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Added support for acknowledgement from other nodes in open/close inde…
…x api The open/close index api now waits for an acknowledgement from all the other nodes before returning its response, till the timeout (configurable, default 10 secs) expires. The returned acknowledged flag reflects whether the cluster state change was acknowledged by all the nodes or the timeout expired before. Closes #3400
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154 changes: 154 additions & 0 deletions
154
src/main/java/org/elasticsearch/cluster/action/index/NodeIndicesStateUpdatedAction.java
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/* | ||
* Licensed to ElasticSearch and Shay Banon 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. | ||
*/ | ||
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package org.elasticsearch.cluster.action.index; | ||
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import org.elasticsearch.ElasticSearchException; | ||
import org.elasticsearch.cluster.ClusterService; | ||
import org.elasticsearch.cluster.node.DiscoveryNodes; | ||
import org.elasticsearch.common.component.AbstractComponent; | ||
import org.elasticsearch.common.inject.Inject; | ||
import org.elasticsearch.common.io.stream.StreamInput; | ||
import org.elasticsearch.common.io.stream.StreamOutput; | ||
import org.elasticsearch.common.settings.Settings; | ||
import org.elasticsearch.common.unit.TimeValue; | ||
import org.elasticsearch.threadpool.ThreadPool; | ||
import org.elasticsearch.transport.*; | ||
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import java.io.IOException; | ||
import java.util.List; | ||
import java.util.concurrent.CopyOnWriteArrayList; | ||
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public class NodeIndicesStateUpdatedAction extends AbstractComponent { | ||
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private final ThreadPool threadPool; | ||
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private final TransportService transportService; | ||
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private final ClusterService clusterService; | ||
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private final List<Listener> listeners = new CopyOnWriteArrayList<Listener>(); | ||
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@Inject | ||
public NodeIndicesStateUpdatedAction(Settings settings, ThreadPool threadPool, TransportService transportService, ClusterService clusterService) { | ||
super(settings); | ||
this.threadPool = threadPool; | ||
this.transportService = transportService; | ||
this.clusterService = clusterService; | ||
transportService.registerHandler(NodeIndexStateUpdatedTransportHandler.ACTION, new NodeIndexStateUpdatedTransportHandler()); | ||
} | ||
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public void add(final Listener listener, TimeValue timeout) { | ||
listeners.add(listener); | ||
threadPool.schedule(timeout, ThreadPool.Names.GENERIC, new Runnable() { | ||
@Override | ||
public void run() { | ||
boolean removed = listeners.remove(listener); | ||
if (removed) { | ||
listener.onTimeout(); | ||
} | ||
} | ||
}); | ||
} | ||
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public void remove(Listener listener) { | ||
listeners.remove(listener); | ||
} | ||
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public void nodeIndexStateUpdated(final NodeIndexStateUpdatedResponse response) throws ElasticSearchException { | ||
DiscoveryNodes nodes = clusterService.state().nodes(); | ||
if (nodes.localNodeMaster()) { | ||
threadPool.generic().execute(new Runnable() { | ||
@Override | ||
public void run() { | ||
innerNodeIndexStateUpdated(response); | ||
} | ||
}); | ||
} else { | ||
transportService.sendRequest(clusterService.state().nodes().masterNode(), | ||
NodeIndexStateUpdatedTransportHandler.ACTION, response, EmptyTransportResponseHandler.INSTANCE_SAME); | ||
} | ||
} | ||
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private void innerNodeIndexStateUpdated(NodeIndexStateUpdatedResponse response) { | ||
for (Listener listener : listeners) { | ||
listener.onIndexStateUpdated(response); | ||
} | ||
} | ||
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private class NodeIndexStateUpdatedTransportHandler extends BaseTransportRequestHandler<NodeIndexStateUpdatedResponse> { | ||
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static final String ACTION = "cluster/nodeIndexStateUpdated"; | ||
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@Override | ||
public NodeIndexStateUpdatedResponse newInstance() { | ||
return new NodeIndexStateUpdatedResponse(); | ||
} | ||
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@Override | ||
public void messageReceived(NodeIndexStateUpdatedResponse response, TransportChannel channel) throws Exception { | ||
innerNodeIndexStateUpdated(response); | ||
channel.sendResponse(TransportResponse.Empty.INSTANCE); | ||
} | ||
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@Override | ||
public String executor() { | ||
return ThreadPool.Names.SAME; | ||
} | ||
} | ||
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public static interface Listener { | ||
void onIndexStateUpdated(NodeIndexStateUpdatedResponse response); | ||
void onTimeout(); | ||
} | ||
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public static class NodeIndexStateUpdatedResponse extends TransportRequest { | ||
private String nodeId; | ||
private long version; | ||
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NodeIndexStateUpdatedResponse() { | ||
} | ||
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public NodeIndexStateUpdatedResponse(String nodeId, long version) { | ||
this.nodeId = nodeId; | ||
this.version = version; | ||
} | ||
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public String nodeId() { | ||
return nodeId; | ||
} | ||
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public long version() { | ||
return version; | ||
} | ||
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@Override | ||
public void writeTo(StreamOutput out) throws IOException { | ||
super.writeTo(out); | ||
out.writeString(nodeId); | ||
out.writeLong(version); | ||
} | ||
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@Override | ||
public void readFrom(StreamInput in) throws IOException { | ||
super.readFrom(in); | ||
nodeId = in.readString(); | ||
version = in.readLong(); | ||
} | ||
} | ||
} |
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