hdfs - Only getting HDFS_WRITE operation in the logs running hadoop cluster over Amazon EMR while there should be HDFS_READ operations as well -


i trying spin 8 node hadoop cluster on amazon emr. have configuration set as:

[   {     "classification": "hadoop-log4j",     "properties": {     "log4j.logger.org.apache.hadoop.hdfs": "debug"     }   } ]

on local cluster above configuration, see both hdfs_read , hdfs_write operations in datanode logs, running on emr hdfs_write operations.

does know why emr not generating hdfs_read operations? not using amazon s3 storage backing, using hdfs hdfs:/ path-prefix


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