rapid-fire IOErrors: turn them down

[ekoontz]

IOError happened uploading '/Users/ekoontz/hadoop/build/hadoop-0.20-tm-3.tar.gz' ('HTTP session already opened'): retrying.
IOError happened uploading '/Users/ekoontz/hadoop/build/hadoop-0.20-tm-3.tar.gz' ('HTTP session already opened'): retrying.
IOError happened uploading '/Users/ekoontz/hbase/build/hbase-0.20-tm-3.tar.gz' ('HTTP session already opened'): retrying.
IOError happened uploading '/Users/ekoontz/hbase/build/hbase-0.20-tm-3.tar.gz' ('HTTP session already opened'): retrying.
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/irb.rb:81:in `irb_abort'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/irb.rb:247:in `signal_handle'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/irb.rb:66:in `start'
from /Users/ekoontz/hbase-ec2/lib/hcluster.rb:187:in `call'
from /Users/ekoontz/hbase-ec2/lib/hcluster.rb:187:in `join'
from /Users/ekoontz/hbase-ec2/lib/hcluster.rb:187:in `upload_tars'
from /Users/ekoontz/hbase-ec2/lib/hcluster.rb:153:in `initialize'
from (irb):13:in `new'

Solution is to handle IOError exception by sleeping or resetting the SW connection (the @@ s3 object).