找到hadoop-config.sh(2.6.0的是在libexec文件夹下)
找到最后一行

if [ "$HADOOP_CLASSPATH" != "" ]; then
  # Prefix it if its to be preceded
  if [ "$HADOOP_USER_CLASSPATH_FIRST" != "" ]; then
    CLASSPATH=${HADOOP_CLASSPATH}:${CLASSPATH}
  else
    CLASSPATH=${CLASSPATH}:${HADOOP_CLASSPATH}
  fi
fi

替换为

CLASSPATH=`cygpath -wp "$CLASSPATH"`
if [ "$HADOOP_CLASSPATH" != "" ]; then
  # Prefix it if its to be preceded
  if [ "$HADOOP_USER_CLASSPATH_FIRST" != "" ]; then
    CLASSPATH=${HADOOP_CLASSPATH}:${CLASSPATH}
  else
    CLASSPATH=${CLASSPATH}:${HADOOP_CLASSPATH}
  fi
fi