配置完成nutch容易出现的错误

1.1.2   运行crawl报错Job failed

Exception in thread "main" java.io.IOException: Job failed!

        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:604)

        at org.apache.nutch.indexer.DeleteDuplicates.dedup(DeleteDuplicates.java

:439)

        at org.apache.nutch.crawl.Crawl.main(Crawl.java:135)

问题解决：

此多为crawl-urlfilter.txt：MY.DOMAIN.NAME的修改不正确

1.1.3   又一个Job failed

Exception in thread "main" java.io.IOException: Job failed!

        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:604)

        at org.apache.nutch.indexer.DeleteDuplicates.dedup(DeleteDuplicates.java

:439)

        at org.apache.nutch.crawl.Crawl.main(Crawl.java:135)

问题解决：

多为crawl-urlfilter.txt的MY.DOMAIN.NAME修改不正确

1.1.4   Eclipse中运行nutch：Job failed

Exception in thread "main" java.io.IOException: Job failed!

       at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:604)

       at org.apache.nutch.crawl.Injector.inject(Injector.java:162)

       at org.apache.nutch.crawl.Crawl.main(Crawl.java:115)

问题解决：

此问题是eclipse的java版本设置问题，解决方法：

如原来使用java1.4，需要改为1.6

project-》properties-》java compiler

右 jdk compliance

compiler compliance level：改为6.0