MapReduce任務的等於1的號碼,我試圖按照hive- set hive.exec.reducers.max = 1;
set mapred.reduce.tasks = 1;
from flat_json
insert overwrite table aggr_pgm_measure PARTITION(dt='${START_TIME}')
reduce log_time,
r
Karmasphere Analyst分析器建議我設置一些jobconf參數,例如mapred.map.output.compression.codec = org.apache.hadoop.io.compress.LzoCodec 。但是我不知道在哪裏設置這些,我無法在Karmasphere Analyst文檔中找到它。 我試着在Access-> Configuration-> Extra S