问题描述
使用Marlin进行矩阵运算时报错:
java.net.ConnectException:
Call From master/192.168.1.101 to master:8020 failed on connection exception:
java.net.ConnectException: 拒绝连接;
For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
问题缘由
HDFS端口配置错误
解决方案
修改/home/hadoop-2.6.2/etc/hadoop/core-site.xml,将fs.default.name中主机的端口修改为相应的8020端口。