Hello! Excuse me if I'm writing to the wrong mailing list.
The information at http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsDesign.html seems outdated: 1. "There is a plan to support appending-writes to files in the future." Append was implemented in HADOOP-1700, wasn't it? 2. "HDFS does not yet implement user quotas or access permissions" It contradicts to https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsQuotaAdminGuide.html and https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html 3. "Currently, automatic restart and failover of the NameNode software to another machine is not supported." - but there is High Availability feature. -- Best Regards, Dmitry Simonov
