写了个简单的mr 操作file到hfile,在把hfile倒入hbase的例子，在此记录一下：
File2HFile2HBase.java代码：
package com.lyq.study.example;
import java.io.IOException;
import java.security.PrivilegedAction;
import java.util.Arrays;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles;
import org.apache.hadoop.hbase.mapreduce.TableOutputFormat;
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 org.apache.hadoop.security.UserGroupInformation;
import com.lyq.study.lib.HFileOutputFormatBase;
import com.lyq.study.util.HBaseConfigUtils;
public class File2HFile2HBase {
private static final Log LOG = LogFactory.getLog(File2HFile2HBase.class);
private String tableName = "testtable1";
private static class MapperClass extends
Mapper<LongWritable, Text, ImmutableBytesWritable, Put> {
public byte[] family = Bytes.toBytes("info");
public String[] columns = { "card", "type", "amount", "time", "many" };
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
String[] columnVals = value.toString().split(",");
String rowkey = columnVals[0] + columnVals[3];
Put put = new Put(Bytes.toBytes(rowkey));
for (int i = 0; i < columnVals.length; i++) {
put.add(family, Bytes.toBytes(columns[i]),
Bytes.toBytes(columnVals[i]));
}
context.write(new ImmutableBytesWritable(Bytes.toBytes(rowkey)),
put);
}
}
public int run(final String[] args) throws Exception {
if (args.length < 2) {
System.err.printf("Usage: %s [generic options] <input> <output>\n",
getClass().getSimpleName());
return -1;
}
LOG.info("Usage command args: " + Arrays.toString(args));
final String hfile = args[1];
UserGroupInformation ugi = UserGroupInformation
.createRemoteUser("hadoop");
ugi.doAs(new PrivilegedAction<Void>() {
@Override
public Void run() {
try {
// 1.获取Configuration
Configuration conf = HBaseConfigUtils.getHBaseConfig(1);
conf.set(TableOutputFormat.OUTPUT_TABLE, tableName);
// 2.获取Job
Job job = getJob(conf, args);
// 3.执行Job
if (!job.waitForCompletion(true)) {
throw new IOException("【初始化数据】失败");
}
// 4.把hfile文件导入到HBase
LoadIncrementalHFiles loader = new LoadIncrementalHFiles(
conf);
HTable htable = new HTable(conf, tableName);
loader.doBulkLoad(new Path(hfile), htable);
// 5.清理hfile目录
deleteByDir(conf, new Path(hfile), true);
} catch (IOException e) {
// TODO: handle exception
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
});
return 0;
}
private Job getJob(Configuration conf, String[] args) throws IOException {
Job job = Job.getInstance(conf);
job.setJobName("File2HFile");
job.setJarByClass(File2HFile2HBase.class);
job.setMapperClass(MapperClass.class);
job.setMapOutputKeyClass(ImmutableBytesWritable.class);
job.setMapOutputValueClass(Put.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
HTable htable = new HTable(conf, tableName);
HFileOutputFormatBase.configureIncrementalLoad(job, htable, HFileOutputFormatBase.class);
return job;
}
public static boolean deleteByDir(Configuration conf, Path path,
Boolean recursive) throws IOException {
FileSystem fs = FileSystem.get(conf);
boolean success = fs.delete(path, recursive);
LOG.info("删除[" + path + "]成功? " + success);
return success;
}
public static void main(String[] args) throws Exception {
args = new String[] { "hdfs://master129:9000/test/input/data.txt",
"hdfs://master129:9000/test/output" };
File2HFile2HBase f2hf2hb = new File2HFile2HBase();
System.exit(f2hf2hb.run(args));
}
}
HFileOutputFormatBase.java代码：
/**
*
* 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 com.lyq.study.lib;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.UUID;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.KeyValueUtil;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.io.compress.Compression;
import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;
import org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder;
import org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoderImpl;
import org.apache.hadoop.hbase.io.hfile.NoOpDataBlockEncoder;
import org.apache.hadoop.hbase.mapreduce.KeyValueSerialization;
import org.apache.hadoop.hbase.mapreduce.KeyValueSortReducer;
import org.apache.hadoop.hbase.mapreduce.MutationSerialization;
import org.apache.hadoop.hbase.mapreduce.PutSortReducer;
import org.apache.hadoop.hbase.mapreduce.ResultSerialization;
import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;
import org.apache.hadoop.hbase.mapreduce.TextSortReducer;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HStore;
import org.apache.hadoop.hbase.regionserver.StoreFile;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.OutputFormat;
import org.apache.hadoop.mapreduce.RecordWriter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.partition.TotalOrderPartitioner;
/**
* Writes HFiles. Passed Cells must arrive in order. Writes current time as the
* sequence id for the file. Sets the major compacted attribute on created
* hfiles. Calling write(null,null) will forceably roll all HFiles being
* written.
* <p>
* Using this class as part of a MapReduce job is best done using
* {@link #configureIncrementalLoad(Job, HTable)}.
