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Posted to hdfs-user@hadoop.apache.org by Lai Will <la...@student.ethz.ch> on 2011/05/03 22:11:10 UTC

Decommision to a single node

Hi,



I started off with a cluster of 8 nodes and did some benchmarks.

Now I wanted to see how my application scales and decided to decommission 6=  nodes an run the same benchmarks.

That went quite fast and worked fine.

(I did the same benchmark on 4 nodes already, before I discovered the decom= mission feature)



Now I want to do the same benchmark on a single node, so I did the same pro= cedure as I did before:

excluding one node, refreshing the data nodes, look at the decommission in = progress message. This time however the decommission process does not seem = to finish. I already decreased the replication number of the file to 1.



Does anyone have an idea what the problem could be?



Best,

Will