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二维线性回归

2023-05-18 40
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简介： 二维线性回归

共享算法

import org.apache.spark.SparkConf;
import org.apache.spark.api.java.JavaPairRDD;
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.mllib.linalg.Vectors;
import org.apache.spark.mllib.recommendation.Rating;
import org.apache.spark.mllib.regression.LabeledPoint;
import org.apache.spark.mllib.regression.LinearRegressionModel;
import org.apache.spark.mllib.regression.LinearRegressionWithSGD;
import scala.Tuple2;
public class xxhg {
  public static void main(String[] args) {
  // TODO Auto-generated method stub
  SparkConf conf=new SparkConf().setAppName("als").setMaster("local");
  JavaSparkContext sc=new JavaSparkContext(conf);
  String path="file:///home/gyq/下载/spark-2.3.2-bin-hadoop2.7/data/mllib/ridge-data/jj.data";
  JavaRDD<String> data=sc.textFile(path);
  JavaRDD<LabeledPoint> parseData= data.map(f->{
    String[] parts=f.split(",");
    String[] features=parts[1].split(" ");
    double[] v=new double[features.length];
    for(int i=0;i<features.length-1;i++) {
    v[i]=Double.valueOf(features[i]);
    }
    return new LabeledPoint(Double.parseDouble(parts[0]),Vectors.dense(v));
  });
  //LabeledPoint(Double.parseDouble(parts[0]),Vectors.dense(v));
  parseData.cache();
  int numIters=100;
  double stepSize=0.00000001;
  LinearRegressionModel model=LinearRegressionWithSGD.train(parseData.rdd(),
    numIters,stepSize);
  JavaPairRDD<Double,Double> values=parseData.mapToPair(f->
  new Tuple2<>(model.predict(f.features()),f.label()));
  values.foreach(f->System.out.println(f));
  double MSE=values.mapToDouble(f->{
    double diff=f._1()-f._2();
    return diff*diff;
  }).mean();//.mean()返回平均值
  System.out.println("training Mean Squared Error="+MSE);
  }
}

5.1.png5.2.png

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=256m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0
2021-12-30 13:07:01 WARN  Utils:66 - Your hostname, gyq-virtual-machine resolves to a loopback address: 127.0.1.1; using 192.168.159.130 instead (on interface ens33)
2021-12-30 13:07:01 WARN  Utils:66 - Set SPARK_LOCAL_IP if you need to bind to another address
2021-12-30 13:07:02 INFO  SparkContext:54 - Running Spark version 2.3.2
2021-12-30 13:07:04 WARN  NativeCodeLoader:62 - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2021-12-30 13:07:05 INFO  SparkContext:54 - Submitted application: als
2021-12-30 13:07:05 INFO  SecurityManager:54 - Changing view acls to: gyq
2021-12-30 13:07:05 INFO  SecurityManager:54 - Changing modify acls to: gyq
2021-12-30 13:07:05 INFO  SecurityManager:54 - Changing view acls groups to: 
2021-12-30 13:07:05 INFO  SecurityManager:54 - Changing modify acls groups to: 
2021-12-30 13:07:05 INFO  SecurityManager:54 - SecurityManager: authentication disabled; ui acls disabled; users  with view permissions: Set(gyq); groups with view permissions: Set(); users  with modify permissions: Set(gyq); groups with modify permissions: Set()
2021-12-30 13:07:07 INFO  Utils:54 - Successfully started service 'sparkDriver' on port 44105.
