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https://issues.apache.org/jira/browse/HADOOP-10865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15150010#comment-15150010
]
Masatake Iwasaki commented on HADOOP-10865:
-------------------------------------------
Hmm.. {{TestDFSClientRetries#testRetryOnChecksumFailure}} expects that the
description of ChecksumException contains "Checksum error". (Jenkins did not
run the test because it is under hadoop-hdfs.)
{noformat}
java.lang.AssertionError: Expected to find 'Checksum error' but got unexpected
exception:org.apache.hadoop.fs.ChecksumException: Checksum CRC32C not matched
for file /corrupted at position 0: expected=3047312A but computed=B5E7A6EF,
algorithm=PureJavaCrc32C
...
at
org.apache.hadoop.hdfs.TestDFSClientRetries.testRetryOnChecksumFailure(TestDFSClientRetries.java:930)
{noformat}
The assertion or {{DataChecksum#throwChecksumException}} should be fixed to
match these.
{code}
try {
dis.read(arr, 0, (int)FILE_LENGTH);
fail("Expected ChecksumException not thrown");
} catch (Exception ex) {
GenericTestUtils.assertExceptionContains(
"Checksum error", ex);
}
}
{code}
> Add a Crc32 chunked verification benchmark for both directly and non-directly
> buffer cases
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-10865
> URL: https://issues.apache.org/jira/browse/HADOOP-10865
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: HADOOP-10865.002.patch, c10865_20140717.patch,
> c10865_20160216.patch, c10865_20160216b.patch
>
>
> Currently, it is not easy to compare Crc32 chunked verification
> implementations. Let's add a benchmark.
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