"main" java.io.IOException: Mkdirs failed to create /user/centos/hbase-staging (exists=false, cwd=file:/home/centos)
Exception in thread "main" java.io.IOException: Mkdirs failed to create /user/centos/hbase-staging (exists=false, cwd=file:/home/centos)
at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:440)
at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:426)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:906)
at org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:1071)
at org.apache.hadoop.io.SequenceFile$RecordCompressWriter.<init>(SequenceFile.java:1371)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:272)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:294)
at org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.writePartitions(HFileOutputFormat2.java:335)
at org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.configurePartitioner(HFileOutputFormat2.java:596)
at org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.configureIncrementalLoad(HFileOutputFormat2.java:440)
at org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.configureIncrementalLoad(HFileOutputFormat2.java:405)
at org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2.configureIncrementalLoad(HFileOutputFormat2.java:386)
at bulkloadExample.BulkloadData.main(BulkloadData.java:88)
- package bulkloadExample;
- import org.apache.hadoop.conf.Configuration;
- import org.apache.hadoop.fs.FileSystem;
- import org.apache.hadoop.fs.Path;
- import org.apache.hadoop.hbase.HBaseConfiguration;
- import org.apache.hadoop.hbase.TableName;
- import org.apache.hadoop.hbase.client.Connection;
- import org.apache.hadoop.hbase.client.ConnectionFactory;
- import org.apache.hadoop.hbase.client.Put;
- import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
- import org.apache.hadoop.hbase.mapreduce.HFileOutputFormat2;
- import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles;
- import org.apache.hadoop.hbase.mapreduce.PutSortReducer;
- import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;
- import org.apache.hadoop.hbase.util.Bytes;
- import org.apache.hadoop.io.LongWritable;
- import org.apache.hadoop.io.Text;
- import org.apache.hadoop.mapreduce.Job;
- import org.apache.hadoop.mapreduce.Mapper;
- import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
- import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
- import java.io.IOException;
- import java.net.URI;
- public class BulkloadData {
- static final String JOBNAME = "BulkLoad";
- static final String TABLENAME = "wqbin:duowan_user_bulkLoad";
- static final String PATH_IN = "/datain/duowan_user.txt"; //输入路径
- static final String PATH_OUT = "/dataout"; //输入路径HFILE
- static final String SEPARATOR = "\t";
- static final byte[] ColumnFamily = "f".getBytes(); // 列簇
- // static final byte[] row_id = "id".getBytes(); // 列名
- static final byte[] name = "name".getBytes();
- static final byte[] pass = "pass".getBytes();
- static final byte[] mail = "mail".getBytes();
- static final byte[] nickname = "nickname".getBytes();
- public static class Map extends Mapper<LongWritable, Text, ImmutableBytesWritable, Put> {
- protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
- String[] strArr = value.toString().split(SEPARATOR);
- String row = strArr[0];
- Put put = new Put(Bytes.toBytes(row.toString())); // rowkey
- put.add(ColumnFamily, name, Bytes.toBytes(strArr[1]));
- put.add(ColumnFamily, pass, Bytes.toBytes(strArr[2]));
- put.add(ColumnFamily, mail, Bytes.toBytes(strArr[3]));
- put.add(ColumnFamily, nickname, Bytes.toBytes(strArr[3]));
- context.write(new ImmutableBytesWritable(value.getBytes()), put);
- }
- }
- public static void main(String[] args) throws Exception {
- Configuration conf = HBaseConfiguration.create();
- Connection conn = ConnectionFactory.createConnection(conf);
- // conf.set("hbase.zookeeper.quorum", "xx,xx,xx");
- conf.set("fs.defaultFS","file:///");
- System.setProperty("HADOOP_USER_NAME", "centos");
- Job job = Job.getInstance(conf, JOBNAME);
- job.setJarByClass(BulkloadData.class);
- job.setMapOutputKeyClass(ImmutableBytesWritable.class);
- job.setMapOutputValueClass(Put.class);
- TableMapReduceUtil.addDependencyJars(job);
- job.setMapperClass(Map.class);
- //这个 SorterReducer(KeyValueSortReducer或PutSortReducer) 可以不指定,
- //因为源码中已经做了判断
- job.setReducerClass(PutSortReducer.class);
- job.setOutputFormatClass(HFileOutputFormat2.class);
- FileSystem fs = FileSystem.get(URI.create("/"),conf);
- Path outPath = new Path(PATH_OUT);
- // if (fs.exists(outPath))fs.delete(outPath, true);
- FileOutputFormat.setOutputPath(job, outPath);
- FileInputFormat.setInputPaths(job, new Path(PATH_IN));
- // HTable table = new HTable(conf, TABLENAME);
- HFileOutputFormat2.configureIncrementalLoad(job, conn.getTable(TableName.valueOf(TABLENAME)),
- conn.getRegionLocator(TableName.valueOf(TABLENAME)));
- System.out.println("load完毕");
- if(job.waitForCompletion(true)){
- LoadIncrementalHFiles loader = new LoadIncrementalHFiles(conf);
- // loader.doBulkLoad( table);
- }
- System.exit(0);
- }
- }
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