Re: Max DataXceiver Exceeded Logs in DataNode log files

2013-04-04 Thread Chris Nauroth
Hello Sreekanth, The threads that you see named "PacketResponder" are in fact the threads allocated from the BlockReceiver class. As you noticed, they are placed into the same thread group as the threads named "DataXceiver" allocated from the DataXceiverServer class. The current count is determi

Fwd: Max DataXceiver Exceeded Logs in DataNode log files

2013-04-04 Thread Sreekanth Ramakrishnan
Posting my previous mail from issues mailing list to dev mailing list. Hi All, We are currently running Hadoop 0.20.X version of hadoop cluster in our environment. We have been recently observing slow down of datanodes and DFSClient times out. Looking at the logs in the data nodes we noticed t