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这是jackson多版本问题 , 我们需要屏蔽所有hadoop 组件中的Jackson ,修改pom文件,之后就不报异常了
<dependency><groupId>org.apache.hadoop</groupId><artifactId>hadoop-common</artifactId><version>${hadoop.version}</version><exclusions><exclusion><groupId>com.fasterxml.jackson.module</groupId><artifactId>*</artifactId></exclusion><exclusion><groupId>com.fasterxml.jackson.core</groupId><artifactId>*</artifactId></exclusion></exclusions></dependency><!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-mapreduce-client-core --><dependency><groupId>org.apache.hadoop</groupId><artifactId>hadoop-mapreduce-client-core</artifactId><version>${hadoop.version}</version><exclusions><exclusion><groupId>com.fasterxml.jackson.module</groupId><artifactId>*</artifactId></exclusion><exclusion><groupId>com.fasterxml.jackson.core</groupId><artifactId>*</artifactId></exclusion></exclusions></dependency>
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