2021-12-30 13:07:08 INFO  SparkEnv:54 - Registering MapOutputTracker
2021-12-30 13:07:08 INFO  SparkEnv:54 - Registering BlockManagerMaster
2021-12-30 13:07:08 INFO  BlockManagerMasterEndpoint:54 - Using org.apache.spark.storage.DefaultTopologyMapper for getting topology information
2021-12-30 13:07:08 INFO  BlockManagerMasterEndpoint:54 - BlockManagerMasterEndpoint up
2021-12-30 13:07:08 INFO  DiskBlockManager:54 - Created local directory at /tmp/blockmgr-109263cd-d100-439c-b707-8c434a3f5ee4
2021-12-30 13:07:08 INFO  MemoryStore:54 - MemoryStore started with capacity 161.4 MB
2021-12-30 13:07:08 INFO  SparkEnv:54 - Registering OutputCommitCoordinator
2021-12-30 13:07:09 INFO  log:192 - Logging initialized @14054ms
2021-12-30 13:07:09 INFO  Server:351 - jetty-9.3.z-SNAPSHOT, build timestamp: unknown, git hash: unknown
2021-12-30 13:07:10 INFO  Server:419 - Started @14619ms
2021-12-30 13:07:10 WARN  Utils:66 - Service 'SparkUI' could not bind on port 4040. Attempting port 4041.
2021-12-30 13:07:10 WARN  Utils:66 - Service 'SparkUI' could not bind on port 4041. Attempting port 4042.
2021-12-30 13:07:10 INFO  AbstractConnector:278 - Started ServerConnector@4eee1714{HTTP/1.1,[http/1.1]}{0.0.0.0:4042}
2021-12-30 13:07:10 INFO  Utils:54 - Successfully started service 'SparkUI' on port 4042.
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@4ef27d66{/jobs,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@591e58fa{/jobs/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@3954d008{/jobs/job,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@593e824f{/jobs/job/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@72ccd81a{/stages,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@6d8792db{/stages/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@64bc21ac{/stages/stage,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@ce5a68e{/stages/stage/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@9d157ff{/stages/pool,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@2f162cc0{/stages/pool/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@5df417a7{/storage,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@7c041b41{/storage/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@7f69d591{/storage/rdd,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@61078690{/storage/rdd/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@1cb3ec38{/environment,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@403132fc{/environment/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@71c5b236{/executors,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@2cab9998{/executors/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@2f7a7219{/executors/threadDump,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@669513d8{/executors/threadDump/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@3a1d593e{/static,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@32232e55{/,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@5217f3d0{/api,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@6fa590ba{/jobs/job/kill,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@6e9319f{/stages/stage/kill,null,AVAILABLE,@Spark}
2021-12-30 13:07:10 INFO  SparkUI:54 - Bound SparkUI to 0.0.0.0, and started at http://192.168.159.130:4042
2021-12-30 13:07:11 INFO  Executor:54 - Starting executor ID driver on host localhost
2021-12-30 13:07:11 INFO  Utils:54 - Successfully started service 'org.apache.spark.network.netty.NettyBlockTransferService' on port 33217.
2021-12-30 13:07:11 INFO  NettyBlockTransferService:54 - Server created on 192.168.159.130:33217
