Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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2.6.0, 2.7.1
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None
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None
Description
Trying to use distcp to copy a file more than 5GB to swift fs results in a stack like the following:
15/06/01 20:58:57 ERROR util.RetriableCommand: Failure in Retriable command: Copying hdfs://xxx:8020/path/to/random-5Gplus.dat to swift://xxx/5Gplus.dat
Invalid Response: Method COPY on http://xxx:8080/v1/AUTH_fb7a8901dd8d4c8dba27f5e5d55a46a9/test/.distcp.tmp.attempt_local1097967418_0001_m_000000_0 failed, status code: 413, status line: HTTP/1.1 413 Request Entity Too Large COPY http://xxx:8080/v1/AUTH_fb7a8901dd8d4c8dba27f5e5d55a46a9/test/.distcp.tmp.attempt_local1097967418_0001_m_000000_0 => 413 : <html><h1>Request Entity Too Large</h1><p>The body of your request was too large for this server.</p></html>
at org.apache.hadoop.fs.swift.http.SwiftRestClient.buildException(SwiftRestClient.java:1502)
at org.apache.hadoop.fs.swift.http.SwiftRestClient.perform(SwiftRestClient.java:1403)
at org.apache.hadoop.fs.swift.http.SwiftRestClient.copyObject(SwiftRestClient.java:923)
at org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.copyObject(SwiftNativeFileSystemStore.java:765)
at org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.rename(SwiftNativeFileSystemStore.java:617)
at org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem.rename(SwiftNativeFileSystem.java:577)
at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.promoteTmpToTarget(RetriableFileCopyCommand.java:220)
at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:137)
at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:100)
at org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87)
at org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:280)
at org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:252)
at org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:50)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
It looks like the problem actually occurs in the rename operation which happens after the copy. The rename is implemented as a copy/delete, and this secondary copy looks like it's not done in a way that breaks up the file into smaller chunks.
It looks like the following bug:
https://bugs.launchpad.net/sahara/+bug/1428941
It does not look like the fix for this is incorporated into hadoop's swift client.
Attachments
Issue Links
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HADOOP-12471 Support Swift file (> 5GB) continuious uploading where there is a failure
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- Open
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- depends upon
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- Patch Available
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- is related to
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- Resolved
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