| | 1 | [[PageOutline]] |
| | 2 | |
| | 3 | = 實作九 Lab9 = |
| | 4 | |
| | 5 | * 首先準備輸入，包含兩部份：(1) 供 Velvet 計算的 *.fa 檔案，這裡為了方便示範起見，採用 test_long.fa 當範本，並複製 99 份不同檔名，當輸入 (2) 供 Mapper 運算的輸入檔案（內含 HDFS 的檔名路徑） |
| | 6 | {{{ |
| | 7 | ~$ cp /usr/share/doc/velvet-example/examples/data/test_long.fa.gz . |
| | 8 | ~$ gunzip test_long.fa.gz |
| | 9 | ~$ for ((i=1;i<100;i++)); do hadoop fs -put test_long.fa sample-$i.fa; done |
| | 10 | ~$ for ((i=1;i<20;i++)); do echo /user/h998/sample-$i.fa; done > sample-01.txt |
| | 11 | ~$ for ((i=20;i<40;i++)); do echo /user/h998/sample-$i.fa; done > sample-02.txt |
| | 12 | ~$ for ((i=40;i<60;i++)); do echo /user/h998/sample-$i.fa; done > sample-03.txt |
| | 13 | ~$ for ((i=60;i<80;i++)); do echo /user/h998/sample-$i.fa; done > sample-04.txt |
| | 14 | ~$ for ((i=80;i<100;i++)); do echo /user/h998/sample-$i.fa; done > sample-05.txt |
| | 15 | ~$ hadoop fs -mkdir lab9_input |
| | 16 | ~$ hadoop fs -put sample-0* lab9_input |
| | 17 | }}} |
