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Apache Solr (module: core)
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.solr.update;
import java.io.IOException;
import java.io.InputStream;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.impl.ConcurrentUpdateHttp2SolrClient;
import org.apache.solr.client.solrj.impl.Http2SolrClient;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.util.StrUtils;
import org.apache.solr.update.SolrCmdDistributor.SolrError;
import org.eclipse.jetty.client.api.Response;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StreamingSolrClients {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final int runnerCount = Integer.getInteger("solr.cloud.replication.runners", 1);
// should be less than solr.jetty.http.idleTimeout
private final int pollQueueTimeMillis =
Integer.getInteger("solr.cloud.client.pollQueueTime", 10000);
private Http2SolrClient httpClient;
private Map solrClients = new HashMap<>();
private List errors = Collections.synchronizedList(new ArrayList<>());
private ExecutorService updateExecutor;
public StreamingSolrClients(UpdateShardHandler updateShardHandler) {
this.updateExecutor = updateShardHandler.getUpdateExecutor();
this.httpClient = updateShardHandler.getUpdateOnlyHttpClient();
}
public List getErrors() {
return errors;
}
public void clearErrors() {
errors.clear();
}
public synchronized SolrClient getSolrClient(final SolrCmdDistributor.Req req) {
String url = getFullUrl(req.node.getUrl());
ConcurrentUpdateHttp2SolrClient client = solrClients.get(url);
if (client == null) {
// NOTE: increasing to more than 1 threadCount for the client could cause updates to be
// reordered on a greater scale since the current behavior is to only increase the number of
// connections/Runners when the queue is more than half full.
final var defaultCore =
StrUtils.isNotBlank(req.node.getCoreName()) ? req.node.getCoreName() : null;
client =
new ErrorReportingConcurrentUpdateSolrClient.Builder(
req.node.getBaseUrl(), httpClient, req, errors)
.withDefaultCollection(defaultCore)
.withQueueSize(100)
.withThreadCount(runnerCount)
.withExecutorService(updateExecutor)
.alwaysStreamDeletes()
.setPollQueueTime(
pollQueueTimeMillis, TimeUnit.MILLISECONDS) // minimize connections created
.build();
solrClients.put(url, client);
}
return client;
}
public synchronized void blockUntilFinished() throws IOException {
for (ConcurrentUpdateHttp2SolrClient client : solrClients.values()) {
client.blockUntilFinished();
}
}
public synchronized void shutdown() {
for (ConcurrentUpdateHttp2SolrClient client : solrClients.values()) {
client.close();
}
}
private String getFullUrl(String url) {
String fullUrl;
if (!url.startsWith("http://") && !url.startsWith("https://")) {
fullUrl = "http://" + url;
} else {
fullUrl = url;
}
return fullUrl;
}
public Http2SolrClient getHttpClient() {
return httpClient;
}
public ExecutorService getUpdateExecutor() {
return updateExecutor;
}
}
class ErrorReportingConcurrentUpdateSolrClient extends ConcurrentUpdateHttp2SolrClient {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final SolrCmdDistributor.Req req;
private final List errors;
public ErrorReportingConcurrentUpdateSolrClient(Builder builder) {
super(builder);
this.req = builder.req;
this.errors = builder.errors;
}
@Override
public void handleError(Throwable ex) {
log.error("Error when calling {} to {}", req, req.node.getUrl(), ex);
SolrError error = new SolrError();
error.e = (Exception) ex;
if (ex instanceof SolrException) {
error.statusCode = ((SolrException) ex).code();
}
error.req = req;
errors.add(error);
if (!req.shouldRetry(error)) {
// only track the error if we are not retrying the request
req.trackRequestResult(null, null, false);
}
}
@Override
public void onSuccess(Response resp, InputStream respBody) {
req.trackRequestResult(resp, respBody, true);
}
static class Builder extends ConcurrentUpdateHttp2SolrClient.Builder {
protected SolrCmdDistributor.Req req;
protected List errors;
/**
* @param baseSolrUrl the base URL of a Solr node. Should not contain a collection or
* core name
* @param client the client to use in making requests
* @param req the command distributor request object for this client
* @param errors a collector for any errors
*/
public Builder(
String baseSolrUrl,
Http2SolrClient client,
SolrCmdDistributor.Req req,
List errors) {
super(baseSolrUrl, client);
this.req = req;
this.errors = errors;
}
@Override
public ErrorReportingConcurrentUpdateSolrClient build() {
return new ErrorReportingConcurrentUpdateSolrClient(this);
}
}
}