With five +1 (Suresh, Chris, Dhruba, Stack and myself) and no -1, the vote passed. I am going to commitHDFS-127 to 0.20 and above.
Nicholas ----- Original Message ---- > From: "Tsz Wo (Nicholas), Sze" <s29752-hadoop...@yahoo.com> > To: hdfs-dev@hadoop.apache.org > Sent: Mon, October 19, 2009 2:34:01 PM > Subject: [VOTE] port HDFS-127 (DFSClient block read failures cause open > DFSInputStream to become unusable) to hadoop 0.20/0.21 > > DFSClient has a retry mechanism on block acquiring for read. If the number > of > retries attends to a certain limit (defined by > dfs.client.max.block.acquire.failures), DFSClient will throw a > BlockMissingException back to the user application. In the current > implementation, DFSClient counts the failures across multiple block acquiring > operations but the block acquiring operations are supposed to be independent. > > HDFS-127 fixes this problem by counting the failures within a single > operation. > > I propose to commit HDFS-127 to 0.20 and above since this fix is safe and > very > useful. > > Nicholas Sze
