not able to see "dfs.webhdfs.enabled" value in hdfs-site.xml

[#1]

Hi,

We are using CDH 5.14. Webhdfs is enabled by default on cloudera manger and i am able to list HDFS data through webhdfs protocol.

[root@hadoop-slave-1 ~]# curl -i -L "http://172.16.0.10:50070/webhdfs/v1/?op=LISTSTATUS"
HTTP/1.1 200 OK
Cache-Control: no-cache
Expires: Fri, 27 Sep 2019 13:52:56 GMT
Date: Fri, 27 Sep 2019 13:52:56 GMT
Pragma: no-cache
Expires: Fri, 27 Sep 2019 13:52:56 GMT
Date: Fri, 27 Sep 2019 13:52:56 GMT
Pragma: no-cache
Content-Type: application/json
X-FRAME-OPTIONS: SAMEORIGIN
Transfer-Encoding: chunked

{"FileStatuses":{"FileStatus":[
{"accessTime":0,"blockSize":0,"childrenNum":2,"fileId":33381,"group":"supergroup","length":0,"modificationTime":1569326622576,"owner":"hdfs","pathSuffix":"cli","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":10,"fileId":17365,"group":"supergroup","length":0,"modificationTime":1569589022824,"owner":"hdfs","pathSuffix":"hadoop","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":5,"fileId":33483,"group":"supergroup","length":0,"modificationTime":1569331210359,"owner":"hdfs","pathSuffix":"restorefromcli","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":3,"fileId":33489,"group":"supergroup","length":0,"modificationTime":1569331240068,"owner":"hdfs","pathSuffix":"restorefromcli1","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":4,"fileId":33645,"group":"supergroup","length":0,"modificationTime":1569331744422,"owner":"hdfs","pathSuffix":"restorefromcli_1","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":10,"fileId":33346,"group":"supergroup","length":0,"modificationTime":1569589022883,"owner":"hdfs","pathSuffix":"restorehdfs","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":3,"fileId":16386,"group":"supergroup","length":0,"modificationTime":1568894436274,"owner":"hdfs","pathSuffix":"tmp","permission":"1777","replication":0,"storagePolicy":0,"type":"DIRECTORY"},
{"accessTime":0,"blockSize":0,"childrenNum":5,"fileId":16387,"group":"supergroup","length":0,"modificationTime":1569324647144,"owner":"hdfs","pathSuffix":"user","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"}

But i am not able to see any config related to webhdfs in hdfs-site.xml .My concern is that, if this value(dfs.webhdfs.enabled) is enabled in cloudera, then it should also reflect in hdfs-site.xml file.

do anybody have any idea? 

Thanks

Devendra

[#2 · Accepted solution]

@pdev 

As per Hadoop Doc: 

https://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml

The default configuration for "dfs.webhdfs.enabled" is "true". Which means if you do not see it in hdfs-site.xml means it is by default enabled.  You can override it by editing the "hdfs-site.xml" based on your requirement.

dfs.webhdfs.enabled

true

Enable WebHDFS (REST API) in Namenodes and Datanodes.

[#3]

Thanks.. Jsen.