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  1. HBase
  2. HBASE-13400

HBase Snapshot export to S3 fails with Content-MD5 errors.

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 0.98.0
    • Fix Version/s: None
    • Labels:
      None
    • Environment:

      CentOS 6.5, Hortonworks Data Platform 2.1.2, Hadoop 2.4.0

      Description

      We're running into issues exporting snapshots of large tables to Amazon S3.

      The snapshot completes successfully, but the snapshot export job runs into errors with jets3t when we attempt to export to S3.

      Error snippet, from job log:

      2015-04-03 16:59:16,425 INFO  [main] mapreduce.Job: Task Id : attempt_1426532296228_55454_m_000008_1, Status : FAILED
      Error: org.apache.hadoop.fs.s3.S3Exception: org.jets3t.service.S3ServiceException: S3 Error Message. -- ResponseCode: 400, ResponseStatus: Bad Request, XML Error Message: <?xml version="1.0" encoding="UTF-8"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><ExpectedDigest>CWiSsgzVAJyzPy2oT8u4Ag==</ExpectedDigest><CalculatedDigest>2DIsv6jZJ8FuGtalOO8SPA==</CalculatedDigest><RequestId>CA325C738970C313</RequestId><HostId>tnE+O1zPZovaQWMhCuM4lkX0h/wN9173FQ7omxZzLb6eH0OCHASyan+mb8WBJkNn</HostId></Error>
      	at org.apache.hadoop.fs.s3native.Jets3tNativeFileSystemStore.handleS3ServiceException(Jets3tNativeFileSystemStore.java:405)
      	at org.apache.hadoop.fs.s3native.Jets3tNativeFileSystemStore.storeFile(Jets3tNativeFileSystemStore.java:115)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:606)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:190)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:103)
      	at org.apache.hadoop.fs.s3native.$Proxy19.storeFile(Unknown Source)
      	at org.apache.hadoop.fs.s3native.NativeS3FileSystem$NativeS3FsOutputStream.close(NativeS3FileSystem.java:221)
      	at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:70)
      	at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:103)
      	at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.copyFile(ExportSnapshot.java:200)
      	at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.map(ExportSnapshot.java:140)
      	at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.map(ExportSnapshot.java:89)
      	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
      	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
      	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
      	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
      	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:1557)
      	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
      Caused by: org.jets3t.service.S3ServiceException: S3 Error Message. -- ResponseCode: 400, ResponseStatus: Bad Request, XML Error Message: <?xml version="1.0" encoding="UTF-8"?><Error><Code>BadDigest</Code><Message>The Content-MD5 you specified did not match what we received.</Message><ExpectedDigest>CWiSsgzVAJyzPy2oT8u4Ag==</ExpectedDigest><CalculatedDigest>2DIsv6jZJ8FuGtalOO8SPA==</CalculatedDigest><RequestId>CA325C738970C313</RequestId><HostId>tnE+O1zPZovaQWMhCuM4lkX0h/wN9173FQ7omxZzLb6eH0OCHASyan+mb8WBJkNn</HostId></Error>
      	at org.jets3t.service.S3Service.putObject(S3Service.java:2267)
      	at org.apache.hadoop.fs.s3native.Jets3tNativeFileSystemStore.storeFile(Jets3tNativeFileSystemStore.java:113)
      	... 21 more
      
      2015-04-03 17:03:50,613 INFO  [main] mapreduce.Job: Task Id : attempt_1426532296228_55454_m_000010_1, Status : FAILED
      AttemptID:attempt_1426532296228_55454_m_000010_1 Timed out after 300 secs
      

      We've verified that exports to other clusters from these same snapshots work fine. Thus the issue appears to lie within the snapshot export utility, jets3t, and S3.

      "The Content-MD5 you specified did not match what we received" seems to indicate that the snapshot changed between when the upload started and the error. Can that be?

      Related to:
      Discussion on jets3t user group,.

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            • Assignee:
              Unassigned
              Reporter:
              JReid Joseph Reid
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              • Created:
                Updated: