Fu-Ming,
While some JMX attributes are self explanatory, most could benefit
from a one line long description and a paragraph long description.
Usually your best bet is to grep the hadoop source code for the
attribute and try to understand what it is. From the name I just
assumed this was a measur
In my test case, the checkpoints take a small number of seconds or less.
On Thu, Dec 24, 2009 at 10:34 AM, Todd Lipcon wrote:
> How long does the checkpoint take? It seems possible to me that if the 2NN
> checkpoint takes longer than the interval, it's possible that multiple
> checkpoints will o
How long does the checkpoint take? It seems possible to me that if the 2NN
checkpoint takes longer than the interval, it's possible that multiple
checkpoints will overlap and might trigger this. (this is conjecture, so
definitely worth testing)
-Todd
On Wed, Dec 23, 2009 at 6:38 PM, Jason Venner
Hello all,
I am new to Hadoop, and have been trying to use the latest stable
release(0.20.1). When I tried the grep example in the pseudo-distributed
mode the hadoop's fs -put command results in SocketException. Socket's
getSendBufferSize method is throwing this error.
Here is the relevant log.
Dear all,
I've installed hadoop and use ganglia to monitor in our cluster.
Sometimes I got value dfs.fileSystem.TotalLoad from ganglia is around
4000.
I don't what it means. Does anyone knows?
Br,
Fu-Ming
--
"Losers always whine about their best."
Fu-Ming
I have been recently seeing a problem where jobs stop at map 0% that previously
worked fine (with no code changes.) Restarting hadoop on the cluster solves
this problem but there is nothing in the log files to indicate what the problem
is. Has anyone seen something similar?