2021-12-30 13:07:11 INFO  BlockManager:54 - Using org.apache.spark.storage.RandomBlockReplicationPolicy for block replication policy
2021-12-30 13:07:12 INFO  BlockManagerMaster:54 - Registering BlockManager BlockManagerId(driver, 192.168.159.130, 33217, None)
2021-12-30 13:07:12 INFO  BlockManagerMasterEndpoint:54 - Registering block manager 192.168.159.130:33217 with 161.4 MB RAM, BlockManagerId(driver, 192.168.159.130, 33217, None)
2021-12-30 13:07:12 INFO  BlockManagerMaster:54 - Registered BlockManager BlockManagerId(driver, 192.168.159.130, 33217, None)
2021-12-30 13:07:12 INFO  BlockManager:54 - Initialized BlockManager: BlockManagerId(driver, 192.168.159.130, 33217, None)
2021-12-30 13:07:13 INFO  ContextHandler:781 - Started o.s.j.s.ServletContextHandler@288a4658{/metrics/json,null,AVAILABLE,@Spark}
2021-12-30 13:07:23 INFO  MemoryStore:54 - Block broadcast_0 stored as values in memory (estimated size 236.7 KB, free 161.2 MB)
2021-12-30 13:07:23 INFO  MemoryStore:54 - Block broadcast_0_piece0 stored as bytes in memory (estimated size 22.9 KB, free 161.1 MB)
2021-12-30 13:07:23 INFO  BlockManagerInfo:54 - Added broadcast_0_piece0 in memory on 192.168.159.130:33217 (size: 22.9 KB, free: 161.4 MB)
2021-12-30 13:07:24 INFO  SparkContext:54 - Created broadcast 0 from textFile at xxhg.java:20
2021-12-30 13:07:26 INFO  FileInputFormat:249 - Total input paths to process : 1
2021-12-30 13:07:26 INFO  SparkContext:54 - Starting job: first at GeneralizedLinearAlgorithm.scala:204
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Got job 0 (first at GeneralizedLinearAlgorithm.scala:204) with 1 output partitions
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Final stage: ResultStage 0 (first at GeneralizedLinearAlgorithm.scala:204)
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Submitting ResultStage 0 (MapPartitionsRDD[3] at map at GeneralizedLinearAlgorithm.scala:204), which has no missing parents
2021-12-30 13:07:27 INFO  MemoryStore:54 - Block broadcast_1 stored as values in memory (estimated size 4.8 KB, free 161.1 MB)
2021-12-30 13:07:27 INFO  MemoryStore:54 - Block broadcast_1_piece0 stored as bytes in memory (estimated size 2.8 KB, free 161.1 MB)
2021-12-30 13:07:27 INFO  BlockManagerInfo:54 - Added broadcast_1_piece0 in memory on 192.168.159.130:33217 (size: 2.8 KB, free: 161.4 MB)
2021-12-30 13:07:27 INFO  SparkContext:54 - Created broadcast 1 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:27 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 0 (MapPartitionsRDD[3] at map at GeneralizedLinearAlgorithm.scala:204) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:27 INFO  TaskSchedulerImpl:54 - Adding task set 0.0 with 1 tasks
2021-12-30 13:07:28 INFO  TaskSetManager:54 - Starting task 0.0 in stage 0.0 (TID 0, localhost, executor driver, partition 0, PROCESS_LOCAL, 7924 bytes)
2021-12-30 13:07:28 INFO  Executor:54 - Running task 0.0 in stage 0.0 (TID 0)
2021-12-30 13:07:28 INFO  HadoopRDD:54 - Input split: file:/home/gyq/下载/spark-2.3.2-bin-hadoop2.7/data/mllib/ridge-data/jj.data:0+634
2021-12-30 13:07:28 INFO  MemoryStore:54 - Block rdd_2_0 stored as values in memory (estimated size 512.0 B, free 161.1 MB)
2021-12-30 13:07:28 INFO  BlockManagerInfo:54 - Added rdd_2_0 in memory on 192.168.159.130:33217 (size: 512.0 B, free: 161.4 MB)
2021-12-30 13:07:29 INFO  Executor:54 - 1 block locks were not released by TID = 0:
[rdd_2_0]
2021-12-30 13:07:29 INFO  Executor:54 - Finished task 0.0 in stage 0.0 (TID 0). 781 bytes result sent to driver
