Take a look at DataXceiverServer.java: /** * Server used for receiving/sending a block of data. * This is created to listen for requests from clients or * other DataNodes. This small server does not use the * Hadoop IPC mechanism. */
On Sun, Nov 7, 2010 at 12:43 PM, Abhinay Mehta <[email protected]>wrote: > 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 >
