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Todd Lipcon |
at Dec 18, 2009 at 5:04 pm
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Hi Jeff,
You can tune dfs.datanode.balance.bandwidthPerSec in order to change the
speed at which the balancer moves data around. It defaults to 1MB/sec so as
to avoid using significant cluster resources, but you could certainly bump
it up for an individual balancer run if you need it to go quicker.
-Todd
On Fri, Dec 18, 2009 at 5:05 AM, Jeff Zhang wrote:It's my mistake, the balancer process is so slow that make me think it
balance regarding the block
Jeff Zhang
On Fri, Dec 18, 2009 at 8:36 PM, Brian Bockelman <
[email protected]wrote:
Hey Jeff,
I have not encountered this.
http://dcache-head.unl.edu:8088/dfshealth.jspThe nodes that are 10x bigger have 10x more blocks on them. What makes you
think this is true?
Brian
On Dec 18, 2009, at 4:29 AM, Jeff Zhang wrote:
Hi all,
When I invoke the balancer command, I found that it seems hdfs want to
balance the block number of each data node rather than the percentage
of
each machine's remaining capacity.
Not sure if I am correct, could any help on this ?
Thank you
Jeff Zhang
