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https://issues.apache.org/jira/browse/HADOOP-13665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HADOOP-13665:
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Description:
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.
was:
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.
> Erasure Coding codec should support fallback coder
> --------------------------------------------------
>
> Key: HADOOP-13665
> URL: https://issues.apache.org/jira/browse/HADOOP-13665
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: io
> Reporter: Wei-Chiu Chuang
>
> 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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