Question

我需要帮助来了解mapred-site.xml上的以下配置。

<property>
      <name>mapreduce.application.classpath</name>
      <value>$PWD/mr-framework/hadoop/share/hadoop/mapreduce/*:$PWD/mr-framework/hadoop/share/hadoop/mapreduce/lib/*:$PWD/mr-framework/hadoop/share/hadoop/common/*:$PWD/mr-framework/hadoop/share/hadoop/common/lib/*:$PWD/mr-framework/hadoop/share/hadoop/yarn/*:$PWD/mr-framework/hadoop/share/hadoop/yarn/lib/*:$PWD/mr-framework/hadoop/share/hadoop/hdfs/*:$PWD/mr-framework/hadoop/share/hadoop/hdfs/lib/*:$PWD/mr-framework/hadoop/share/hadoop/tools/lib/*:/usr/hdp/${hdp.version}/hadoop/lib/hadoop-lzo-0.6.0.${hdp.version}.jar:/etc/hadoop/conf/secure</value>
    </property>

$ PWD的价值是什么（就像linux的正常pwd一样）和$ hdp.version？设置这些值的地方？

有什么想法吗？

Answer 1

$ PWD是当前工作目录的路径名，$ hdp.version是您正在使用的Hortonworks数据平台（HDP）的版本。它们设置在~/.bashrc或/etc/environment或~/.profile

中

mapred-site.xml中$ PWD的含义

1 个答案: