[ https://issues.apache.org/jira/browse/HDFS-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao updated HDFS-4213: ---------------------------- Attachment: HDFS-4213.007.patch Update the patch to address comments from Aaron and Nicholas. Did not change the interface part in this patch, but we can revisit it later. > When the client calls hsync, allows the client to update the file length in > the NameNode > ---------------------------------------------------------------------------------------- > > Key: HDFS-4213 > URL: https://issues.apache.org/jira/browse/HDFS-4213 > Project: Hadoop HDFS > Issue Type: New Feature > Affects Versions: 3.0.0 > Reporter: Jing Zhao > Assignee: Jing Zhao > Attachments: HDFS-4213.001.patch, HDFS-4213.002.patch, > HDFS-4213.003.patch, HDFS-4213.004.patch, HDFS-4213.005.patch, > HDFS-4213.006.patch, HDFS-4213.007.patch > > > As per discussion in HDFS-3960 and HDFS-2802, when clients that need strong > consistency update the file length at the NameNode, a special sync/flush is > required for getting the length of the being written files when snapshots are > taken for these files. This jira implements this sync-with-updating-length by > 1) calling ClientProtocol#fsync(), and 2) adding a new field to > ClientProtocol#fsync() to indicate the length information. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira