[HDFS-6903] Crc32 checksum errors in Big-Endian Architecture

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Affects Version/s: 2.4.1, 2.6.0, 3.0.0-alpha1
• Component/s: test

Environment

PowerPC RHEL 7 & 6.5 ( ppc64 - Big-Endian )

• Assignee: Unassigned
• Reporter: Ayappan
• Created: 21/Aug/14 07:22
• Updated: 12/May/16 18:15
• Resolved: 27/Jan/15 11:01

Description

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)

Issue Links

• duplicates: HADOOP-10846 DataChecksum#calculateChunkedSums not working for PPC when buffers not backed by array