*
* @see KeyValueSortReducer
*/
@InterfaceAudience.Public
@InterfaceStability.Stable
public class HFileOutputFormatBase extends
FileOutputFormat<ImmutableBytesWritable, KeyValue> {// 把Cell改成了KeyValue
static Log LOG = LogFactory.getLog(HFileOutputFormatBase.class);
static final String COMPRESSION_CONF_KEY = "hbase.hfileoutputformat.families.compression";
private static final String BLOOM_TYPE_CONF_KEY = "hbase.hfileoutputformat.families.bloomtype";
private static final String DATABLOCK_ENCODING_CONF_KEY = "hbase.mapreduce.hfileoutputformat.datablock.encoding";
private static final String BLOCK_SIZE_CONF_KEY = "hbase.mapreduce.hfileoutputformat.blocksize";
public static final String _deleteRowkey = "_deleteRowkey";// 新增了该行
public RecordWriter<ImmutableBytesWritable, KeyValue> getRecordWriter(// 把cell改成了KeyValue
//去掉了static <V extends Cell> RecordWriter<ImmutableBytesWritable, V> createRecordWriter()
//把其内容直接拿到了getRecordWriter()中
final TaskAttemptContext context) throws IOException,
InterruptedException {
// Get the path of the temporary output file
final Path outputPath = FileOutputFormat.getOutputPath(context);
final Path outputdir = new FileOutputCommitter(outputPath, context)
.getWorkPath();
final Path ignoreOutputPath = getDeleteRowKeyFile(outputPath);// 新增了该行
final Configuration conf = context.getConfiguration();
final FileSystem fs = outputdir.getFileSystem(conf);
// These configs. are from hbase-*.xml
final long maxsize = conf.getLong(HConstants.HREGION_MAX_FILESIZE,
HConstants.DEFAULT_MAX_FILE_SIZE);
// Invented config. Add to hbase-*.xml if other than default
// compression.
final String defaultCompression = conf.get("hfile.compression",
Compression.Algorithm.NONE.getName());
final boolean compactionExclude = conf.getBoolean(
"hbase.mapreduce.hfileoutputformat.compaction.exclude", false);
// create a map from column family to the compression algorithm
final Map<byte[], String> compressionMap = createFamilyCompressionMap(conf);
final Map<byte[], String> bloomTypeMap = createFamilyBloomMap(conf);
final Map<byte[], String> blockSizeMap = createFamilyBlockSizeMap(conf);
String dataBlockEncodingStr = conf.get(DATABLOCK_ENCODING_CONF_KEY);
final HFileDataBlockEncoder encoder;
if (dataBlockEncodingStr == null) {
encoder = NoOpDataBlockEncoder.INSTANCE;
} else {
try {
encoder = new HFileDataBlockEncoderImpl(
DataBlockEncoding.valueOf(dataBlockEncodingStr));
} catch (IllegalArgumentException ex) {
throw new RuntimeException(
"Invalid data block encoding type configured for the param "
+ DATABLOCK_ENCODING_CONF_KEY + " : "
+ dataBlockEncodingStr);
}
}
return new RecordWriter<ImmutableBytesWritable, KeyValue>() {// 把V改成了KeyValue
// Map of families to writers and how much has been output on the
// writer.
private final Map<byte[], WriterLength> writers = new TreeMap<byte[], WriterLength>(
Bytes.BYTES_COMPARATOR);
private final FSDataOutputStream dos = fs.create(ignoreOutputPath);
private byte[] previousRow = HConstants.EMPTY_BYTE_ARRAY;
private final byte[] now = Bytes
.toBytes(System.currentTimeMillis());
private boolean rollRequested = false;
public void write(ImmutableBytesWritable row, KeyValue kv)// 把V cell改成了KeyValue kv
throws IOException {
// KeyValue kv = KeyValueUtil.ensureKeyValue(cell);//注释掉了该行
// null input == user explicitly wants to flush
if (row == null && kv == null) {
rollWriters();
return;
}
byte[] rowKey = kv.getRow();
long length = kv.getLength();
byte[] family = kv.getFamily();
if (ignore(kv)) {// 新增了该if条件判断
byte[] readBuf = rowKey;
dos.write(readBuf, 0, readBuf.length);
dos.write(Bytes.toBytes("\n"));
return;
}
WriterLength wl = this.writers.get(family);
// If this is a new column family, verify that the directory
// exists
if (wl == null) {
fs.mkdirs(new Path(outputdir, Bytes.toString(family)));
}
// If any of the HFiles for the column families has reached
// maxsize, we need to roll all the writers
if (wl != null && wl.written + length >= maxsize) {
this.rollRequested = true;
}
// This can only happen once a row is finished though
if (rollRequested
&& Bytes.compareTo(this.previousRow, rowKey) != 0) {
rollWriters();
}
// create a new HLog writer, if necessary
if (wl == null || wl.writer == null) {
wl = getNewWriter(family, conf);
}
// we now have the proper HLog writer. full steam ahead
kv.updateLatestStamp(this.now);
wl.writer.append(kv);
wl.written += length;
// Copy the row so we know when a row transition.
this.previousRow = rowKey;
}
private void rollWriters() throws IOException {
for (WriterLength wl : this.writers.values()) {
if (wl.writer != null) {
LOG.info("Writer="
+ wl.writer.getPath()
+ ((wl.written == 0) ? "" : ", wrote="
+ wl.written));
close(wl.writer);
}
wl.writer = null;
wl.written = 0;
}
this.rollRequested = false;
}
/*
* Create a new StoreFile.Writer.
*
* @param family
*
* @return A WriterLength, containing a new StoreFile.Writer.