2021-12-30 13:07:29 INFO  TaskSetManager:54 - Finished task 0.0 in stage 0.0 (TID 0) in 1338 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:29 INFO  TaskSchedulerImpl:54 - Removed TaskSet 0.0, whose tasks have all completed, from pool 
2021-12-30 13:07:29 INFO  DAGScheduler:54 - ResultStage 0 (first at GeneralizedLinearAlgorithm.scala:204) finished in 1.830 s
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Job 0 finished: first at GeneralizedLinearAlgorithm.scala:204, took 2.391373 s
2021-12-30 13:07:29 INFO  SparkContext:54 - Starting job: count at GradientDescent.scala:209
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Got job 1 (count at GradientDescent.scala:209) with 1 output partitions
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Final stage: ResultStage 1 (count at GradientDescent.scala:209)
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Submitting ResultStage 1 (MapPartitionsRDD[4] at map at GeneralizedLinearAlgorithm.scala:297), which has no missing parents
2021-12-30 13:07:29 INFO  MemoryStore:54 - Block broadcast_2 stored as values in memory (estimated size 4.5 KB, free 161.1 MB)
2021-12-30 13:07:29 INFO  MemoryStore:54 - Block broadcast_2_piece0 stored as bytes in memory (estimated size 2.7 KB, free 161.1 MB)
2021-12-30 13:07:29 INFO  BlockManagerInfo:54 - Added broadcast_2_piece0 in memory on 192.168.159.130:33217 (size: 2.7 KB, free: 161.4 MB)
2021-12-30 13:07:29 INFO  SparkContext:54 - Created broadcast 2 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 1 (MapPartitionsRDD[4] at map at GeneralizedLinearAlgorithm.scala:297) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:29 INFO  TaskSchedulerImpl:54 - Adding task set 1.0 with 1 tasks
2021-12-30 13:07:29 INFO  TaskSetManager:54 - Starting task 0.0 in stage 1.0 (TID 1, localhost, executor driver, partition 0, PROCESS_LOCAL, 7924 bytes)
2021-12-30 13:07:29 INFO  Executor:54 - Running task 0.0 in stage 1.0 (TID 1)
2021-12-30 13:07:29 INFO  BlockManager:54 - Found block rdd_2_0 locally
2021-12-30 13:07:29 INFO  Executor:54 - Finished task 0.0 in stage 1.0 (TID 1). 875 bytes result sent to driver
2021-12-30 13:07:29 INFO  TaskSetManager:54 - Finished task 0.0 in stage 1.0 (TID 1) in 49 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:29 INFO  DAGScheduler:54 - ResultStage 1 (count at GradientDescent.scala:209) finished in 0.104 s
2021-12-30 13:07:29 INFO  DAGScheduler:54 - Job 1 finished: count at GradientDescent.scala:209, took 0.113471 s
2021-12-30 13:07:29 INFO  TaskSchedulerImpl:54 - Removed TaskSet 1.0, whose tasks have all completed, from pool 
2021-12-30 13:07:33 INFO  MemoryStore:54 - Block broadcast_3 stored as values in memory (estimated size 120.0 B, free 161.1 MB)
2021-12-30 13:07:33 INFO  MemoryStore:54 - Block broadcast_3_piece0 stored as bytes in memory (estimated size 153.0 B, free 161.1 MB)
2021-12-30 13:07:33 INFO  BlockManagerInfo:54 - Added broadcast_3_piece0 in memory on 192.168.159.130:33217 (size: 153.0 B, free: 161.4 MB)
2021-12-30 13:07:33 INFO  SparkContext:54 - Created broadcast 3 from broadcast at GradientDescent.scala:235
2021-12-30 13:07:34 INFO  SparkContext:54 - Starting job: treeAggregate at GradientDescent.scala:239
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Got job 2 (treeAggregate at GradientDescent.scala:239) with 1 output partitions
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Final stage: ResultStage 2 (treeAggregate at GradientDescent.scala:239)
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Submitting ResultStage 2 (MapPartitionsRDD[6] at treeAggregate at GradientDescent.scala:239), which has no missing parents
