org.apache.hadoop.hdfs.server.balancer.Balancer: 0 under utilized nodes:
and shuts down with no errors.
Thanks.
Alex.
-Original Message-
From: Harsh J
To:
Sent: Mon, Jan 7, 2013 1:17 pm
Subject: Re: balancer and under replication
Under normal operation, NN takes care of under-replicated blocks
Thanks Harsh, you're the first, as usual.
Currently, there are 291 active nodes spread in 11 racks. We have
rack-awareness enable for a year (work like a champ).
I ran fsck throughout HDFS again and noticed that majority of the
files that have under repl. blocks
are set to have 255 replicas but a
Under normal operation, NN takes care of under-replicated blocks by itself.
A file with a replication factor set higher than the cluster's nodes
will also register its blocks as under-replicated. A common config
mistake here is the mapred.submit.replication, which is a default of
10 (useful for 10
