方法 1: Restoring HBase data by importing dump files from HDFS
The HBase Import utility is used to load data that has been exported by the Export utility into an existing HBase table. It is the process to restore data from the Export utility backup solution.
Note :
1. 导入的元数据及数据必须与之前导出的表一一对应（相同的表和相同的列簇）
2. We create the target table what it exports. The table must have all the column families that exist in the dump files; without that, the import job will fail with a NoSuchColumnFamilyException error message.
landen@Master:~/UntarFile/hbase-0.94.12$ bin/hbase org.apache.hadoop.hbase.mapreduce.Import backupIPInfo /backup/HBaseExport
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.zookeeper.ZooKeeper, using jar /home/landen/UntarFile/hbase-0.94.12/lib/zookeeper-3.4.5.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class com.google.protobuf.Message, using jar /home/landen/UntarFile/hbase-0.94.12/lib/protobuf-java-2.4.0a.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class com.google.common.collect.ImmutableSet, using jar /home/landen/UntarFile/hbase-0.94.12/lib/guava-11.0.2.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.hbase.util.Bytes, using jar /home/landen/UntarFile/hbase-0.94.12/hbase-0.94.12.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.hbase.io.ImmutableBytesWritable, using jar /home/landen/UntarFile/hbase-0.94.12/hbase-0.94.12.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.io.Writable, using jar /home/landen/UntarFile/hbase-0.94.12/lib/hadoop-core-1.0.4.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat, using jar /home/landen/UntarFile/hbase-0.94.12/lib/hadoop-core-1.0.4.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.hbase.io.ImmutableBytesWritable, using jar /home/landen/UntarFile/hbase-0.94.12/hbase-0.94.12.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.io.Writable, using jar /home/landen/UntarFile/hbase-0.94.12/lib/hadoop-core-1.0.4.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.hbase.mapreduce.TableOutputFormat, using jar /home/landen/UntarFile/hbase-0.94.12/hbase-0.94.12.jar
13/12/11 16:08:04 DEBUG mapreduce.TableMapReduceUtil: For class org.apache.hadoop.mapreduce.lib.partition.HashPartitioner, using jar /home/landen/UntarFile/hbase-0.94.12/lib/hadoop-core-1.0.4.jar
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:host.name=Master
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0_17
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.home=/home/landen/UntarFile/jdk1.7.0_17/jre
...............................................................
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.library.path=/home/landen/UntarFile/hadoop-1.0.4/libexec/../lib/native/Linux-i386-32:/home/landen/UntarFile/hbase-0.94.12/lib/native/Linux-i386-32
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA>
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:os.name=Linux
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:os.arch=i386
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:os.version=3.2.0-24-generic-pae
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:user.name=landen
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:user.home=/home/landen
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Client environment:user.dir=/home/landen/UntarFile/hbase-0.94.12
13/12/11 16:08:07 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=Slave1:2222,Master:2222,Slave2:2222 sessionTimeout=180000 watcher=hconnection
13/12/11 16:08:07 INFO zookeeper.ClientCnxn: Opening socket connection to server Master/10.21.244.79:2222. Will not attempt to authenticate using SASL (unknown error)
13/12/11 16:08:07 INFO zookeeper.ClientCnxn: Socket connection established to Master/10.21.244.79:2222, initiating session
13/12/11 16:08:07 INFO zookeeper.RecoverableZooKeeper: The identifier of this process is 13249@Master
13/12/11 16:08:07 INFO zookeeper.ClientCnxn: Session establishment complete on server Master/10.21.244.79:2222, sessionid = 0x42e05be8c8000c, negotiated timeout = 180000
13/12/11 16:08:07 DEBUG client.HConnectionManager$HConnectionImplementation: Looked up root region location, connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@1ec068c; serverName=Slave1,60020,1386743579352
13/12/11 16:08:07 DEBUG client.HConnectionManager$HConnectionImplementation: Cached location for .META.,,1.1028785192 is Slave1:60020
13/12/11 16:08:08 DEBUG client.MetaScanner: Scanning .META. starting at row=backupIPInfo,,00000000000000 for max=10 rows using org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@1ec068c
13/12/11 16:08:08 DEBUG client.HConnectionManager$HConnectionImplementation: Cached location for backupIPInfo,,1386747966286.a32b9be7a7aaa44b2c35e1d42116c6ee. is Slave2:60020
13/12/11 16:08:08 INFO mapreduce.TableOutputFormat: Created table instance for backupIPInfo
13/12/11 16:08:08 INFO input.FileInputFormat: Total input paths to process : 1
13/12/11 16:08:08 INFO mapred.JobClient: Running job: job_201312111429_0006
13/12/11 16:08:09 INFO mapred.JobClient: map 0% reduce 0%
13/12/11 16:08:25 INFO mapred.JobClient: map 100% reduce 0%
13/12/11 16:08:30 INFO mapred.JobClient: Job complete: job_201312111429_0006
13/12/11 16:08:30 INFO mapred.JobClient: Counters: 18
13/12/11 16:08:30 INFO mapred.JobClient: Job Counters
13/12/11 16:08:30 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=12039
13/12/11 16:08:30 INFO mapred.JobClient: Total time spent by all reduces waiting after reserving slots (ms)=0
13/12/11 16:08:30 INFO mapred.JobClient: Total time spent by all maps waiting after reserving slots (ms)=0
13/12/11 16:08:30 INFO mapred.JobClient: Launched map tasks=1
13/12/11 16:08:30 INFO mapred.JobClient: Data-local map tasks=1
13/12/11 16:08:30 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=0
13/12/11 16:08:30 INFO mapred.JobClient: File Output Format Counters
13/12/11 16:08:30 INFO mapred.JobClient: Bytes Written=0
13/12/11 16:08:30 INFO mapred.JobClient: FileSystemCounters
13/12/11 16:08:30 INFO mapred.JobClient: HDFS_BYTES_READ=886
13/12/11 16:08:30 INFO mapred.JobClient: FILE_BYTES_WRITTEN=34871
13/12/11 16:08:30 INFO mapred.JobClient: File Input Format Counters
13/12/11 16:08:30 INFO mapred.JobClient: Bytes Read=771
13/12/11 16:08:30 INFO mapred.JobClient: Map-Reduce Framework
13/12/11 16:08:30 INFO mapred.JobClient: Map input records=3
13/12/11 16:08:30 INFO mapred.JobClient: Physical memory (bytes) snapshot=82030592
13/12/11 16:08:30 INFO mapred.JobClient: Spilled Records=0
13/12/11 16:08:30 INFO mapred.JobClient: CPU time spent (ms)=160
13/12/11 16:08:30 INFO mapred.JobClient: Total committed heap usage (bytes)=55443456
13/12/11 16:08:30 INFO mapred.JobClient: Virtual memory (bytes) snapshot=395833344
13/12/11 16:08:30 INFO mapred.JobClient: Map output records=3
13/12/11 16:08:30 INFO mapred.JobClient: SPLIT_RAW_BYTES=115
