dnet-hadoop/dhp-workflows/dhp-graph-provision-scholex.../src/main/java/eu/dnetlib/dhp/provision/SparkIndexCollectionOnES.java

62 lines
2.0 KiB
Java

package eu.dnetlib.dhp.provision;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.io.IOUtils;
import org.apache.spark.SparkConf;
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.sql.SparkSession;
import org.elasticsearch.spark.rdd.api.java.JavaEsSpark;
import com.fasterxml.jackson.databind.ObjectMapper;
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
public class
SparkIndexCollectionOnES {
public static void main(String[] args) throws Exception {
final ArgumentApplicationParser parser = new ArgumentApplicationParser(
IOUtils
.toString(
SparkIndexCollectionOnES.class
.getResourceAsStream(
"/eu/dnetlib/dhp/provision/index_on_es.json")));
parser.parseArgument(args);
SparkConf conf = new SparkConf()
.setAppName(SparkIndexCollectionOnES.class.getSimpleName())
.setMaster(parser.get("master"));
conf.set("spark.sql.shuffle.partitions", "4000");
final String sourcePath = parser.get("sourcePath");
final String index = parser.get("index");
final String idPath = parser.get("idPath");
final String cluster = parser.get("cluster");
final String clusterJson = IOUtils
.toString(DropAndCreateESIndex.class.getResourceAsStream("/eu/dnetlib/dhp/provision/cluster.json"));
final Map<String, String> clusterMap = new ObjectMapper().readValue(clusterJson, Map.class);
final SparkSession spark = SparkSession.builder().config(conf).getOrCreate();
final JavaSparkContext sc = new JavaSparkContext(spark.sparkContext());
JavaRDD<String> inputRdd = sc.textFile(sourcePath);
Map<String, String> esCfg = new HashMap<>();
esCfg.put("es.nodes", clusterMap.get(cluster));
esCfg.put("es.mapping.id", idPath);
esCfg.put("es.batch.write.retry.count", "8");
esCfg.put("es.batch.write.retry.wait", "60s");
esCfg.put("es.batch.size.entries", "200");
esCfg.put("es.nodes.wan.only", "true");
JavaEsSpark.saveJsonToEs(inputRdd, index, esCfg);
}
}