Why do I able to query WebHDFS after disabling it?












0














I disabled WebHDFS for security reasons. After service restart I checked dfs.webhdfs.enabled property to be false. But I can still perform queries against WebHDFS interface. For example I can get content summary



GET /webhdfs/v1/?user.name=hdfs&op=GETCONTENTSUMMARY


returns content summary information.



Why I am able to do this and how to disable WebHDFS completely?










share|improve this question






















  • Did you actually reboot the namenode(s)?
    – cricket_007
    Nov 20 '18 at 13:58










  • @cricket_007 yes, I can see property value in hdfs-site.xml
    – Morozov Ivan
    Nov 20 '18 at 14:08










  • Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
    – cricket_007
    Nov 20 '18 at 14:25










  • @cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
    – Morozov Ivan
    Nov 20 '18 at 14:27










  • Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
    – cricket_007
    Nov 20 '18 at 14:36
















0














I disabled WebHDFS for security reasons. After service restart I checked dfs.webhdfs.enabled property to be false. But I can still perform queries against WebHDFS interface. For example I can get content summary



GET /webhdfs/v1/?user.name=hdfs&op=GETCONTENTSUMMARY


returns content summary information.



Why I am able to do this and how to disable WebHDFS completely?










share|improve this question






















  • Did you actually reboot the namenode(s)?
    – cricket_007
    Nov 20 '18 at 13:58










  • @cricket_007 yes, I can see property value in hdfs-site.xml
    – Morozov Ivan
    Nov 20 '18 at 14:08










  • Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
    – cricket_007
    Nov 20 '18 at 14:25










  • @cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
    – Morozov Ivan
    Nov 20 '18 at 14:27










  • Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
    – cricket_007
    Nov 20 '18 at 14:36














0












0








0







I disabled WebHDFS for security reasons. After service restart I checked dfs.webhdfs.enabled property to be false. But I can still perform queries against WebHDFS interface. For example I can get content summary



GET /webhdfs/v1/?user.name=hdfs&op=GETCONTENTSUMMARY


returns content summary information.



Why I am able to do this and how to disable WebHDFS completely?










share|improve this question













I disabled WebHDFS for security reasons. After service restart I checked dfs.webhdfs.enabled property to be false. But I can still perform queries against WebHDFS interface. For example I can get content summary



GET /webhdfs/v1/?user.name=hdfs&op=GETCONTENTSUMMARY


returns content summary information.



Why I am able to do this and how to disable WebHDFS completely?







security hadoop hdfs webhdfs






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 20 '18 at 13:53









Morozov IvanMorozov Ivan

519518




519518












  • Did you actually reboot the namenode(s)?
    – cricket_007
    Nov 20 '18 at 13:58










  • @cricket_007 yes, I can see property value in hdfs-site.xml
    – Morozov Ivan
    Nov 20 '18 at 14:08










  • Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
    – cricket_007
    Nov 20 '18 at 14:25










  • @cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
    – Morozov Ivan
    Nov 20 '18 at 14:27










  • Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
    – cricket_007
    Nov 20 '18 at 14:36


















  • Did you actually reboot the namenode(s)?
    – cricket_007
    Nov 20 '18 at 13:58










  • @cricket_007 yes, I can see property value in hdfs-site.xml
    – Morozov Ivan
    Nov 20 '18 at 14:08










  • Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
    – cricket_007
    Nov 20 '18 at 14:25










  • @cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
    – Morozov Ivan
    Nov 20 '18 at 14:27










  • Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
    – cricket_007
    Nov 20 '18 at 14:36
















Did you actually reboot the namenode(s)?
– cricket_007
Nov 20 '18 at 13:58




Did you actually reboot the namenode(s)?
– cricket_007
Nov 20 '18 at 13:58












@cricket_007 yes, I can see property value in hdfs-site.xml
– Morozov Ivan
Nov 20 '18 at 14:08




@cricket_007 yes, I can see property value in hdfs-site.xml
– Morozov Ivan
Nov 20 '18 at 14:08












Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
– cricket_007
Nov 20 '18 at 14:25




Just because you edit the file, does not mean that value immediately takes affect while the process is running... You must stop the namenode, then restart it
– cricket_007
Nov 20 '18 at 14:25












@cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
– Morozov Ivan
Nov 20 '18 at 14:27




@cricket_007, sorry for ambiguance, I forgot to mention, that I have restarted all components of HDFS through the Ambari interface
– Morozov Ivan
Nov 20 '18 at 14:27












Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
– cricket_007
Nov 20 '18 at 14:36




Ah, then yeah, that should work, in theory. I've not tried it recently, though, actually
– cricket_007
Nov 20 '18 at 14:36












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