We use dfs.exclude to point to a file containing a list of nodes with problems, and HDFS does not use those nodes. We have mapred.exclude point to the same file, but the jobtracker still allows connections from those nodes. Has anyone else gotten this to work?
Further, it's easy to get the namenode to recognize changes in the file (hadoop dfsadmin -refreshNodes), but I do not see a way to get the jobtracker to re-read it. Is there a way to do this? Thanks! David
