|   | 17 | == 執行 == | 
                  
                          |   | 18 |  | 
                  
                          |   | 19 | === 上傳urls === | 
                  
                          |   | 20 |  * bin/hadoop dfs -put urls urls | 
                  
                          |   | 21 | {{{ | 
                  
                          |   | 22 | log4j:ERROR setFile(null,true) call failed. | 
                  
                          |   | 23 | java.io.FileNotFoundException: /tmp/NutchEZ/logs/hadoop.log (Permission denied) | 
                  
                          |   | 24 | ...something message... | 
                  
                          |   | 25 | log4j:ERROR Either File or DatePattern options are not set for appender [DRFA]. | 
                  
                          |   | 26 | put: org.apache.hadoop.security.AccessControlException: Permission denied: user=nutchuser, access=WRITE, inode="":root:supergroup:rwxr-xr-x | 
                  
                          |   | 27 | }}} | 
                  
                          |   | 28 |  * 暫時切換至root測試 | 
                  
                          |   | 29 |  | 
                  
                          |   | 30 | === 爬網 === | 
                  
                          |   | 31 |  * bin/nutch crawl urls -dir search -threads 2 -depth 3 -topN 100000 | 
                  
                          |   | 32 |  |