Wei-Chiu Chuang created HADOOP-13665:
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Summary: Erasure Coding codec should support fallback coder
Key: HADOOP-13665
URL: https://issues.apache.org/jira/browse/HADOOP-13665
Project: Hadoop Common
Issue Type: Improvement
Components: io
Reporter: Wei-Chiu Chuang
I think EC issues should be reported in HDFS, but the code lands in Hadoop
Common anyway.
The current EC codec supports a single coder only (by default pure Java
implementation). If the native coder is specified but is unavailable, it should
fallback to pure Java implementation.
One possible solution is to follow the convention of existing Hadoop native
codec, such as transport encryption (see {{CryptoCodec.java}}). It supports
fallback by specifying two or multiple coders as the value of property, and
loads coders in order.
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