0
首先，我是一個Nutch/Hadoop新手。我已經安裝了Cassandra。我在我的EMR集羣的主節點上安裝了Nutch。當我嘗試使用下面的命令來執行抓取：Nutch - 獲取錯誤：未設置JAVA_HOME。當試圖抓取
sudo bin/crawl crawl urls -dir crawl -depth 3 -topN 5
我得到
Error: JAVA_HOME is not set.
如果我沒有「須藤」我得到運行命令：
Injector: starting at 2014-07-16 02:12:24
Injector: crawlDb: urls/crawldb
Injector: urlDir: crawl
Injector: Converting injected urls to crawl db entries.
Injector: org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: file:/home/hadoop/apache-nutch-1.8/runtime/local/crawl
at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:197)
at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:208)
at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:1081)
at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1073)
at org.apache.hadoop.mapred.JobClient.access$700(JobClient.java:179)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:983)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1353)
at org.apache.nutch.crawl.Injector.inject(Injector.java:279)
at org.apache.nutch.crawl.Injector.run(Injector.java:316)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.Injector.main(Injector.java:306)
我想不通這一點。我見過這裏的其他論壇：Similar Topic
並遵循它無濟於事。我已經加入
export JAVA_HOME=/usr/lib/jvm/java-7-oracle
和
export PATH=$PATH:${JAVA_HOME}/bin
了我的〜/ .bashrc中，我使用的Linux ..
任何幫助將不勝感激！