Copying a file to local with Crc throws an exception
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Key: HADOOP-5085
URL: https://issues.apache.org/jira/browse/HADOOP-5085
Project: Hadoop Core
Issue Type: Bug
Components: fs
Reporter: Hairong Kuang
Fix For: 0.21.0
$ hadoop dfs -get -crc /user/aa/test.txt test.txt
get: org.apache.hadoop.dfs.DistributedFileSystem cannot be cast to
org.apache.hadoop.fs.ChecksumFileSystem
The problem seems to be caused by the line 251 in FsShell#copyToLocal:
{noformat}
250; if (copyCrc) {
251: ChecksumFileSystem csfs = (ChecksumFileSystem) srcFS;
...
}
{noformat}
Copying crc files to local should not require the source file system to be
ChecksumFileSystem.
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