I am using cloudera's distribution version: hadoop-0.20.2+738. On Thu, Apr 14, 2011 at 6:23 PM, Ted Dunning <tdunn...@maprtech.com> wrote:
> What version are you using? > > > On Thu, Apr 14, 2011 at 3:55 PM, Thanh Do <than...@cs.wisc.edu> wrote: > >> Hi all, >> >> I have recently seen silent data loss in our system. >> Here is the case: >> >> 1. client appends to some block >> 2. for some reason, commitBlockSynchronization >> returns successfully with synclist = [] (i.e empty) >> 3. in the client code, NO exception is thrown, and >> client appends successfully. >> 4. However, the block replicas are then removed from >> datanodes, causing data loss. >> >> Have any one seen this before? >> Is this behavior by design or a bug? >> >> Many thanks, >> Thanh >> >> >> >> >
