Hortonworks webhdfs i try to list all folder it will work on Hortonworks console using curl command but not...












0















I try to list the name of the folder using webhdfs in C#. URL working fine using curl in sandbox but not in C# in my laptop



Error Message-
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond



Code:



static void Main(string args)
{
Uri myUri = new Uri("http://hostname:50070/webhdfs/v1/user/hive/warehouse");
string userName = "myuser";

WebHDFSClient hdfsClient = new WebHDFSClient(myUri, userName);
string strDirectoryPath= "/user/hive/warehouse";
ArrayList l = new ArrayList();
l.Add(hdfsClient.GetDirectoryStatus(
strDirectoryPath).Result.Directories);
}









share|improve this question

























  • Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

    – Samson Scharfrichter
    Jan 19 at 12:10











  • i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

    – user3843858
    Jan 19 at 14:29











  • OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

    – Samson Scharfrichter
    Jan 20 at 18:36
















0















I try to list the name of the folder using webhdfs in C#. URL working fine using curl in sandbox but not in C# in my laptop



Error Message-
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond



Code:



static void Main(string args)
{
Uri myUri = new Uri("http://hostname:50070/webhdfs/v1/user/hive/warehouse");
string userName = "myuser";

WebHDFSClient hdfsClient = new WebHDFSClient(myUri, userName);
string strDirectoryPath= "/user/hive/warehouse";
ArrayList l = new ArrayList();
l.Add(hdfsClient.GetDirectoryStatus(
strDirectoryPath).Result.Directories);
}









share|improve this question

























  • Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

    – Samson Scharfrichter
    Jan 19 at 12:10











  • i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

    – user3843858
    Jan 19 at 14:29











  • OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

    – Samson Scharfrichter
    Jan 20 at 18:36














0












0








0








I try to list the name of the folder using webhdfs in C#. URL working fine using curl in sandbox but not in C# in my laptop



Error Message-
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond



Code:



static void Main(string args)
{
Uri myUri = new Uri("http://hostname:50070/webhdfs/v1/user/hive/warehouse");
string userName = "myuser";

WebHDFSClient hdfsClient = new WebHDFSClient(myUri, userName);
string strDirectoryPath= "/user/hive/warehouse";
ArrayList l = new ArrayList();
l.Add(hdfsClient.GetDirectoryStatus(
strDirectoryPath).Result.Directories);
}









share|improve this question
















I try to list the name of the folder using webhdfs in C#. URL working fine using curl in sandbox but not in C# in my laptop



Error Message-
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond



Code:



static void Main(string args)
{
Uri myUri = new Uri("http://hostname:50070/webhdfs/v1/user/hive/warehouse");
string userName = "myuser";

WebHDFSClient hdfsClient = new WebHDFSClient(myUri, userName);
string strDirectoryPath= "/user/hive/warehouse";
ArrayList l = new ArrayList();
l.Add(hdfsClient.GetDirectoryStatus(
strDirectoryPath).Result.Directories);
}






c# hadoop webhdfs






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edited Jan 19 at 9:18









Ivan Kaloyanov

1,2193918




1,2193918










asked Jan 19 at 9:14









user3843858user3843858

7011




7011













  • Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

    – Samson Scharfrichter
    Jan 19 at 12:10











  • i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

    – user3843858
    Jan 19 at 14:29











  • OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

    – Samson Scharfrichter
    Jan 20 at 18:36



















  • Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

    – Samson Scharfrichter
    Jan 19 at 12:10











  • i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

    – user3843858
    Jan 19 at 14:29











  • OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

    – Samson Scharfrichter
    Jan 20 at 18:36

















Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

– Samson Scharfrichter
Jan 19 at 12:10





Stupid test first: can you curl from your laptop? I would not be surprised if there was a firewall blocking your access to the WebHDFS service...

– Samson Scharfrichter
Jan 19 at 12:10













i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

– user3843858
Jan 19 at 14:29





i am running curl on sandbox not on laptop, but C# i am running from laptop visual studio

– user3843858
Jan 19 at 14:29













OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

– Samson Scharfrichter
Jan 20 at 18:36





OK, so you did not understand what I meant. Second attempt: Try. Running. curl. From. Your. Laptop. To check out network connectivity issues.

– Samson Scharfrichter
Jan 20 at 18:36












1 Answer
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few issues:




  1. your URI is "http://hostname:50070/webhdfs/v1/user/hive/warehouse", and your strDirectoryPath= "/user/hive/warehouse" - so your duplicating the path to be "http://hostname:50070/webhdfs/v1/user/hive/warehouse/user/hive/warehouse" which does not exist

  2. you user "myuser" may not have permissions access to /user/hive/warehouse - check its permissions by "hdfs dfs -ls /user/hive/warehouse"

  3. (just checking) the 'hostname' in the URI - is just for the question and not in the actual code, right? you'll need the hostname/ip of the sandbox






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    1 Answer
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    0














    few issues:




    1. your URI is "http://hostname:50070/webhdfs/v1/user/hive/warehouse", and your strDirectoryPath= "/user/hive/warehouse" - so your duplicating the path to be "http://hostname:50070/webhdfs/v1/user/hive/warehouse/user/hive/warehouse" which does not exist

    2. you user "myuser" may not have permissions access to /user/hive/warehouse - check its permissions by "hdfs dfs -ls /user/hive/warehouse"

    3. (just checking) the 'hostname' in the URI - is just for the question and not in the actual code, right? you'll need the hostname/ip of the sandbox






    share|improve this answer




























      0














      few issues:




      1. your URI is "http://hostname:50070/webhdfs/v1/user/hive/warehouse", and your strDirectoryPath= "/user/hive/warehouse" - so your duplicating the path to be "http://hostname:50070/webhdfs/v1/user/hive/warehouse/user/hive/warehouse" which does not exist

      2. you user "myuser" may not have permissions access to /user/hive/warehouse - check its permissions by "hdfs dfs -ls /user/hive/warehouse"

      3. (just checking) the 'hostname' in the URI - is just for the question and not in the actual code, right? you'll need the hostname/ip of the sandbox






      share|improve this answer


























        0












        0








        0







        few issues:




        1. your URI is "http://hostname:50070/webhdfs/v1/user/hive/warehouse", and your strDirectoryPath= "/user/hive/warehouse" - so your duplicating the path to be "http://hostname:50070/webhdfs/v1/user/hive/warehouse/user/hive/warehouse" which does not exist

        2. you user "myuser" may not have permissions access to /user/hive/warehouse - check its permissions by "hdfs dfs -ls /user/hive/warehouse"

        3. (just checking) the 'hostname' in the URI - is just for the question and not in the actual code, right? you'll need the hostname/ip of the sandbox






        share|improve this answer













        few issues:




        1. your URI is "http://hostname:50070/webhdfs/v1/user/hive/warehouse", and your strDirectoryPath= "/user/hive/warehouse" - so your duplicating the path to be "http://hostname:50070/webhdfs/v1/user/hive/warehouse/user/hive/warehouse" which does not exist

        2. you user "myuser" may not have permissions access to /user/hive/warehouse - check its permissions by "hdfs dfs -ls /user/hive/warehouse"

        3. (just checking) the 'hostname' in the URI - is just for the question and not in the actual code, right? you'll need the hostname/ip of the sandbox







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 19 at 19:15









        Doron VeederDoron Veeder

        4915




        4915






























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