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https://issues.apache.org/jira/browse/NUTCH-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sebastian Nagel reassigned NUTCH-2494:
--------------------------------------

    Assignee: Sebastian Nagel

> 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
>            Assignee: Sebastian Nagel
>            Priority: Major
>             Fix For: 1.15
>
>         Attachments: NUTCH-2494.patch
>
>
> 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}
> 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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