Hey namit, Having Jira issues.
Appends came into 19. They were buggy, they got taken out of 19. They are going to be a part of 0.21, the HBase crew seems to have tested the functionality of it (I have read) It is experimental in .0.20 config param turns them on http://www.mail-archive.com/core-...@hadoop.apache.org/msg40945.html http://www.cloudera.com/blog/2009/07/17/file-appends-in-hdfs/