*
* @throws IOException
*/
private WriterLength getNewWriter(byte[] family, Configuration conf)
throws IOException {
WriterLength wl = new WriterLength();
Path familydir = new Path(outputdir, Bytes.toString(family));
String compression = compressionMap.get(family);
compression = compression == null ? defaultCompression
: compression;
String bloomTypeStr = bloomTypeMap.get(family);
BloomType bloomType = BloomType.NONE;
if (bloomTypeStr != null) {
bloomType = BloomType.valueOf(bloomTypeStr);
}
String blockSizeString = blockSizeMap.get(family);
int blockSize = blockSizeString == null ? HConstants.DEFAULT_BLOCKSIZE
: Integer.parseInt(blockSizeString);
Configuration tempConf = new Configuration(conf);
tempConf.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0.0f);
wl.writer = new StoreFile.WriterBuilder(conf, new CacheConfig(
tempConf), fs, blockSize)
.withOutputDir(familydir)
.withCompression(
AbstractHFileWriter
.compressionByName(compression))
.withBloomType(bloomType)
.withComparator(KeyValue.COMPARATOR)
.withDataBlockEncoder(encoder)
.withChecksumType(HStore.getChecksumType(conf))
.withBytesPerChecksum(HStore.getBytesPerChecksum(conf))
.build();
this.writers.put(family, wl);
return wl;
}
private void close(final StoreFile.Writer w) throws IOException {
if (w != null) {
w.appendFileInfo(StoreFile.BULKLOAD_TIME_KEY,
Bytes.toBytes(System.currentTimeMillis()));
w.appendFileInfo(StoreFile.BULKLOAD_TASK_KEY, Bytes
.toBytes(context.getTaskAttemptID().toString()));
w.appendFileInfo(StoreFile.MAJOR_COMPACTION_KEY,
Bytes.toBytes(true));
w.appendFileInfo(
StoreFile.EXCLUDE_FROM_MINOR_COMPACTION_KEY,
Bytes.toBytes(compactionExclude));
w.appendTrackedTimestampsToMetadata();
w.close();
}
}
public void close(TaskAttemptContext c) throws IOException,
InterruptedException {
dos.flush();// 新增了该行
dos.close();// 新增了该行
for (WriterLength wl : this.writers.values()) {
close(wl.writer);
}
}
};
}
/*
* Data structure to hold a Writer and amount of data written on it.
*/
static class WriterLength {
long written = 0;
StoreFile.Writer writer = null;
}
/**
* Return the start keys of all of the regions in this table, as a list of
* ImmutableBytesWritable.
*/
private static List<ImmutableBytesWritable> getRegionStartKeys(HTable table)
throws IOException {
byte[][] byteKeys = table.getStartKeys();
ArrayList<ImmutableBytesWritable> ret = new ArrayList<ImmutableBytesWritable>(
byteKeys.length);
for (byte[] byteKey : byteKeys) {
ret.add(new ImmutableBytesWritable(byteKey));
}
return ret;
}
/**
* Write out a {@link SequenceFile} that can be read by
* {@link TotalOrderPartitioner} that contains the split points in
* startKeys.
*/
@SuppressWarnings("deprecation")
private static void writePartitions(Configuration conf,
Path partitionsPath, List<ImmutableBytesWritable> startKeys)
throws IOException {
LOG.info("Writing partition information to " + partitionsPath);
if (startKeys.isEmpty()) {
throw new IllegalArgumentException("No regions passed");
}
// We're generating a list of split points, and we don't ever
// have keys < the first region (which has an empty start key)
// so we need to remove it. Otherwise we would end up with an
// empty reducer with index 0
TreeSet<ImmutableBytesWritable> sorted = new TreeSet<ImmutableBytesWritable>(
startKeys);
ImmutableBytesWritable first = sorted.first();
if (!first.equals(HConstants.EMPTY_BYTE_ARRAY)) {
throw new IllegalArgumentException(
"First region of table should have empty start key. Instead has: "
+ Bytes.toStringBinary(first.get()));
}
sorted.remove(first);
// Write the actual file
FileSystem fs = partitionsPath.getFileSystem(conf);
SequenceFile.Writer writer = SequenceFile.createWriter(fs, conf,
partitionsPath, ImmutableBytesWritable.class,
NullWritable.class);
try {
for (ImmutableBytesWritable startKey : sorted) {
writer.append(startKey, NullWritable.get());
}
} finally {
writer.close();
}
}
/**
* Configure a MapReduce Job to perform an incremental load into the given
* table. This
* <ul>
* <li>Inspects the table to configure a total order partitioner</li>
* <li>Uploads the partitions file to the cluster and adds it to the
* DistributedCache</li>
* <li>Sets the number of reduce tasks to match the current number of
* regions</li>
* <li>Sets the output key/value class to match HFileOutputFormat2's
* requirements</li>
* <li>Sets the reducer up to perform the appropriate sorting (either
* KeyValueSortReducer or PutSortReducer)</li>
* </ul>
* The user should be sure to set the map output value class to either
* KeyValue or Put before running this function.
*/
public static void configureIncrementalLoad(Job job, HTable table)
throws IOException {
configureIncrementalLoad(job, table, HFileOutputFormatBase.class);
}
public static void configureIncrementalLoad(Job job, HTable table,
Class<? extends OutputFormat<?, ?>> cls) throws IOException {
Configuration conf = job.getConfiguration();
job.setOutputKeyClass(ImmutableBytesWritable.class);
job.setOutputValueClass(KeyValue.class);
job.setOutputFormatClass(HFileOutputFormatBase.class);
// Based on the configured map output class, set the correct reducer to
// properly
// sort the incoming values.
// TODO it would be nice to pick one or the other of these formats.
if (KeyValue.class.equals(job.getMapOutputValueClass())) {
job.setReducerClass(KeyValueSortReducer.class);
} else if (Put.class.equals(job.getMapOutputValueClass())) {
job.setReducerClass(PutSortReducer.class);
} else if (Text.class.equals(job.getMapOutputValueClass())) {
job.setReducerClass(TextSortReducer.class);
} else {
LOG.warn("Unknown map output value type:"
+ job.getMapOutputValueClass());
}
conf.setStrings("io.serializations", conf.get("io.serializations"),
MutationSerialization.class.getName(),
ResultSerialization.class.getName(),
KeyValueSerialization.class.getName());
// Use table's region boundaries for TOP split points.
