Once you updated the configuration is the datanode, restarted? Check if the datanode log indicated that it was able to setup the new volume.
>________________________________ > From: Hamed Ghavamnia <ghavamni...@gmail.com> >To: hdfs-user@hadoop.apache.org >Sent: Sunday, January 1, 2012 11:33 AM >Subject: HDFS Datanode Capacity > > >Hi, >I've been searching on how to configure the maximum capacity of a datanode. >I've added big volumes to one of my datanodes, but the configured capacity >doesn't get bigger than the default 5GB. If I want a datanode with 100GB of >capacity, I have to add 20 directories, each having 5GB so the maximum >capacity reaches 100. Is there anywhere this can be set? Can different >datanodes have different capacities? > >Also it seems like the dfs.datanode.du.reserved doesn't work either, because >I've set it to zero, but it still leaves 50% of the free space for non-dfs >usage. > >Thanks, >Hamed > >P.S. This is my first message in the mailing list, so if I have to follow any >rules for sending emails, I'll be thankful if you let me know. :) > > >
