errors during region move on node startup

[Kireet <ki...@feedly.com>]

We are seeing some client side "retries exhausted" errors when we add a 
node to our hbase cluster. Our settings are 4 tries at 1 second delay, 
which seems to me like it should be enough time to avoid errors given 
this post:

http://hadoop-hbase.blogspot.com/2014/08/hbase-client-response-times.html

When we decomission a node, we don't see errors. So can we assume the 
errors occur because on node startup many regions move at once? Is there 
a way to throttle this? We are running 0.94.20.

Thanks
Kireet