Kai Zheng created HADOOP-11847:
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Summary: Enhance raw coder allowing to read least required inputs
in decoding
Key: HADOOP-11847
URL: https://issues.apache.org/jira/browse/HADOOP-11847
Project: Hadoop Common
Issue Type: Sub-task
Reporter: Kai Zheng
Assignee: Kai Zheng
This is to enhance raw erasure coder to allow only reading least required
inputs while decoding. It will also refine and document the relevant APIs for
better understanding and usage.
This is something planned to do but just got reminded by [~zhz]' s question
raised in HDFS-7678, also copied here:
bq.Kai Zheng I have a question about decoding: in a (6+3) schema, if block #2
is missing, and I want to repair it with blocks 0, 1, 3, 4, 5, 8, how should I
construct the inputs to RawErasureDecoder#decode?
With this work, hopefully the answer to above question would be obvious.
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