2021-12-30 13:07:34 INFO  MemoryStore:54 - Block broadcast_4 stored as values in memory (estimated size 6.9 KB, free 161.1 MB)
2021-12-30 13:07:34 INFO  MemoryStore:54 - Block broadcast_4_piece0 stored as bytes in memory (estimated size 3.8 KB, free 161.1 MB)
2021-12-30 13:07:34 INFO  BlockManagerInfo:54 - Added broadcast_4_piece0 in memory on 192.168.159.130:33217 (size: 3.8 KB, free: 161.4 MB)
2021-12-30 13:07:34 INFO  SparkContext:54 - Created broadcast 4 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 2 (MapPartitionsRDD[6] at treeAggregate at GradientDescent.scala:239) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:34 INFO  TaskSchedulerImpl:54 - Adding task set 2.0 with 1 tasks
2021-12-30 13:07:34 INFO  TaskSetManager:54 - Starting task 0.0 in stage 2.0 (TID 2, localhost, executor driver, partition 0, PROCESS_LOCAL, 8033 bytes)
2021-12-30 13:07:34 INFO  Executor:54 - Running task 0.0 in stage 2.0 (TID 2)
2021-12-30 13:07:34 INFO  BlockManager:54 - Found block rdd_2_0 locally
2021-12-30 13:07:34 WARN  BLAS:61 - Failed to load implementation from: com.github.fommil.netlib.NativeSystemBLAS
2021-12-30 13:07:34 WARN  BLAS:61 - Failed to load implementation from: com.github.fommil.netlib.NativeRefBLAS
2021-12-30 13:07:34 INFO  Executor:54 - Finished task 0.0 in stage 2.0 (TID 2). 1158 bytes result sent to driver
2021-12-30 13:07:34 INFO  TaskSetManager:54 - Finished task 0.0 in stage 2.0 (TID 2) in 131 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:34 INFO  TaskSchedulerImpl:54 - Removed TaskSet 2.0, whose tasks have all completed, from pool 
2021-12-30 13:07:34 INFO  DAGScheduler:54 - ResultStage 2 (treeAggregate at GradientDescent.scala:239) finished in 0.284 s
2021-12-30 13:07:34 INFO  DAGScheduler:54 - Job 2 finished: treeAggregate at GradientDescent.scala:239, took 0.292528 s
2021-12-30 13:07:34 INFO  TorrentBroadcast:54 - Destroying Broadcast(3) (from destroy at GradientDescent.scala:249)
2021-12-30 13:07:34 INFO  MemoryStore:54 - Block broadcast_5 stored as values in memory (estimated size 120.0 B, free 161.1 MB)
2021-12-30 13:07:34 INFO  MemoryStore:54 - Block broadcast_5_piece0 stored as bytes in memory (estimated size 205.0 B, free 161.1 MB)
2021-12-30 13:07:34 INFO  BlockManagerInfo:54 - Added broadcast_5_piece0 in memory on 192.168.159.130:33217 (size: 205.0 B, free: 161.4 MB)
2021-12-30 13:07:34 INFO  SparkContext:54 - Created broadcast 5 from broadcast at GradientDescent.scala:235
2021-12-30 13:07:34 INFO  BlockManagerInfo:54 - Removed broadcast_3_piece0 on 192.168.159.130:33217 in memory (size: 153.0 B, free: 161.4 MB)
2021-12-30 13:07:35 INFO  SparkContext:54 - Starting job: treeAggregate at GradientDescent.scala:239
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Got job 3 (treeAggregate at GradientDescent.scala:239) with 1 output partitions
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Final stage: ResultStage 3 (treeAggregate at GradientDescent.scala:239)
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Submitting ResultStage 3 (MapPartitionsRDD[8] at treeAggregate at GradientDescent.scala:239), which has no missing parents
2021-12-30 13:07:35 INFO  MemoryStore:54 - Block broadcast_6 stored as values in memory (estimated size 6.9 KB, free 161.1 MB)
2021-12-30 13:07:35 INFO  MemoryStore:54 - Block broadcast_6_piece0 stored as bytes in memory (estimated size 3.8 KB, free 161.1 MB)
2021-12-30 13:07:35 INFO  BlockManagerInfo:54 - Added broadcast_6_piece0 in memory on 192.168.159.130:33217 (size: 3.8 KB, free: 161.4 MB)
