did not thank about that good points
I found a way to keep it from happening
I set dfs.datanode.du.reserved in the config file
"Hairong Kuang" <[email protected]> wrote in
message news:c59f9164.ed09%[email protected]...
%Remaining is much more fluctuate than %dfs used. This is because dfs
shares
the disks with mapred and mapred tasks may use a lot of disks temporally.
So
trying to keep the same %free is impossible most of the time.
Hairong
On 1/19/09 10:28 PM, "Billy Pearson"
<[email protected]> wrote:
Why do we not use the Remaining % in place of use Used % when we are
selecting datanode for new data and when running the balancer.
form what I can tell we are using the use % used and we do not factor in
non
DFS Used at all.
I see a datanode with only a 60GB hard drive fill up completely 100%
before
the other servers that have 130+GB hard drives get half full.
Seams like Trying to keep the same % free on the drives in the cluster
would
be more optimal in production.
I know this still may not be perfect but would be nice if we tried.
Billy
