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Li Bo commented on HDFS-7348: ----------------------------- Thanks Yi for the great work! I think decreasing network I/O is very important for a cluster using EC, for read part, we may read blocks in sequence; for write part, we may first write decoded blocks to local disk and then send them to remote datanodes. This may slow the recovery work, but we reduce the impaction to network I/O especially when the cluster is busy. For reader and writer, I think we may separate them out as independent classes so that other tasks can also use them. > Erasure Coding: striped block recovery > -------------------------------------- > > Key: HDFS-7348 > URL: https://issues.apache.org/jira/browse/HDFS-7348 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Reporter: Kai Zheng > Assignee: Yi Liu > Attachments: ECWorker.java, HDFS-7348.001.patch > > > This JIRA is to recover one or more missed striped block in the striped block > group. -- This message was sent by Atlassian JIRA (v6.3.4#6332)