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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6903) Crc32 checksum errors in Big-Endian Architecture
Date Thu, 21 Aug 2014 14:51:11 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HDFS-6903:
-----------------------------------

    Target Version/s:   (was: 2.5.1)

> Crc32 checksum errors in Big-Endian Architecture
> ------------------------------------------------
>
>                 Key: HDFS-6903
>                 URL: https://issues.apache.org/jira/browse/HDFS-6903
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0, 2.4.1, 2.6.0
>         Environment: PowerPC RHEL 7 & 6.5 ( ppc64 - Big-Endian )
>            Reporter: Ayappan
>            Priority: Blocker
>
> Native Crc32 checksum calculation is not handled in Big-Endian Architecture.In this case,
the platform is ppc64. Due to this several testcases in HDFS module fails.
> Running org.apache.hadoop.hdfs.TestAppendDifferentChecksum
> Tests run: 3, Failures: 0, Errors: 2, Skipped: 1, Time elapsed: 13.274 sec <<<
FAILURE! - in org.apache.hadoop.hdfs.TestAppendDifferentChecksum
> testAlgoSwitchRandomized(org.apache.hadoop.hdfs.TestAppendDifferentChecksum)  Time elapsed:
7.141 sec  <<< ERROR!
> java.io.IOException: p=/testAlgoSwitchRandomized, length=28691, i=12288
>         at org.apache.hadoop.util.NativeCrc32.nativeVerifyChunkedSums(Native Method)
>         at org.apache.hadoop.util.NativeCrc32.verifyChunkedSums(NativeCrc32.java:57)
>         at org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:291)
>         at org.apache.hadoop.hdfs.RemoteBlockReader2.readNextPacket(RemoteBlockReader2.java:202)
>         at org.apache.hadoop.hdfs.RemoteBlockReader2.read(RemoteBlockReader2.java:137)
>         at org.apache.hadoop.hdfs.DFSInputStream$ByteArrayStrategy.doRead(DFSInputStream.java:682)
>         at org.apache.hadoop.hdfs.DFSInputStream.readBuffer(DFSInputStream.java:738)
>         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:795)
>         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:836)
>         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:644)
>         at java.io.FilterInputStream.read(FilterInputStream.java:83)
>         at org.apache.hadoop.hdfs.AppendTestUtil.check(AppendTestUtil.java:129)
>         at org.apache.hadoop.hdfs.TestAppendDifferentChecksum.testAlgoSwitchRandomized(TestAppendDifferentChecksum.java:130)
> testSwitchAlgorithms(org.apache.hadoop.hdfs.TestAppendDifferentChecksum)  Time elapsed:
1.394 sec  <<< ERROR!
> java.io.IOException: p=/testSwitchAlgorithms, length=3000, i=0
>         at org.apache.hadoop.util.NativeCrc32.nativeVerifyChunkedSums(Native Method)
>         at org.apache.hadoop.util.NativeCrc32.verifyChunkedSums(NativeCrc32.java:57)
>         at org.apache.hadoop.util.DataChecksum.verifyChunkedSums(DataChecksum.java:291)
>         at org.apache.hadoop.hdfs.RemoteBlockReader2.readNextPacket(RemoteBlockReader2.java:202)
>         at org.apache.hadoop.hdfs.RemoteBlockReader2.read(RemoteBlockReader2.java:137)
>         at org.apache.hadoop.hdfs.DFSInputStream$ByteArrayStrategy.doRead(DFSInputStream.java:682)
>         at org.apache.hadoop.hdfs.DFSInputStream.readBuffer(DFSInputStream.java:738)
>         at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:795)
>         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:836)
>         at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:644)
>         at java.io.FilterInputStream.read(FilterInputStream.java:83)
>         at org.apache.hadoop.hdfs.AppendTestUtil.check(AppendTestUtil.java:129)
>         at org.apache.hadoop.hdfs.TestAppendDifferentChecksum.testSwitchAlgorithms(TestAppendDifferentChecksum.java:94)



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