/*
* 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.nutch.indexer.solr;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.FileOutputFormat;
import org.apache.hadoop.mapred.JobClient;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.nutch.indexer.IndexerMapReduce;
import org.apache.nutch.indexer.NutchIndexWriterFactory;
import org.apache.nutch.util.HadoopFSUtil;
import org.apache.nutch.util.NutchConfiguration;
import org.apache.nutch.util.NutchJob;
import org.apache.nutch.util.TimingUtil;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class SolrIndexer extends Configured implements Tool {
public static Log LOG = LogFactory.getLog(SolrIndexer.class);
public SolrIndexer() {
super(null);
}
public SolrIndexer(Configuration conf) {
super(conf);
}
public void indexSolr(String solrUrl, Path crawlDb, Path linkDb,
List<Path> segments) throws IOException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long start = System.currentTimeMillis();
LOG.info("SolrIndexer: starting at " + sdf.format(start));
final JobConf job = new NutchJob(getConf());
job.setJobName("index-solr " + solrUrl);
IndexerMapReduce.initMRJob(crawlDb, linkDb, segments, job);
job.set(SolrConstants.SERVER_URL, solrUrl);
NutchIndexWriterFactory.addClassToConf(job, SolrWriter.class);
job.setReduceSpeculativeExecution(false);
final Path tmp = new Path("tmp_" + System.currentTimeMillis() + "-" +
new Random().nextInt());
FileOutputFormat.setOutputPath(job, tmp);
try {
JobClient.runJob(job);
// do the commits once and for all the reducers in one go
SolrServer solr = new CommonsHttpSolrServer(solrUrl);
solr.commit();
long end = System.currentTimeMillis();
LOG.info("SolrIndexer: finished at " + sdf.format(end) + ", elapsed: " + TimingUtil.elapsedTime(start, end));
}
catch (Exception e){
LOG.error(e);
} finally {
FileSystem.get(job).delete(tmp, true);
}
}
public int run(String[] args) throws Exception {
if (args.length < 4) {
System.err.println("Usage: SolrIndexer <solr url> <crawldb> <linkdb> (<segment> ... | -dir <segments>)");
return -1;
}
final Path crawlDb = new Path(args[1]);
final Path linkDb = new Path(args[2]);
final List<Path> segments = new ArrayList<Path>();
for (int i = 3; i < args.length; i++) {
if (args[i].equals("-dir")) {
Path dir = new Path(args[++i]);
FileSystem fs = dir.getFileSystem(getConf());
FileStatus[] fstats = fs.listStatus(dir,
HadoopFSUtil.getPassDirectoriesFilter(fs));
Path[] files = HadoopFSUtil.getPaths(fstats);
for (Path p : files) {
segments.add(p);
}
} else {
segments.add(new Path(args[i]));
}
}
try {
indexSolr(args[0], crawlDb, linkDb, segments);
return 0;
} catch (final Exception e) {
LOG.fatal("SolrIndexer: " + StringUtils.stringifyException(e));
return -1;
}
}
public static void main(String[] args) throws Exception {
final int res = ToolRunner.run(NutchConfiguration.create(), new SolrIndexer(), args);
System.exit(res);
}
}