The web UI doesn't show any failures. And it does show several reduce tasks with progress = 475.70%... any clues?
On Sun, Dec 27, 2009 at 12:20 PM, <[email protected]> wrote: > Task failed? > > ---- 原始信息 ---- > 发自: Doopah Shaf <[email protected]> > 发送时间: > 收件人: [email protected] > 主题: hadoop job progress going back > > Running jobs sometimes displays progress as follows: > > map 100% reduce 10% > > and then > > map 100% reduce 0% > > What causes this? Is this speculative execution restarting tasks? > > Cheers, > DS >
