it's probably because high throughput lead slave IO ceiling,so
I modify hdfs.calltimeout to 60000 and  set hdfs api :
config.set("dfs.socket.timeout", "3600000");
config.set("dfs.datanode.socket.write.timeout", "3600000");
then problem solved !
On Thu, Mar 27, 2014 at 1:41 PM, Hari Shreedharan <[EMAIL PROTECTED]
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