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Kai Zheng commented on HADOOP-12924: ------------------------------------ OK, it won't be bad to have a policy for the legacy coder, since we would have one for the dummy coder. So, what's needed for now would be, a mapping between {{codec-name}} and {{raw-coder-factory-class}}. In the original design by HDFS-7337, it would be done by {{ErasureCodec}}, but for phase 1 and right now, for simple we can have a simple enum or hard-coded mapping codes somewhere. For the legacy and dummy policies, we just hard-code the raw-coder-factory class; for the default RS policy, in addition to the hard-coded default raw coder, we allow to configure the class just as current code does using the default coder key. Sounds good? > Add default coder key for creating raw coders > --------------------------------------------- > > Key: HADOOP-12924 > URL: https://issues.apache.org/jira/browse/HADOOP-12924 > Project: Hadoop Common > Issue Type: Sub-task > Reporter: Rui Li > Assignee: Rui Li > Priority: Minor > Attachments: HADOOP-12924.1.patch > > > As suggested > [here|https://issues.apache.org/jira/browse/HADOOP-12826?focusedCommentId=15194402&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15194402]. -- This message was sent by Atlassian JIRA (v6.3.4#6332)