NullPointerException when trying to access a directory using HttpFS
I have a cluster running Hadoop 2.6.0-cdh5.4.1. I want to create a file inside a directory using webhdfs rest api. I have 2 directories called directory1 and directory2, both in /.
They both have the same permissions(711), owner and group.
The following command succeeds:
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory1?op=LISTSTATUS
while the following
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory2?op=LISTSTATUS
throws the error
{"message":null,"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}.
DatanodeUrl and HttpFSPort are the same for both commands. All webhdfs requests on directory2 fail with the same error(NullPointerException), while all webhdfs requests work on directory1.
Do you have any ideas what can cause this error?
Thank you.
hadoop hdfs cloudera webhdfs httpfs
asked Nov 23 '18 at 22:12
AdrianAdrian
12
add a comment |
I have a cluster running Hadoop 2.6.0-cdh5.4.1. I want to create a file inside a directory using webhdfs rest api. I have 2 directories called directory1 and directory2, both in /.
They both have the same permissions(711), owner and group.
The following command succeeds:
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory1?op=LISTSTATUS
while the following
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory2?op=LISTSTATUS
throws the error
{"message":null,"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}.
DatanodeUrl and HttpFSPort are the same for both commands. All webhdfs requests on directory2 fail with the same error(NullPointerException), while all webhdfs requests work on directory1.
Do you have any ideas what can cause this error?
Thank you.
hadoop hdfs cloudera webhdfs httpfs
asked Nov 23 '18 at 22:12
AdrianAdrian
12
The second one has the port part twice:HttpFSPort:HttpFSPort/. It seems that it should be only one.
– Takatoshi Kondo
Nov 24 '18 at 0:12
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28
add a comment |
I have a cluster running Hadoop 2.6.0-cdh5.4.1. I want to create a file inside a directory using webhdfs rest api. I have 2 directories called directory1 and directory2, both in /.
They both have the same permissions(711), owner and group.
The following command succeeds:
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory1?op=LISTSTATUS
while the following
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory2?op=LISTSTATUS
throws the error
{"message":null,"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}.
DatanodeUrl and HttpFSPort are the same for both commands. All webhdfs requests on directory2 fail with the same error(NullPointerException), while all webhdfs requests work on directory1.
Do you have any ideas what can cause this error?
Thank you.
hadoop hdfs cloudera webhdfs httpfs
asked Nov 23 '18 at 22:12
AdrianAdrian
12
I have a cluster running Hadoop 2.6.0-cdh5.4.1. I want to create a file inside a directory using webhdfs rest api. I have 2 directories called directory1 and directory2, both in /.
They both have the same permissions(711), owner and group.
The following command succeeds:
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory1?op=LISTSTATUS
while the following
curl --negotiate -u : https://DatanodeUrl:HttpFSPort/webhdfs/v1/directory2?op=LISTSTATUS
throws the error
{"message":null,"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}.
DatanodeUrl and HttpFSPort are the same for both commands. All webhdfs requests on directory2 fail with the same error(NullPointerException), while all webhdfs requests work on directory1.
Do you have any ideas what can cause this error?
Thank you.
hadoop hdfs cloudera webhdfs httpfs
hadoop hdfs cloudera webhdfs httpfs
asked Nov 23 '18 at 22:12
AdrianAdrian
12
asked Nov 23 '18 at 22:12
AdrianAdrian
12
edited Nov 24 '18 at 6:26
Adrian
asked Nov 23 '18 at 22:12
AdrianAdrian
12
asked Nov 23 '18 at 22:12
AdrianAdrian
12
asked Nov 23 '18 at 22:12
AdrianAdrian
12
12
The second one has the port part twice:HttpFSPort:HttpFSPort/. It seems that it should be only one.
– Takatoshi Kondo
Nov 24 '18 at 0:12
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28
add a comment |
The second one has the port part twice:HttpFSPort:HttpFSPort/. It seems that it should be only one.
– Takatoshi Kondo
Nov 24 '18 at 0:12
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28
The second one has the port part twice
:HttpFSPort:HttpFSPort/. It seems that it should be only one.– Takatoshi Kondo
Nov 24 '18 at 0:12
The second one has the port part twice
:HttpFSPort:HttpFSPort/. It seems that it should be only one.– Takatoshi Kondo
Nov 24 '18 at 0:12
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28
add a comment |
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The second one has the port part twice
:HttpFSPort:HttpFSPort/. It seems that it should be only one.– Takatoshi Kondo
Nov 24 '18 at 0:12
It was an unfortunate typo in the question. The command fails with the port written once as well. Thank you for the answer. I edited the question.
– Adrian
Nov 24 '18 at 6:28