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GAO Rui commented on HDFS-7661: ------------------------------- [~zhz], these make sense to me. Let's store data length in {{.meta}} file. For replication block .meta file, data length means the length of the related block. While, for EC internal block .meta file, data length means the related block group data length. > Erasure coding: support hflush and hsync > ---------------------------------------- > > Key: HDFS-7661 > URL: https://issues.apache.org/jira/browse/HDFS-7661 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Tsz Wo Nicholas Sze > Assignee: GAO Rui > Attachments: EC-file-flush-and-sync-steps-plan-2015-12-01.png, > HDFS-7661-unitTest-wip-trunk.patch, > HDFS-EC-file-flush-sync-design-version1.1.pdf > > > We also need to support hflush/hsync and visible length. -- This message was sent by Atlassian JIRA (v6.3.4#6332)