无法初始化集群.请检查您的配置mapreduce.framework.name和相应的服务器地址

Question

我试图运行相同的代码(org.apache.hadoop.hbase.mapreduce.Export)通过将所有所需的jar从java命令行路径(./java -cp ")添加到类路径导出类。:/npachava/*"导出测试/测试)，我得到以下错误。

Exception in thread "main" java.io.IOException: Cannot initialize Cluster. Please check your configuration for mapreduce.framework.name and the correspond server addresses.
    at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:120)
    at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:82)
    at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:75)
    at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1260)
    at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1256)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:415)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
    at org.apache.hadoop.mapreduce.Job.connect(Job.java:1256)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:1284)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1308)
    at Export.main(Export.java:194)

但是从命令提示符从hbase bin目录(./hbase org.apache.hadoop.hbase.mapreduce.Driver export test/TestTableData)运行是完美的。

我尝试将配置设置为yarn/local，但两者都不起作用

Configuration conf = HBaseConfiguration.create();
conf.set("mapreduce.framework.name", "yarn"); also with "local"

谁来帮帮我

Answer 1

add hadoop-mapreduce-client-jobclient.jar(下载前选择hadoop版本).

Answer 2

按@mentya说的解决了

如果你正在使用Maven，你也可以把它添加到你的pom.xml。

    <dependency>
        <groupId>org.apache.hadoop</groupId>
        <artifactId>hadoop-mapreduce-client-jobclient</artifactId>
        <version>${hadoop.version}</version>
        <scope>provided</scope>
    </dependency>