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jack liuquan commented on HADOOP-11828: --------------------------------------- Hi, [~zhz] and [~walter.k.su], have you reviewed the codes? let me know if you have finished review.Thanks! Hi, kai, the last checkstyle issue is below: ./hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/erasurecode/coder/util/HHUtil.java:0:: Missing package-info.java file. How can I ignore this ussue or Do I really need to add a package-info.java file? > Implement the Hitchhiker erasure coding algorithm > ------------------------------------------------- > > Key: HADOOP-11828 > URL: https://issues.apache.org/jira/browse/HADOOP-11828 > Project: Hadoop Common > Issue Type: Sub-task > Reporter: Zhe Zhang > Assignee: jack liuquan > Attachments: 7715-hitchhikerXOR-v2-testcode.patch, > 7715-hitchhikerXOR-v2.patch, HADOOP-11828-hitchhikerXOR-V3.patch, > HADOOP-11828-hitchhikerXOR-V4.patch, HADOOP-11828-hitchhikerXOR-V5.patch, > HADOOP-11828-hitchhikerXOR-V6.patch, HADOOP-11828-hitchhikerXOR-V7.patch, > HDFS-7715-hhxor-decoder.patch, HDFS-7715-hhxor-encoder.patch > > > [Hitchhiker | > http://www.eecs.berkeley.edu/~nihar/publications/Hitchhiker_SIGCOMM14.pdf] is > a new erasure coding algorithm developed as a research project at UC > Berkeley. It has been shown to reduce network traffic and disk I/O by 25%-45% > during data reconstruction while retaining the same storage capacity and > failure tolerance capability as RS codes. This JIRA aims to introduce > Hitchhiker to the HDFS-EC framework, as one of the pluggable codec algorithms. > The existing implementation is based on HDFS-RAID. -- This message was sent by Atlassian JIRA (v6.3.4#6332)