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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.action.admin.cluster.node.hotthreads;
import com.google.common.collect.Lists;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.nodes.NodeOperationRequest;
import org.elasticsearch.action.support.nodes.TransportNodesOperationAction;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterService;
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.monitor.jvm.HotThreads;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.atomic.AtomicReferenceArray;
/**
*
*/
public class TransportNodesHotThreadsAction extends TransportNodesOperationAction<NodesHotThreadsRequest, NodesHotThreadsResponse, TransportNodesHotThreadsAction.NodeRequest, NodeHotThreads> {
@Inject
public TransportNodesHotThreadsAction(Settings settings, ClusterName clusterName, ThreadPool threadPool,
ClusterService clusterService, TransportService transportService, ActionFilters actionFilters) {
super(settings, NodesHotThreadsAction.NAME, clusterName, threadPool, clusterService, transportService, actionFilters);
}
@Override
protected String executor() {
return ThreadPool.Names.GENERIC;
}
@Override
protected NodesHotThreadsResponse newResponse(NodesHotThreadsRequest request, AtomicReferenceArray responses) {
final List<NodeHotThreads> nodes = Lists.newArrayList();
for (int i = 0; i < responses.length(); i++) {
Object resp = responses.get(i);
if (resp instanceof NodeHotThreads) {
nodes.add((NodeHotThreads) resp);
}
}
return new NodesHotThreadsResponse(clusterName, nodes.toArray(new NodeHotThreads[nodes.size()]));
}
@Override
protected NodesHotThreadsRequest newRequest() {
return new NodesHotThreadsRequest();
}
@Override
protected NodeRequest newNodeRequest() {
return new NodeRequest();
}
@Override
protected NodeRequest newNodeRequest(String nodeId, NodesHotThreadsRequest request) {
return new NodeRequest(nodeId, request);
}
@Override
protected NodeHotThreads newNodeResponse() {
return new NodeHotThreads();
}
@Override
protected NodeHotThreads nodeOperation(NodeRequest request) throws ElasticsearchException {
HotThreads hotThreads = new HotThreads()
.busiestThreads(request.request.threads)
.type(request.request.type)
.interval(request.request.interval)
.threadElementsSnapshotCount(request.request.snapshots);
try {
return new NodeHotThreads(clusterService.localNode(), hotThreads.detect());
} catch (Exception e) {
throw new ElasticsearchException("failed to detect hot threads", e);
}
}
@Override
protected boolean accumulateExceptions() {
return false;
}
static class NodeRequest extends NodeOperationRequest {
NodesHotThreadsRequest request;
NodeRequest() {
}
NodeRequest(String nodeId, NodesHotThreadsRequest request) {
super(request, nodeId);
this.request = request;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
request = new NodesHotThreadsRequest();
request.readFrom(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
request.writeTo(out);
}
}
}