我看到JobTracker的日誌中:hadoop-streaming:如何減少任務計算減少輸入大小?以及如何解決它?
011-11-02 10:04:09,595 WARN org.apache.hadoop.mapred.JobInProgress: No room for reduce task. Node tracker_worker1:localhost/127.0.0.1:52295 has 62087933952 bytes free; but we expect reduce input to take 176511226508
- 我想知道的Hadoop如何計算,減速器輸入採取。
- 我有兩個小工作者節點,每個70個演出,一個減速器,我該如何解決這個問題?
by increasing the number of reducers?
複製到http://stackoverflow.com/questions/7982517/hadoop-streaming-resolving-space-issues和http://stackoverflow.com/questions/7962730/hadoop-streaming-reduce-task-in-pending -state-said-no-room-for-reduce-task –