Thanks Harsh! My image size is about 3.1 Gb. Yes, I think feature from HDFS-1457 is what I need, but unfortunately it is not available in version of hadoop we use.
What kind of risks pose by these peaks. On Mon, Mar 25, 2013 at 7:31 PM, Harsh J <[email protected]> wrote: > What's your fsimage size? If its too high you would want to control > the checkpoint transfer bandwidth to not affect the load at the NN. > This is available via the JIRA HDFS-1457. > > > On Mon, Mar 25, 2013 at 8:13 PM, Ivan Tretyakov > <[email protected]> wrote: > > Hi! > > > > We see DataNode heartbeat average time peaks in Ganglia up to 20-70 > seconds > > while SecondaryNameNode performs checkpointing. > > See attached screenshots please. > > > > I would like to clarify if it is Ok, or not. And what kind of > consequences > > and risks it could bring up. > > > > -- > > Best Regards > > Ivan Tretyakov > > > > -- > Harsh J > -- Best Regards Ivan Tretyakov
