hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Koji Noguchi <knogu...@yahoo-inc.com>
Subject Re: Draining/Decommisioning a tasktracker
Date Fri, 28 Jan 2011 18:40:13 GMT
Hi Rishi,

https://issues.apache.org/jira/browse/HADOOP-5643
is added to version 0.21.  Some 0.20 branches may have this as well.

However, even with this feature, I believe TaskTracker immediately kills itself when all the
tasks on the TaskTrackers finish but doesn't take care of the  jobs still depending on the
map outputs from that node.

Koji



On 1/28/11 2:14 AM, "rishi pathak" <mailmaverick666@gmail.com> wrote:



Hi,
        Is there a way to drain a tasktracker. What we require is not to schedule any more
map/red tasks onto a tasktracker(mark it offline) but still the running tasks should not be
affected.



Mime
View raw message