Version 6 (modified by waue, 15 years ago) (diff) |
---|
- FuseAlert.java 100% finished and testing finished
注意要點:
- the output is difference between Map and Reduce class !
// set Map output key and value class job.setMapOutputKeyClass(Text.class); job.setMapOutputValueClass(LongWritable.class); // set Reduce output key and value class job.setOutputKeyClass(Text.class); job.setOutputValueClass(Text.class);
- 由於時間的位元長度過長,故20090101595959 已經超過 intWritable 的定址範圍
改為 0101595959 用 longWritable 宣告
- 在map 與 reduce class內宣告重要參數,需用全名,如 int 改為 Integer 較佳
- 也許因為key 過長,因此似乎影響到效能,此job 需run完需20secs