LOG.info("Looking up current regions for table "
+ Bytes.toString(table.getTableName()));
List<ImmutableBytesWritable> startKeys = getRegionStartKeys(table);
LOG.info("Configuring " + startKeys.size() + " reduce partitions "
+ "to match current region count");
job.setNumReduceTasks(startKeys.size());
configurePartitioner(job, startKeys);
// Set compression algorithms based on column families
configureCompression(table, conf);
configureBloomType(table, conf);
configureBlockSize(table, conf);
// TableMapReduceUtil.addDependencyJars(job);// 注释掉了该行
TableMapReduceUtil.initCredentials(job);
LOG.info("Incremental table " + Bytes.toString(table.getTableName())
+ " output configured.");
}
private static void configureBlockSize(HTable table, Configuration conf)
throws IOException {
StringBuilder blockSizeConfigValue = new StringBuilder();
HTableDescriptor tableDescriptor = table.getTableDescriptor();
if (tableDescriptor == null) {
// could happen with mock table instance
return;
}
Collection<HColumnDescriptor> families = tableDescriptor.getFamilies();
int i = 0;
for (HColumnDescriptor familyDescriptor : families) {
if (i++ > 0) {
blockSizeConfigValue.append('&');
}
blockSizeConfigValue.append(URLEncoder.encode(
familyDescriptor.getNameAsString(), "UTF-8"));
blockSizeConfigValue.append('=');
blockSizeConfigValue.append(URLEncoder.encode(
String.valueOf(familyDescriptor.getBlocksize()), "UTF-8"));
}
// Get rid of the last ampersand
conf.set(BLOCK_SIZE_CONF_KEY, blockSizeConfigValue.toString());
}
/**
* Run inside the task to deserialize column family to compression algorithm
* map from the configuration.
*
* Package-private for unit tests only.
*
* @return a map from column family to the name of the configured
* compression algorithm
*/
static Map<byte[], String> createFamilyCompressionMap(Configuration conf) {
return createFamilyConfValueMap(conf, COMPRESSION_CONF_KEY);
}
private static Map<byte[], String> createFamilyBloomMap(Configuration conf) {
return createFamilyConfValueMap(conf, BLOOM_TYPE_CONF_KEY);
}
private static Map<byte[], String> createFamilyBlockSizeMap(
Configuration conf) {
return createFamilyConfValueMap(conf, BLOCK_SIZE_CONF_KEY);
}
/**
* Run inside the task to deserialize column family to given conf value map.
*
* @param conf
* @param confName
* @return a map of column family to the given configuration value
*/
private static Map<byte[], String> createFamilyConfValueMap(
Configuration conf, String confName) {
Map<byte[], String> confValMap = new TreeMap<byte[], String>(
Bytes.BYTES_COMPARATOR);
String confVal = conf.get(confName, "");
for (String familyConf : confVal.split("&")) {
String[] familySplit = familyConf.split("=");
if (familySplit.length != 2) {
continue;
}
try {
confValMap
.put(URLDecoder.decode(familySplit[0], "UTF-8")
.getBytes(), URLDecoder.decode(familySplit[1],
"UTF-8"));
} catch (UnsupportedEncodingException e) {
// will not happen with UTF-8 encoding
throw new AssertionError(e);
}
}
return confValMap;
}
/**
* Configure <code>job</code> with a TotalOrderPartitioner, partitioning
* against <code>splitPoints</code>. Cleans up the partitions file after job
* exists.
*/
static void configurePartitioner(Job job,
List<ImmutableBytesWritable> splitPoints) throws IOException {
// create the partitions file
FileSystem fs = FileSystem.get(job.getConfiguration());
Path partitionsPath = new Path("/tmp", "partitions_"
+ UUID.randomUUID());
fs.makeQualified(partitionsPath);
fs.deleteOnExit(partitionsPath);
writePartitions(job.getConfiguration(), partitionsPath, splitPoints);
// configure job to use it
job.setPartitionerClass(TotalOrderPartitioner.class);
TotalOrderPartitioner.setPartitionFile(job.getConfiguration(),
partitionsPath);
}
/**
* Serialize column family to compression algorithm map to configuration.
* Invoked while configuring the MR job for incremental load.
*
* Package-private for unit tests only.
*
* @throws IOException
* on failure to read column family descriptors
*/
@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE")
static void configureCompression(HTable table, Configuration conf)
throws IOException {
StringBuilder compressionConfigValue = new StringBuilder();
HTableDescriptor tableDescriptor = table.getTableDescriptor();
if (tableDescriptor == null) {
// could happen with mock table instance
return;
}
Collection<HColumnDescriptor> families = tableDescriptor.getFamilies();
int i = 0;
for (HColumnDescriptor familyDescriptor : families) {
if (i++ > 0) {
compressionConfigValue.append('&');
}
compressionConfigValue.append(URLEncoder.encode(
familyDescriptor.getNameAsString(), "UTF-8"));
compressionConfigValue.append('=');
compressionConfigValue.append(URLEncoder.encode(familyDescriptor
.getCompression().getName(), "UTF-8"));
}
// Get rid of the last ampersand
conf.set(COMPRESSION_CONF_KEY, compressionConfigValue.toString());
}
/**
* Serialize column family to bloom type map to configuration. Invoked while
* configuring the MR job for incremental load.
