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From Abhinay Mehta <abhinay.me...@gmail.com>
Subject What are xcievers?
Date Sun, 07 Nov 2010 20:43:06 GMT
Hi all,

Our hadoop cluster went down today with the following error:

ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
DatanodeRegistration(a.b.c.d:50010,
storageID=DS-131834207-127.0.1.1-50010-1276853028220, infoPort=50075,
ipcPort=50020):DataXceiver
java.io.IOException: xceiverCount 257 exceeds the limit of concurrent
xcievers 256

I read on some forums that we should increase the default number of
xcievers, which is OK, I will do that.
But I couldn't find any documentation to what xcievers are and how they are
used up?

Any info or links to documentation would be much appreciated.

Thank you.

Regards,
Abhinay Mehta

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