Break FSDatasetInterface#writeToBlock() into writeToTemporary, writeToRBW, and append ------------------------------------------------------------------------------------- Key: HDFS-543 URL: Project: Hadoop HDFS Issue Type: Sub-task Components: data-node Affects Versions: Append Branch Reporter: Hairong Kuang Assignee: Hairong Kuang Fix For: Append Branch FSDatasetInterface#writeToBlock() currently allows to create/recover a temporary replica, create/recover a RBW replica, or append to a replica. The implementation of the method in FSDataset is very complicated and error prone. I'd like to break this method into 3: 1. writeToTemporary allows to create a Temporary replica or recover from a packet error for a Tempoary replica; 2. writeToRBW allows to create a RBW replica or recover from a packet error for a RBW replica; 3. append allows to append to an existing Finalized replica. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.