*
* @throws IOException
* on failure to read column family descriptors
*/
static void configureBloomType(HTable table, Configuration conf)
throws IOException {
HTableDescriptor tableDescriptor = table.getTableDescriptor();
if (tableDescriptor == null) {
// could happen with mock table instance
return;
}
StringBuilder bloomTypeConfigValue = new StringBuilder();
Collection<HColumnDescriptor> families = tableDescriptor.getFamilies();
int i = 0;
for (HColumnDescriptor familyDescriptor : families) {
if (i++ > 0) {
bloomTypeConfigValue.append('&');
}
bloomTypeConfigValue.append(URLEncoder.encode(
familyDescriptor.getNameAsString(), "UTF-8"));
bloomTypeConfigValue.append('=');
String bloomType = familyDescriptor.getBloomFilterType().toString();
if (bloomType == null) {
bloomType = HColumnDescriptor.DEFAULT_BLOOMFILTER;
}
bloomTypeConfigValue.append(URLEncoder.encode(bloomType, "UTF-8"));
}
conf.set(BLOOM_TYPE_CONF_KEY, bloomTypeConfigValue.toString());
}
// 新增了ignore()
@SuppressWarnings("deprecation")
public boolean ignore(KeyValue kv) {
boolean ignore = Bytes.toString(kv.getValue()).indexOf("Del") >= 0;
return ignore;
}
// 新增了getDeleteRowKeyPath()
public static Path getDeleteRowKeyPath(Path outputPath) {
return new Path(outputPath + HFileOutputFormatBase._deleteRowkey);
}
// 新增了getDeleteRowKeyFile()
public static Path getDeleteRowKeyFile(Path outputPath) {
return new Path(getDeleteRowKeyPath(outputPath) + "/"
+ UUID.randomUUID().toString());
}
}
data.txt文件的内容如下：
6222020405006,typeA,100000,201408081225,2000 6222020405006,typeA,100000,201408112351,1000 6222020405006,typeA,100000,201408140739,4000 6222020405008,typeB,50000,201408150932,5000 6222020405009,typeC,30000,201408181212,10000
在这里解说一下：HFileOutputFormatBase.java是重写了hbase-server-0.96.2-hadoop2.jar里面的HFileOutputFormat2.java文件，在File2HFile2HBase.java 里方法 getJob()里return前一行：
HFileOutputFormatBase.configureIncrementalLoad(job, htable, HFileOutputFormatBase.class);
刚开始写了HFileOutputFormat.configureIncrementalLoad(job, htable);但是老是报如下错误：
2014-08-26 22:31:47,183 INFO [main] example.File2HFile2HBase (File2HFile2HBase.java:run(61)) - Usage command args: [hdfs://master129:9000/test/input/data.txt, hdfs://master129:9000/test/output] SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/D:/app/lib/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:/app/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. 2014-08-26 22:31:51,256 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT 2014-08-26 22:31:51,258 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:host.name=LiuYQ-PC 2014-08-26 22:31:51,258 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.version=1.6.0_45 2014-08-26 22:31:51,258 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.vendor=Sun Microsystems Inc. 2014-08-26 22:31:51,261 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.home=C:\Program Files\Java\jdk1.6.0_45\jre 2014-08-26 22:31:51,261 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.class.path=E:\workspace\.metadata\.plugins\org.apache.hadoop.eclipse\hadoop-conf-2965312243669964400;E:\workspace\hadoop_study\bin;D:\app\lib\activation-1.1.jar;D:\app\lib\annotations-api.jar;D:\app\lib\aopalliance-1.0.jar;D:\app\lib\asm-3.1.jar;D:\app\lib\asm-3.2.jar;D:\app\lib\avro-1.7.4.jar;D:\app\lib\catalina.jar;D:\app\lib\catalina-ant.jar;D:\app\lib\catalina-ha.jar;D:\app\lib\catalina-tribes.jar;D:\app\lib\commons-beanutils-1.7.0.jar;D:\app\lib\commons-beanutils-core-1.8.0.jar;D:\app\lib\commons-cli-1.2.jar;D:\app\lib\commons-codec-1.4.jar;D:\app\lib\commons-codec-1.7.jar;D:\app\lib\commons-collections-3.2.1.jar;D:\app\lib\commons-compress-1.4.1.jar;D:\app\lib\commons-configuration-1.6.jar;D:\app\lib\commons-daemon-1.0.13.jar;D:\app\lib\commons-digester-1.8.jar;D:\app\lib\commons-el-1.0.jar;D:\app\lib\commons-httpclient-3.1.jar;D:\app\lib\commons-io-2.1.jar;D:\app\lib\commons-io-2.4.jar;D:\app\lib\commons-lang-2.5.jar;D:\app\lib\commons-lang-2.6.jar;D:\app\lib\commons-logging-1.1.1.jar;D:\app\lib\commons-math-2.1.jar;D:\app\lib\commons-net-3.1.jar;D:\app\lib\ecj-3.7.2.jar;D:\app\lib\el-api.jar;D:\app\lib\findbugs-annotations-1.3.9-1.jar;D:\app\lib\gmbal-api-only-3.0.0-b023.jar;D:\app\lib\grizzly-framework-2.1.2.jar;D:\app\lib\grizzly-http-2.1.2.jar;D:\app\lib\grizzly-http-server-2.1.2.jar;D:\app\lib\grizzly-http-servlet-2.1.2.jar;D:\app\lib\grizzly-rcm-2.1.2.jar;D:\app\lib\guava-11.0.2.jar;D:\app\lib\guava-12.0.1.jar;D:\app\lib\guice-3.0.jar;D:\app\lib\guice-servlet-3.0.jar;D:\app\lib\hadoop-annotations-2.2.0.jar;D:\app\lib\hadoop-archives-2.2.0.jar;D:\app\lib\hadoop-auth-2.2