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Created 11-05-2016 02:45 PM
hd-hive.pngI am new to HDinsight hadoop cluster , when i have open and Ambari ->hive view>query and execute any hive query(show tables etc..) i am getting error: java.net:UnknowhostException: namenode
Note: I am able to trigger hive query in HIVE cli .
HDP 2.7
hive 1.2
Created 11-05-2016 06:48 PM
@rama
Hive view will internally use: webhdfs file system uri So please check if the following property is set properly or not?
Click HDFS > Configs > Advanced > Advanced hdfs-site > dfs.namenode.http-address. When you enter the value in the view definition, pre-pend "webhdfs://" to the value you find in the advanced HDFS configuration settings.
For example, webhdfs://c6401.ambari.apache.org:50070
Please see: https://docs.hortonworks.com/HDPDocuments/Ambari-2.1.0.0/bk_ambari_views_guide/content/section_get_v...
Created 11-06-2016 03:15 AM
Thanks you@jss
I could not find dfs.namenode.http-address property too..i have share my hdfs_site screen short please help me to locate
Created 11-06-2016 04:00 AM
@rama
Please use the search filter to find the property mentioned.
Search for "dfs.namenode.http-address" in the "Properties Filter" text box which is present in the
HDFS > Configs > Advanced (In this page) you will find a search box beside the "Manage Config Groups" just put the property "dfs.namenode.http-address" there to search.
Created 11-06-2016 04:27 AM
Thanks you so much@jss
i could able to find the properties(attached screen short) ,so i need to edit properties ?hfds-http.png
Created 11-06-2016 07:23 AM
@rama
Hope the following article will help:
You do not need to edit the "dfs.namenode.http-address' instead you need to refer to that value so that it can be used inside your Hive View.
Manage Ambai --> Views --> HiveView (check its property "WebHDFS FileSystem URI*") this value need to be changed.
When it comes to setting WebHDFS FileSystem URI* , make sure you set to webhdfs://${dfs.nameservices} where ${dfs.nameservices} is the value defined in the "hdfs-site.xml" With *NO* Port to be specified. (When NameNode HA is configured)
Restart ambari-server
Created 11-06-2016 01:42 PM
Thanks @jss
I will check and let you know the result..
Created 11-08-2016 08:58 AM
HI @jss
I could find some configuration difference here
In PROD cluster ->managed ambari->views>hive->hive views->cluster configuration is set to "Local Ambari Managed Cluster" and its working fine
IN Dev cluster ->managed ambari->views>hive->hive views->cluster configuration is set to " custom" here it is not working
So should i change to "Local Ambari Managed Cluster"
if you want to me do this one , after save this should i need to restart the ambari server?
please suggest me