Wei-Chiu Chuang created HDFS-10971:
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Summary: Distcp should not copy replication factor if source file
is erasure coded
Key: HDFS-10971
URL: https://issues.apache.org/jira/browse/HDFS-10971
Project: Hadoop HDFS
Issue Type: Bug
Components: distcp
Affects Versions: 3.0.0-alpha1
Reporter: Wei-Chiu Chuang
Assignee: Wei-Chiu Chuang
The current erasure coding implementation uses replication refactor field to
store erasure coding policy.
Distcp copies the source file's replication refactor to the destination if -pr
is specified. However, if the source file is EC, the replication factor (which
is EC policy) should not be replicated to the destination file.
In fact, I will attach a test case that shows trying to replicate the
replication factor of an EC file results in an IOException: "Requested
replication factor of 0 is less than the required minimum of 1 for
/tmp/dst/dest2"
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