.0.jar;D:\app\lib\hadoop-client-2.2.0.jar;D:\app\lib\hadoop-common-2.2.0.jar;D:\app\lib\hadoop-common-2.2.0-tests.jar;D:\app\lib\hadoop-datajoin-2.2.0.jar;D:\app\lib\hadoop-distcp-2.2.0.jar;D:\app\lib\hadoop-extras-2.2.0.jar;D:\app\lib\hadoop-gridmix-2.2.0.jar;D:\app\lib\hadoop-hdfs-2.2.0.jar;D:\app\lib\hadoop-hdfs-2.2.0-tests.jar;D:\app\lib\hadoop-hdfs-nfs-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-app-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-common-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-core-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-hs-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-hs-plugins-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-jobclient-2.2.0.jar;D:\app\lib\hadoop-mapreduce-client-jobclient-2.2.0-tests.jar;D:\app\lib\hadoop-mapreduce-client-shuffle-2.2.0.jar;D:\app\lib\hadoop-mapreduce-examples-2.2.0.jar;D:\app\lib\hadoop-nfs-2.2.0.jar;D:\app\lib\hadoop-rumen-2.2.0.jar;D:\app\lib\hadoop-streaming-2.2.0.jar;D:\app\lib\hadoop-yarn-api-2.2.0.jar;D:\app\lib\hadoop-yarn-applications-distributedshell-2.2.0.jar;D:\app\lib\hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar;D:\app\lib\hadoop-yarn-client-2.2.0.jar;D:\app\lib\hadoop-yarn-common-2.2.0.jar;D:\app\lib\hadoop-yarn-server-common-2.2.0.jar;D:\app\lib\hadoop-yarn-server-nodemanager-2.2.0.jar;D:\app\lib\hadoop-yarn-server-resourcemanager-2.2.0.jar;D:\app\lib\hadoop-yarn-server-tests-2.2.0.jar;D:\app\lib\hadoop-yarn-server-tests-2.2.0-tests.jar;D:\app\lib\hadoop-yarn-server-web-proxy-2.2.0.jar;D:\app\lib\hadoop-yarn-site-2.2.0.jar;D:\app\lib\hamcrest-core-1.1.jar;D:\app\lib\hamcrest-core-1.3.jar;D:\app\lib\hbase-client-0.96.2-hadoop2.jar;D:\app\lib\hbase-common-0.96.2-hadoop2.jar;D:\app\lib\hbase-common-0.96.2-hadoop2-tests.jar;D:\app\lib\hbase-examples-0.96.2-hadoop2.jar;D:\app\lib\hbase-hadoop2-compat-0.96.2-hadoop2.jar;D:\app\lib\hbase-hadoop-compat-0.96.2-hadoop2.jar;D:\app\lib\hbase-it-0.96.2-hadoop2.jar;D:\app\lib\hbase-it-0.96.2-hadoop2-tests.jar;D:\app\lib\hbase-prefix-tree-0.96.2-hadoop2.jar;D:\app\lib\hbase-protocol-0.96.2-hadoop2.jar;D:\app\lib\hbase-server-0.96.2-hadoop2.jar;D:\app\lib\hbase-server-0.96.2-hadoop2-tests.jar;D:\app\lib\hbase-shell-0.96.2-hadoop2.jar;D:\app\lib\hbase-testing-util-0.96.2-hadoop2.jar;D:\app\lib\hbase-thrift-0.96.2-hadoop2.jar;D:\app\lib\hsqldb-2.0.0.jar;D:\app\lib\htrace-core-2.04.jar;D:\app\lib\httpclient-4.1.3.jar;D:\app\lib\httpcore-4.1.3.jar;D:\app\lib\jackson-core-asl-1.8.8.jar;D:\app\lib\jackson-jaxrs-1.8.8.jar;D:\app\lib\jackson-mapper-asl-1.8.8.jar;D:\app\lib\jackson-xc-1.8.8.jar;D:\app\lib\jamon-runtime-2.3.1.jar;D:\app\lib\jasper.jar;D:\app\lib\jasper-compiler-5.5.23.jar;D:\app\lib\jasper-el.jar;D:\app\lib\jasper-runtime-5.5.23.jar;D:\app\lib\javax.inject-1.jar;D:\app\lib\javax.servlet-3.1.jar;D:\app\lib\javax.servlet-api-3.0.1.jar;D:\app\lib\jaxb-api-2.2.2.jar;D:\app\lib\jaxb-impl-2.2.3-1.jar;D:\app\lib\jersey-client-1.9.jar;D:\app\lib\jersey-core-1.8.jar;D:\app\lib\jersey-core-1.9.jar;D:\app\lib\jersey-grizzly2-1.9.jar;D:\app\lib\jersey-guice-1.9.jar;D:\app\lib\jersey-json-1.8.jar;D:\app\lib\jersey-json-1.9.jar;D:\app\lib\jersey-server-1.8.jar;D:\app\lib\jersey-server-1.9.jar;D:\app\lib\jersey-test-framework-core-1.9.jar;D:\app\lib\jersey-test-framework-grizzly2-1.9.jar;D:\app\lib\jets3t-0.6.1.jar;D:\app\lib\jettison-1.1.jar;D:\app\lib\jettison-1.3.1.jar;D:\app\lib\jetty-6.1.26.jar;D:\app\lib\jetty-sslengine-6.1.26.jar;D:\app\lib\jetty-util-6.1.26.jar;D:\app\lib\jruby-complete-1.6.8.jar;D:\app\lib\jsch-0.1.42.jar;D:\app\lib\jsp-2.1-6.1.14.jar;D:\app\lib\jsp-api.jar;D:\app\lib\jsp-api-2.1.jar;D:\app\lib\jsp-api-2.1-6.1.14.jar;D:\app\lib\jsr305-1.3.9.jar;D:\app\lib\junit-4.8.2.jar;D:\app\lib\junit-4.10.jar;D:\app\lib\junit-4.11.jar;D:\app\lib\libthrift-0.9.0.jar;D:\app\lib\log4j-1.2.17.jar;D:\app\lib\management-api-3.0.0-b012.jar;D:\app\lib\metrics-core-2.1.2.jar;D:\app\lib\mockito-all-1.8.5.jar;D:\app\lib\netty-3.6.2.Final.jar;D:\app\lib\netty-3.6.6.Final.jar;D:\app\lib\paranamer-2.3.jar;D:\app\lib\protobuf-java-2.5.0.jar;D:\app\lib\servlet-api.jar;D:\app\lib\servlet-api-2.5.jar;D:\app\lib\servlet-api-2.5-6.1.14.jar;D:\app\lib\slf4j-api-1.6.4.jar;D:\app\lib\slf4j-api-1.7.5.jar;D:\app\lib\slf4j-log4j12-1.6.4.jar;D:\app\lib\slf4j-log4j12-1.7.5.jar;D:\app\lib\snappy-java-1.0.4.1.jar;D:\app\lib\stax-api-1.0.1.jar;D:\app\lib\tomcat-coyote.jar;D:\app\lib\tomcat-dbcp.jar;D:\app\lib\tomcat-i18n-es.jar;D:\app\lib\tomcat-i18n-fr.jar;D:\app\lib\tomcat-i18n-ja.jar;D:\app\lib\xmlenc-0.52.jar;D:\app\lib\xz-1.0.jar;D:\app\lib\zookeeper-3.4.5.jar 