I have posted an issue on the bug tracker: https://issues.apache.org/jira/browse/HDFS-8852
I’m not too familiar with the project, so I will leave it to more qualified people to do it. From: Ravi Prakash [mailto:[email protected]] Sent: Tuesday, 4 August, 2015 3:52 AM To: [email protected] Subject: Re: Documentation inconsistency about append write in HDFS Thanks Thanh! Yes! Could you please post a patch? On Sunday, August 2, 2015 8:50 PM, Thanh Hong Dai <[email protected] <mailto:[email protected]> > wrote: In the latest version of the documentation (http://hadoop.apache.org/docs/current2/hadoop-project-dist/hadoop-hdfs/HdfsDesign.html#Simple_Coherency_Model and also documentation for version 2.x), it’s mentioned that “A file once created, written, and closed need not be changed. “ and “There is a plan to support appending-writes to files in the future.” However, as far as I know, HDFS has supported append write since 0.21, based on this JIRA (https://issues.apache.org/jira/browse/HDFS-265) and the old version of the documentation in 2012 (https://web.archive.org/web/20121221171824/http://hadoop.apache.org/docs/hdfs/current/hdfs_design.html#Appending-Writes+and+File+Syncs) Various posts on the Internet also suggests that append write has been available in HDFS, and will always be available in Hadoop version 2 branch. Can we update the documentation to reflect the most recent change? (Or will append write be deprecated or is it not ready for production use?)
