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Kai Sasaki commented on HADOOP-13665: ------------------------------------- Thanks [~drankye] for comments. {quote} For example, if the codec name is xcodec, then the property key to be used to get the raw coders can be: "io.erasurecode.codec." + xcodec + ".rawcoders"; {quote} The default value of each config cannot be decided by given codec directly. So I set the default value into {{DEFAULT_CODERS_MAP}}. > 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 > Assignee: Kai Sasaki > Priority: Blocker > Labels: hdfs-ec-3.0-must-do > Attachments: HADOOP-13665.01.patch, HADOOP-13665.02.patch, > HADOOP-13665.03.patch, HADOOP-13665.04.patch, HADOOP-13665.05.patch, > HADOOP-13665.06.patch, HADOOP-13665.07.patch, HADOOP-13665.08.patch > > > 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. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org