2014-08-26 22:31:51,261 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.library.path=C:\Program Files\Java\jdk1.6.0_45\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files (x86)/Java/jdk1.6.0_35/bin/../jre/bin/client;C:/Program Files (x86)/Java/jdk1.6.0_35/bin/../jre/bin;C:/Program Files (x86)/Java/jdk1.6.0_35/bin/../jre/lib/i386;D:\app\hadoop-2.2.0\bin;C:\Program Files (x86)\Java\jdk1.6.0_35\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;D:\app\Oracle11g\product\11.1.0\db_1\bin;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;D:\Program Files\TortoiseSVN\bin;D:\Program Files\MySQL\MySQL Server 5.5\bin;C:\Program Files (x86)\Intel\OpenCL SDK\3.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\3.0\bin\x64;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;D:\Program Files\SSH Communications Security\SSH Secure Shell;.;;D:\app\eclipse;;. 2014-08-26 22:31:51,261 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.io.tmpdir=C:\Users\LiuYQ\AppData\Local\Temp\ 2014-08-26 22:31:51,261 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.compiler=<NA> 2014-08-26 22:31:51,263 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.name=Windows 7 2014-08-26 22:31:51,263 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.arch=amd64 2014-08-26 22:31:51,264 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.version=6.1 2014-08-26 22:31:51,264 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.name=LiuYQ 2014-08-26 22:31:51,264 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.home=C:\Users\LiuYQ 2014-08-26 22:31:51,264 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.dir=E:\workspace\hadoop_study 2014-08-26 22:31:51,272 INFO [main] zookeeper.ZooKeeper (ZooKeeper.java:<init>(438)) - Initiating client connection, connectString=slave130:2181,master129:2181,slave132:2181,slave131:2181 sessionTimeout=180000 watcher=hconnection-0x76b20352, quorum=slave130:2181,master129:2181,slave132:2181,slave131:2181, baseZNode=/hbase 2014-08-26 22:31:51,389 INFO [main] zookeeper.RecoverableZooKeeper (RecoverableZooKeeper.java:<init>(120)) - Process identifier=hconnection-0x76b20352 connecting to ZooKeeper ensemble=slave130:2181,master129:2181,slave132:2181,slave131:2181 2014-08-26 22:31:51,404 INFO [main-SendThread(master129:2181)] zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(966)) - Opening socket connection to server master129/192.168.24.129:2181. Will not attempt to authenticate using SASL (无法定位登录配置) 2014-08-26 22:31:51,419 INFO [main-SendThread(master129:2181)] zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(849)) - Socket connection established to master129/192.168.24.129:2181, initiating session 2014-08-26 22:31:51,464 INFO [main-SendThread(master129:2181)] zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1207)) - Session establishment complete on server master129/192.168.24.129:2181, sessionid = 0x48129e3b750006, negotiated timeout = 150000 2014-08-26 22:31:53,018 INFO [main] mapreduce.HFileOutputFormat2 (HFileOutputFormat2.java:configureIncrementalLoad(366)) - Looking up current regions for table testtable1 2014-08-26 22:31:53,046 INFO [main] mapreduce.HFileOutputFormat2 (HFileOutputFormat2.java:configureIncrementalLoad(368)) - Configuring 1 reduce partitions to match current region count 2014-08-26 22:31:53,164 INFO [main] mapreduce.HFileOutputFormat2 (HFileOutputFormat2.java:writePartitions(287)) - Writing partition information to /tmp/partitions_8f008fe0-9170-48ac-940a-83c2813f1378 2014-08-26 22:31:53,356 WARN [main] zlib.ZlibFactory (ZlibFactory.java:<clinit>(50)) - Failed to load/initialize native-zlib library 2014-08-26 22:31:53,359 INFO [main] compress.CodecPool (CodecPool.java:getCompressor(150)) - Got brand-new compressor [.deflate] 2014-08-26 22:31:53,904 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - hadoop.native.lib is deprecated. Instead, use io.native.lib.available 2014-08-26 22:31:53,964 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - hadoop.native.lib is deprecated. Instead, use io.native.lib.available 2014-08-26 22:31:54,006 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - hadoop.native.lib is deprecated. Instead, use io.native.lib.available 2014-08-26 22:31:54,059 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - hadoop.native.lib is deprecated. Instead, use io.native.lib.available 2014-08-26 22:31:54,110 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - hadoop.native.lib is deprecated. Instead, use io.native.lib.available 2014-08-26 22:31:54,310 INFO [main] mapreduce.HFileOutputFormat2 (HFileOutputFormat2.java:configureIncrementalLoad(380)) - Incremental table testtable1 output configured. 