2021-12-30 13:07:35 INFO  SparkContext:54 - Created broadcast 6 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 3 (MapPartitionsRDD[8] at treeAggregate at GradientDescent.scala:239) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:35 INFO  TaskSchedulerImpl:54 - Adding task set 3.0 with 1 tasks
2021-12-30 13:07:35 INFO  TaskSetManager:54 - Starting task 0.0 in stage 3.0 (TID 3, localhost, executor driver, partition 0, PROCESS_LOCAL, 8033 bytes)
2021-12-30 13:07:35 INFO  Executor:54 - Running task 0.0 in stage 3.0 (TID 3)
2021-12-30 13:07:35 INFO  BlockManager:54 - Found block rdd_2_0 locally
2021-12-30 13:07:35 INFO  Executor:54 - Finished task 0.0 in stage 3.0 (TID 3). 1201 bytes result sent to driver
2021-12-30 13:07:35 INFO  TaskSetManager:54 - Finished task 0.0 in stage 3.0 (TID 3) in 39 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:35 INFO  TaskSchedulerImpl:54 - Removed TaskSet 3.0, whose tasks have all completed, from pool 
2021-12-30 13:07:35 INFO  DAGScheduler:54 - ResultStage 3 (treeAggregate at GradientDescent.scala:239) finished in 0.115 s
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Job 3 finished: treeAggregate at GradientDescent.scala:239, took 0.141668 s
2021-12-30 13:07:35 INFO  TorrentBroadcast:54 - Destroying Broadcast(5) (from destroy at GradientDescent.scala:249)
2021-12-30 13:07:35 INFO  BlockManagerInfo:54 - Removed broadcast_5_piece0 on 192.168.159.130:33217 in memory (size: 205.0 B, free: 161.4 MB)
2021-12-30 13:07:35 INFO  GradientDescent:54 - GradientDescent.runMiniBatchSGD finished. Last 10 stochastic losses 0.033101385688005004, 0.03310138080116999
2021-12-30 13:07:35 INFO  SparkContext:54 - Starting job: foreach at xxhg.java:40
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Got job 4 (foreach at xxhg.java:40) with 1 output partitions
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Final stage: ResultStage 4 (foreach at xxhg.java:40)
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Submitting ResultStage 4 (MapPartitionsRDD[9] at mapToPair at xxhg.java:38), which has no missing parents
2021-12-30 13:07:35 INFO  MemoryStore:54 - Block broadcast_7 stored as values in memory (estimated size 5.6 KB, free 161.1 MB)
2021-12-30 13:07:35 INFO  MemoryStore:54 - Block broadcast_7_piece0 stored as bytes in memory (estimated size 3.1 KB, free 161.1 MB)
2021-12-30 13:07:35 INFO  BlockManagerInfo:54 - Added broadcast_7_piece0 in memory on 192.168.159.130:33217 (size: 3.1 KB, free: 161.4 MB)
2021-12-30 13:07:35 INFO  SparkContext:54 - Created broadcast 7 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 4 (MapPartitionsRDD[9] at mapToPair at xxhg.java:38) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:35 INFO  TaskSchedulerImpl:54 - Adding task set 4.0 with 1 tasks
2021-12-30 13:07:35 INFO  TaskSetManager:54 - Starting task 0.0 in stage 4.0 (TID 4, localhost, executor driver, partition 0, PROCESS_LOCAL, 7924 bytes)
2021-12-30 13:07:35 INFO  Executor:54 - Running task 0.0 in stage 4.0 (TID 4)
2021-12-30 13:07:35 INFO  BlockManager:54 - Found block rdd_2_0 locally
(-4.203303429003143E-8,-0.4307829)
(-3.2601926081988176E-8,-0.1625189)
(-2.6924660473041324E-8,-0.1625189)
(-3.438424206034633E-8,-0.1625189)
2021-12-30 13:07:35 INFO  Executor:54 - Finished task 0.0 in stage 4.0 (TID 4). 837 bytes result sent to driver
2021-12-30 13:07:35 INFO  TaskSetManager:54 - Finished task 0.0 in stage 4.0 (TID 4) in 260 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:35 INFO  TaskSchedulerImpl:54 - Removed TaskSet 4.0, whose tasks have all completed, from pool 
