[ https://issues.apache.org/jira/browse/HDFS-7344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15829448#comment-15829448 ]
Zhe Zhang commented on HDFS-7344: --------------------------------- Thanks for taking care of this [~andrew.wang]. I think HDFS-8014 and HDFS-8015 can be resolved since HDFS-9719 (and possibly earlier JIRAs) has already introduced striped block reader and writer. If we don't have one already, we can create a JIRA to track the consolidation of client and DN -side block reader/writer code. [~drankye] probably has more insights into HDFS-8019 and HDFS-8020. Looks to me they can be closed as well. > [umbrella] Erasure Coding worker and support in DataNode > -------------------------------------------------------- > > Key: HDFS-7344 > URL: https://issues.apache.org/jira/browse/HDFS-7344 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Reporter: Kai Zheng > Assignee: Li Bo > Attachments: ECWorker-design-v2.pdf, hdfs-ec-datanode.0108.zip, > hdfs-ec-datanode.0108.zip, HDFS ECWorker Design.pdf > > > According to HDFS-7285 and the design, this handles DataNode side extension > and related support for Erasure Coding. More specifically, it implements > {{ECWorker}}, which reconstructs lost blocks (in striping layout). > It generally needs to restore BlockGroup and schema information from coding > commands from NameNode or other entities, and construct specific coding work > to execute. The required block reader, writer, either local or remote, > encoder and decoder, will be implemented separately as sub-tasks. > This JIRA will track all the linked sub-tasks, and is responsible for general > discussions and integration for ECWorker. It won't resolve until all the > related tasks are done. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org