2014-08-26 22:31:54,362 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(840)) - session.id is deprecated. Instead, use dfs.metrics.session-id 2014-08-26 22:31:54,365 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(76)) - Initializing JVM Metrics with processName=JobTracker, sessionId= 2014-08-26 22:31:54,998 WARN [main] mapreduce.JobSubmitter (JobSubmitter.java:copyAndConfigureFiles(149)) - Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this. 2014-08-26 22:31:55,083 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(439)) - Cleaning up the staging area file:/tmp/hadoop-LiuYQ/mapred/staging/hadoop5469487/.staging/job_local5469487_0001 java.lang.IllegalArgumentException: Pathname /D:/app/lib/hadoop-mapreduce-client-core-2.2.0.jar from hdfs://master129:9000/D:/app/lib/hadoop-mapreduce-client-core-2.2.0.jar is not a valid DFS filename. at org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:184) at org.apache.hadoop.hdfs.DistributedFileSystem.access$000(DistributedFileSystem.java:92) at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1106) at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1102) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1102) at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.getFileStatus(ClientDistributedCacheManager.java:288) at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.getFileStatus(ClientDistributedCacheManager.java:224) at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineTimestamps(ClientDistributedCacheManager.java:93) at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineTimestampsAndCacheVisibilities(ClientDistributedCacheManager.java:57) at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:264) at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:300) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:387) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1268) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1265) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1265) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1286) at com.lyq.study.example.File2HFile2HBase$1.run(File2HFile2HBase.java:76) at com.lyq.study.example.File2HFile2HBase$1.run(File2HFile2HBase.java:1) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:337) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1471) at com.lyq.study.example.File2HFile2HBase.run(File2HFile2HBase.java:65) at com.lyq.study.example.File2HFile2HBase.main(File2HFile2HBase.java:135)
最终重写了HFileOutputFormat2 为HFileOutputFormatBase，使用HFileOutputFormatBase，至此成功运行。
附件是
File2HFile2HBase.ava
HFileOutputFormatBase.java
data.txt
和源码HFileOutputFormat2.java
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赠送jar包：hbase-hadoop2-compat-1.1.3.jar； 赠送原API文档：hbase-hadoop2-compat-1.1.3-javadoc.jar； 赠送源代码：hbase-hadoop2-compat-1.1.3-sources.jar； 赠送Maven依赖信息文件：hbase-hadoop2-compat-...
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大数据集群 Hadoop HBase Hive Sqoop 集群环境安装配置及使用文档 在本文档中，我们将详细介绍如何搭建一个大数据集群环境，包括 Hadoop、HBase、Hive 和 Sqoop 的安装配置及使用。该文档将分为四部分：Hadoop 集群...
Hadoop则是Apache软件基金会的一个开源项目，主要由HDFS（Hadoop Distributed File System）和MapReduce两部分组成。HDFS为海量数据提供了分布式存储，而MapReduce则负责并行处理这些数据。HBase与Hadoop的结合，...
2. **hadoop-mapreduce-client-core-2.0.5-alpha.jar**：这个JAR文件包含了Hadoop MapReduce客户端的核心组件。MapReduce框架由两个主要部分组成：客户端和服务器端。客户端用于提交作业，监视其状态，以及接收结果...
Hadoop 和 HBase 常用 shell 命令 在大数据处理中，Hadoop 和 HBase 是两个非常重要的组件。Hadoop 是一个分布式计算框架，用于处理大规模数据，而 HBase 是一个基于 Hadoop 的分布式数据库，用于存储和处理大规模...
它由两个主要组件组成：HDFS（Hadoop Distributed File System）和MapReduce。 - HDFS是一个分布式文件系统，它允许在集群中的多台服务器上存储和处理大量数据，提供高容错性和高吞吐量的数据访问。 - MapReduce是...
2. **下载HBase**：获取与Hadoop版本兼容的HBase版本。 3. **配置HBase**：修改`hbase-site.xml`，设置HBase的Zookeeper地址、HDFS路径等。 4. **启动HBase**：启动Master和RegionServer，确保HBase集群运行。 5. **...
《HBase 0.98.13-hadoop2 安装与学习指南》 HBase，全称为Hadoop Database，是一款基于Google Bigtable理念设计的开源非关系型分布式数据库（NoSQL）。作为Apache Hadoop生态系统的一员，它为大数据处理提供了高效...
- Hadoop2.X可以支持HBase 0.92.x至1.0.x版本之间的某些版本，但不是全部。比如，Hadoop2.2版本可以和HBase 0.96版本兼容，但可能需要补丁来解决一些兼容性小问题。 - 对于Hive，Hadoop2.X可以支持从0.10.0版本到...
标题 "Hadoop+HBase+Java API" 涉及到三个主要的开源技术：Hadoop、HBase以及Java API，这些都是大数据处理和存储领域的关键组件。以下是对这些技术及其结合使用的详细介绍： **Hadoop** 是一个分布式计算框架，由...
Hadoop的核心组件包括HDFS（Hadoop Distributed File System）和MapReduce，分别负责数据存储和并行计算。而HBase是一款基于Hadoop的分布式、高性能、列式存储的NoSQL数据库，适用于实时查询和分析大规模数据。 1. ...
【标题】"hbase hadoop chm java 帮助文档"揭示了这是一份针对Java程序员在Hadoop和HBase开发中使用的CHM（Windows帮助文档）工具集。CHM文件是一种常见的技术文档格式，它将多个HTML页面、图像和其他资源打包成一个...