FAQ
Dave Thompson created HADOOP-8703:
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Summary: distcpV2: turn CRC checking off for 0 byte size
Key: HADOOP-8703
URL: https://issues.apache.org/jira/browse/HADOOP-8703
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 0.23.3
Reporter: Dave Thompson
Assignee: Dave Thompson
Fix For: 0.23.3


DistcpV2 (hadoop-tools/hadoop-distcp/..) can fail from checksum failure, sometimes when copying a 0 byte file. Root cause of this may have to do with an inconsistent nature of HDFS when creating 0 byte files, however distcp can avoid this issue by not checking CRC when size is zero.

This issue was reported as part of HADOOP-8233, though it seems like a better idea to treat this particular aspect on it's own.

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postedAug 15, '12 at 3:22p
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