2021-12-30 13:07:35 INFO  DAGScheduler:54 - ResultStage 4 (foreach at xxhg.java:40) finished in 0.316 s
2021-12-30 13:07:35 INFO  DAGScheduler:54 - Job 4 finished: foreach at xxhg.java:40, took 0.327307 s
2021-12-30 13:07:36 INFO  SparkContext:54 - Starting job: mean at xxhg.java:46
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Got job 5 (mean at xxhg.java:46) with 1 output partitions
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Final stage: ResultStage 5 (mean at xxhg.java:46)
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Parents of final stage: List()
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Missing parents: List()
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Submitting ResultStage 5 (MapPartitionsRDD[12] at mean at xxhg.java:46), which has no missing parents
2021-12-30 13:07:36 INFO  MemoryStore:54 - Block broadcast_8 stored as values in memory (estimated size 6.2 KB, free 161.1 MB)
2021-12-30 13:07:36 INFO  MemoryStore:54 - Block broadcast_8_piece0 stored as bytes in memory (estimated size 3.4 KB, free 161.1 MB)
2021-12-30 13:07:36 INFO  BlockManagerInfo:54 - Added broadcast_8_piece0 in memory on 192.168.159.130:33217 (size: 3.4 KB, free: 161.4 MB)
2021-12-30 13:07:36 INFO  SparkContext:54 - Created broadcast 8 from broadcast at DAGScheduler.scala:1039
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Submitting 1 missing tasks from ResultStage 5 (MapPartitionsRDD[12] at mean at xxhg.java:46) (first 15 tasks are for partitions Vector(0))
2021-12-30 13:07:36 INFO  TaskSchedulerImpl:54 - Adding task set 5.0 with 1 tasks
2021-12-30 13:07:36 INFO  TaskSetManager:54 - Starting task 0.0 in stage 5.0 (TID 5, localhost, executor driver, partition 0, PROCESS_LOCAL, 7924 bytes)
2021-12-30 13:07:36 INFO  Executor:54 - Running task 0.0 in stage 5.0 (TID 5)
2021-12-30 13:07:36 INFO  BlockManager:54 - Found block rdd_2_0 locally
2021-12-30 13:07:36 INFO  Executor:54 - Finished task 0.0 in stage 5.0 (TID 5). 959 bytes result sent to driver
2021-12-30 13:07:36 INFO  TaskSetManager:54 - Finished task 0.0 in stage 5.0 (TID 5) in 57 ms on localhost (executor driver) (1/1)
2021-12-30 13:07:36 INFO  TaskSchedulerImpl:54 - Removed TaskSet 5.0, whose tasks have all completed, from pool 
2021-12-30 13:07:36 INFO  DAGScheduler:54 - ResultStage 5 (mean at xxhg.java:46) finished in 0.151 s
2021-12-30 13:07:36 INFO  DAGScheduler:54 - Job 5 finished: mean at xxhg.java:46, took 0.163834 s
training Mean Squared Error=0.0662027546913127
2021-12-30 13:07:36 INFO  SparkContext:54 - Invoking stop() from shutdown hook
2021-12-30 13:07:36 INFO  AbstractConnector:318 - Stopped Spark@4eee1714{HTTP/1.1,[http/1.1]}{0.0.0.0:4042}
2021-12-30 13:07:36 INFO  SparkUI:54 - Stopped Spark web UI at http://192.168.159.130:4042
2021-12-30 13:07:36 INFO  MapOutputTrackerMasterEndpoint:54 - MapOutputTrackerMasterEndpoint stopped!
2021-12-30 13:07:37 INFO  MemoryStore:54 - MemoryStore cleared
2021-12-30 13:07:37 INFO  BlockManager:54 - BlockManager stopped
2021-12-30 13:07:37 INFO  BlockManagerMaster:54 - BlockManagerMaster stopped
2021-12-30 13:07:37 INFO  OutputCommitCoordinator$OutputCommitCoordinatorEndpoint:54 - OutputCommitCoordinator stopped!
2021-12-30 13:07:37 INFO  SparkContext:54 - Successfully stopped SparkContext
2021-12-30 13:07:37 INFO  ShutdownHookManager:54 - Shutdown hook called
2021-12-30 13:07:37 INFO  ShutdownHookManager:54 - Deleting directory /tmp/spark-f89c641f-23cd-46fd-9ec3-e54f2e9f8b12

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