DFSClient should use mapreduce.task.attempt.id instead of the deprecated mapred.task.id.
Thanks Todd! I've committed this to trunk and branch 22.
Integrated in Hadoop-Hdfs-trunk-Commit #658 (See https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/658/)
HDFS-1947. DFSClient should use mapreduce.task.attempt.id. Contributed by Eli Collins
Integrated in Hadoop-Hdfs-22-branch #49 (See https://builds.apache.org/hudson/job/Hadoop-Hdfs-22-branch/49/)
Integrated in Hadoop-Hdfs-trunk #673 (See https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/673/)