
} else {
logger.warn("ignoring transient setting [{}], [{}]", entry.getKey(), error);
}
} else {
logger.warn("ignoring transient setting [{}], not dynamically updateable", entry.getKey());
}
}
ImmutableSettings.Builder persistentSettings = ImmutableSettings.settingsBuilder();
persistentSettings.put(currentState.metaData().persistentSettings());
for (Map.Entry entry : request.persistentSettings().getAsMap().entrySet()) {
if (dynamicSettings.hasDynamicSetting(entry.getKey()) || entry.getKey().startsWith("logger.")) {
String error = dynamicSettings.validateDynamicSetting(entry.getKey(), entry.getValue());
if (error == null) {
persistentSettings.put(entry.getKey(), entry.getValue());
persistentUpdates.put(entry.getKey(), entry.getValue());
changed = true;
} else {
logger.warn("ignoring persistent setting [{}], [{}]", entry.getKey(), error);
}
} else {
logger.warn("ignoring persistent setting [{}], not dynamically updateable", entry.getKey());
}
}
if (!changed) {
return currentState;
}
MetaData.Builder metaData = MetaData.builder(currentState.metaData())
.persistentSettings(persistentSettings.build())
.transientSettings(transientSettings.build());
ClusterBlocks.Builder blocks = ClusterBlocks.builder().blocks(currentState.blocks());
boolean updatedReadOnly = metaData.persistentSettings().getAsBoolean(MetaData.SETTING_READ_ONLY, false) || metaData.transientSettings().getAsBoolean(MetaData.SETTING_READ_ONLY, false);
if (updatedReadOnly) {
blocks.addGlobalBlock(MetaData.CLUSTER_READ_ONLY_BLOCK);
} else {
blocks.removeGlobalBlock(MetaData.CLUSTER_READ_ONLY_BLOCK);
}
return builder(currentState).metaData(metaData).blocks(blocks).build();
}
@Override
public void clusterStateProcessed(String source, ClusterState oldState, ClusterState newState) {
}
});
}
}
