四十二、捆绑HBase MapReduce作业

捆绑HBase MapReduce作业

HBase JAR 也可作为一些捆绑 MapReduce 作业的驱动程序。要了解捆绑的 MapReduce 作业,请运行以下命令:

$ ${HADOOP_HOME}/bin/hadoop jar ${HBASE_HOME}/hbase-mapreduce-VERSION.jar
An example program must be given as the first argument.
Valid program names are:
  copytable: Export a table from local cluster to peer cluster
  completebulkload: Complete a bulk data load.
  export: Write table data to HDFS.
  import: Import data written by Export.
  importtsv: Import data in TSV format.
  rowcounter: Count rows in HBase table

每个有效的程序名都是捆绑的 MapReduce 作业。要运行其中一个作业,请在下面的示例之后为您的命令建模。

$ ${HADOOP_HOME}/bin/hadoop jar ${HBASE_HOME}/hbase-mapreduce-VERSION.jar rowcounter myTable

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