That looks confusing, usability-wise.
* A related question is how can I see the parameters with which a datanode was launched in order to check these values You can navigate to the conf servlet of the DataNode web UI e.g. http://w.x.y.z:50075/conf From: Alvaro Brandon <[email protected]> Date: Thursday, November 30, 2017 at 5:33 AM To: "[email protected]" <[email protected]> Subject: Parameter repeated twice in hdfs-site.xml What will happen if I have a repeated parameter in the configuration file for HDFS?. You can see here an example of a file where the parameters in bold are repeated with contradictory values: right and false. I need to know because I'm using a Docker image that builds the configuration file this way, through environmental variables and I want to know if it will create any conflicts. A related question is how can I see the parameters with which a datanode was launched in order to check these values <configuration> <property><name>dfs.datanode.use.datanode.hostname</name><value>false</value></property> <property><name>dfs.datanode.use.datanode.ip.hostname</name><value>false</value></property> <property><name>dfs.namenode.datanode.registration.ip-hostname-check</name><value>false</value></property> <property><name>dfs.datanode.data.dir</name><value>file:///hadoop/dfs/data</value></property> <property><name>dfs.client.use.datanode.hostname</name><value>false</value></property> <property><name>dfs.namenode.rpc-bind-host</name><value>0.0.0.0</value></property> <property><name>dfs.namenode.servicerpc-bind-host</name><value>0.0.0.0</value></property> <property><name>dfs.namenode.http-bind-host</name><value>0.0.0.0</value></property> <property><name>dfs.namenode.https-bind-host</name><value>0.0.0.0</value></property> <property><name>dfs.client.use.datanode.hostname</name><value>true</value></property> <property><name>dfs.datanode.use.datanode.hostname</name><value>true</value></property> </configuration>
