Dear nutch programmers/users,
I wrote a java code to use nutch's crawling feature as follows.
...
String arg[] = {"seedURLs", "-threads", "5", "-depth", "3", "-topN", "10"};
try {
Crawl.main(arg);
} catch (Exception e) {
e.printStackTrace(System.out);
}
...
Then I faced 'PrivilagedActionException' error. I think its related to
the 'hadoop' component.
Please help me with the error. Here is the detailed error.
...
INFO: Injector: Converting injected urls to crawl db entries.
13/05/16 08:48:36 WARN util.NativeCodeLoader: Unable to load
native-hadoop library for your platform... using builtin-java classes
where applicable
13/05/16 08:48:36 ERROR security.UserGroupInformation:
PriviledgedActionException as:Dula cause:java.io.IOException: Failed
to set permissions of path:
\tmp\hadoop-Dula\mapred\staging\Dula-543646770\.staging to 0700
java.io.IOException: Failed to set permissions of path:
\tmp\hadoop-Dula\mapred\staging\Dula-543646770\.staging to 0700
at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:689)
at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:662)
at
org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:509)
at
org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:344)
at
org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:189)
at
org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:116)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:856)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:850)
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:1121)
at
org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:850)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:824)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1261)
at org.apache.nutch.crawl.Injector.inject(Injector.java:281)
at org.apache.nutch.crawl.Crawl.run(Crawl.java:127)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.Crawl.main(Crawl.java:55)
...
