Alluxio整合MapReduce报错 Caused by: java.io.IOException: Exceeded MAX_FAILED_UNIQUE_FETCHES; bailing-out

查看Yarn NodeManager日志,发现以下信息:

Caused by: org.apache.hadoop.util.DiskChecker$DiskErrorException: Could not find user/cache/hadoop/appcache/application_15... in any of the configured local directories

解决方法:
在yarn-site.xml 中配置yarn.nodemanager.local-dirs,对应的路径必须在hdfs-site.xml中的hadoop.tmp.dir路径下,否则yarn会报错找不到缓存文件

 
        yarn.nodemanager.local-dirs
        /home/hadoop/app/hadoop-2.6.0-cdh5.15.1/tmp/nm-local-dir
 

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