[HDFS-31] Hadoop distcp tool fails if file path contains special characters + & !

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 0.20.2, 0.21.0, 0.22.0
• Component/s: tools
• Assignee: Unassigned
• Reporter: Viraj Bhat
• Created: 16/Jul/08 00:58
• Updated: 07/Sep/10 23:59
• Resolved: 07/Sep/10 23:59

Description

Copying folders containing + & ! characters between hdfs (using hftp) does not work in distcp

For example:
Copying folder "string1+string2" at "namenode.address.com", hftp port myport to "/myotherhome/folder" on "myothermachine" does not work

myothermachine prompt>>> hadoop --config ~/mycluster/ distcp "hftp://namenode.address.com:myport/myhome/dir/string1+string2" /myotherhome/folder/
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Error results for hadoop job1:
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08/07/16 00:27:39 INFO tools.DistCp: srcPaths=[hftp://namenode.address.com:myport/myhome/dir/string1+string2]
08/07/16 00:27:39 INFO tools.DistCp: destPath=/myotherhome/folder/
08/07/16 00:27:41 INFO tools.DistCp: srcCount=2
08/07/16 00:27:42 INFO mapred.JobClient: Running job: job1
08/07/16 00:27:43 INFO mapred.JobClient: map 0% reduce 0%
08/07/16 00:27:58 INFO mapred.JobClient: Task Id : attempt_1_m_000000_0, Status : FAILED
java.io.IOException: Copied: 0 Skipped: 0 Failed: 1
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.close(DistCp.java:538)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:226)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2208)

08/07/16 00:28:14 INFO mapred.JobClient: Task Id : attempt_1_m_000000_1, Status : FAILED
java.io.IOException: Copied: 0 Skipped: 0 Failed: 1
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.close(DistCp.java:538)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:226)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2208)

08/07/16 00:28:28 INFO mapred.JobClient: Task Id : attempt_1_m_000000_2, Status : FAILED
java.io.IOException: Copied: 0 Skipped: 0 Failed: 1
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.close(DistCp.java:538)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:226)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2208)

With failures, global counters are inaccurate; consider running with -i
Copy failed: java.io.IOException: Job failed!
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1053)
at org.apache.hadoop.tools.DistCp.copy(DistCp.java:615)
at org.apache.hadoop.tools.DistCp.run(DistCp.java:764)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.hadoop.tools.DistCp.main(DistCp.java:784)
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Error log for the map task which failed
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INFO org.apache.hadoop.tools.DistCp: FAIL string1+string2/myjobtrackermachine.com-joblog.tar.gz : java.io.IOException: Server returned HTTP response code: 500 for URL: http://mymachine.com:myport/streamFile?filename=/myhome/dir/string1+string2/myjobtrackermachine.com-joblog.tar.gz&ugi=myid,mygroup
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1241)
at org.apache.hadoop.dfs.HftpFileSystem.open(HftpFileSystem.java:117)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:371)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.copy(DistCp.java:377)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:504)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:279)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:226)
at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2208)
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Issue Links

• relates to: HDFS-1109 HFTP and URL Encoding