hdfswriter 不支持HDFS的HA

"writer": {
"name": "hdfswriter",
"parameter": {
**"defaultFS": "hdfs://hacluster",**
"fileType": "text",
"path": "/tmp/datax",
"fileName": "sg_ssd_rtu_p",
"column": [
{
"name": "col1",
"type": "STRING"
},
{
"name": "col2",
"type": "STRING"
},
{
"name": "col3",
"type": "STRING"
}
],
"writeMode": "append",
"fieldDelimiter": ","
}
}

}
]
}

**"defaultFS": "hdfs://hacluster",**

这样写法的FS，DataX无法识别和使用。

Start at the hdfswriter configuration path and trace how defaultFS is handled when set to hdfs://hacluster. Reproduce the issue with the supplied HA-style configuration; done means the writer recognizes and uses that defaultFS successfully.

Written by the indexing model from the issue text.