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From "Ashraful Islam (JIRA)" <j...@apache.org>
Subject [jira] [Created] (NUTCH-2494) Fetcher: java.lang.IllegalArgumentException: Wrong FS: s3
Date Thu, 11 Jan 2018 10:18:00 GMT
Ashraful Islam created NUTCH-2494:
-------------------------------------

             Summary: Fetcher: java.lang.IllegalArgumentException: Wrong FS: s3
                 Key: NUTCH-2494
                 URL: https://issues.apache.org/jira/browse/NUTCH-2494
             Project: Nutch
          Issue Type: Bug
          Components: fetcher, parser
    Affects Versions: 1.14
         Environment: * AWS EMR Cluster
* AWS S3
* Hadoop 2.2.7
            Reporter: Ashraful Islam


We are using `nutch 1.14` in AWS EMR Cluster (Hadoop 2.2.7).  trying to use S3 as main storage.


We are using the below command.

{code:bash}
bin/crawl -s s3://nutch-emr-cluster/test/crawl/urls s3://nutch-emr-cluster/test/crawl 1
{code}

Injector and Generator completed successfully without any error and data written perfectly
into S3. But in the Fetcher and Parser steps we are getting `IllegalArgumentException`

Full stacktrace 


{code:java}
18/01/11 07:16:52 ERROR fetcher.Fetcher: Fetcher: java.lang.IllegalArgumentException: Wrong
FS: s3://nutch-emr-cluster/test/crawl/segments/20180111071602/crawl_fetch, expected: hdfs://ip-172-31-26-180.eu-west-1.compute.internal:8020
	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:653)
	at org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:194)
	at org.apache.hadoop.hdfs.DistributedFileSystem.access$000(DistributedFileSystem.java:106)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1305)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1317)
	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1430)
	at org.apache.nutch.fetcher.FetcherOutputFormat.checkOutputSpecs(FetcherOutputFormat.java:55)
	at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:268)
	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:139)
	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)
	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
	at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)
	at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:575)
	at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:570)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
	at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:570)
	at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:561)
	at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:870)
	at org.apache.nutch.fetcher.Fetcher.fetch(Fetcher.java:486)
	at org.apache.nutch.fetcher.Fetcher.run(Fetcher.java:521)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.nutch.fetcher.Fetcher.main(Fetcher.java:495)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
	at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

{code}





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