Burrows-Wheeler Aligner (BWA),一种将短核苷酸序列映射到参考基因组的生物信息学工具(算法)。我尝试使用 Hadoop Streaming 运行 BWA,但出现错误。
命令:
hadoop/bin/hadoop jar $HADOOP_HOME/contrib/streaming/hadoop-streaming-1.1.1.jar -input /user/hduser/bwainput/chr21.fa -output /user/hduser/bwa_output17 -mapper "/home/hduser/Desktop/bwa-0.7.5a/bwa index /user/hduser/bwainput/chr21.fa" -file /home/hduser/Desktop/bwa_input/chr21.fa
错误信息:
INFO streaming.StreamJob: Tracking URL: /ubuntu:50030/jobdetails.jsp?jobid=job_201401230236_0007
ERROR streaming.StreamJob: Job not successful.
Error: # of failed Map Tasks exceeded allowed limit. FailedCount:1
INFO streaming.StreamJob: killJob...
请建议如何解决这个问题?谢谢你的帮助。