@Hammad Ali, The problem has been solved .And I have not install ranger plugin from ambari. Thank for you answer.Thank you. ... View more

Note that the requests don't work if the service is in maintenance mode. So to be safe, I usually disable it before interacting with the service via API. This worked for me. Change the exported variables accordingly for your setup export SERVICE=HDFS export PASSWORD=admin export AMBARI_HOST=localhost export CLUSTER=Sandbox #get status curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X GET http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE #disable maintenance mode curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Remove HDFS from maintenance mode"}, "Body": {"ServiceInfo": {"maintenance_state": "OFF"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/HDFS #stop service curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Stop $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "INSTALLED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE #start service curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Start $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE ... View more

I solved this problem after adding this property to core-site.xml. <configuration> <property> <name>hadoop.security.authentication</name> <value>kerberos</value> </property> </configuration> ... View more

@Paul Boali just want d3 for ad hoc data visualization ... View more

Thanks !!! ... View more

Thanks Ali very much! I paused the VM, threfore it did not allow me to change the memory config. After stopping the VM as you suggested , I was able to configure the memory. ... View more

I also get this warning on HDP 2.3.2 - It is only a warning and I'd be interested to know what the impact is. It seems strange that the "ranger" user doesn't have access to the "/var/lib/ranger" folder...especially as there are .bash_profile files in here, suggesting it's some kind of home folder [root@sandbox ranger]# id ranger uid=1008(ranger) gid=503(hadoop) groups=503(hadoop),487(ranger) [root@sandbox ranger]# ls -dl /var/lib/ranger drwx------ 2 kms kms 4096 2015-10-27 12:56 /var/lib/ranger [root@sandbox ranger]# ls -la . total 20 drwx------ 2 kms kms 4096 2015-10-27 12:56 . drwxr-xr-x. 39 root root 4096 2016-02-28 14:38 .. -rw-r--r-- 1 kms kms 18 2015-09-22 16:40 .bash_logout -rw-r--r-- 1 kms kms 176 2015-09-22 16:40 .bash_profile -rw-r--r-- 1 kms kms 124 2015-09-22 16:40 .bashrc [root@sandbox ranger]# getent passwd ranger ranger:x:1008:503:Ranger:/var/lib/ranger:/bin/bash [root@sandbox ranger]# Should I make the 'ranger' user part of the kms group? I would still have to make the /var/lib/ranger folder group readable (at least). ... View more