Which version are you using? Regards, Yi Liu
-----Original Message----- From: norbi [mailto:no...@rocknob.de] Sent: Wednesday, August 20, 2014 10:14 PM To: user@hadoop.apache.org Subject: hdfs dfsclient, possible to force storage datanode ? hi list, we have 52 DNs and more hundred clients they are store and read data from hdfs. one rack has 3 DNs and about 15 clients. it is possible to force (if space is available) that these 15 clients prefer the 3 DNs located in there own rack to store and read data? racklocation.conf with "org.apache.hadoop.net.NetworkTopology" is allready in use, but this does not help in this case thanks
