About bandarusridhar1

bandarusridhar1 · ‎08-07-2017

@Dhiraj Update the ResourceManager with the new set of NodeManagers. On the ResourceManager host machine, execute the following command: su <YARN_USER> yarn rmadmin -refreshNodes where <YARN_USER> is the user who owns the YARN services, for example, yarn . Hope this helps you. Link

bandarusridhar1 · ‎08-02-2017

@Dhiraj Yes, as Sonu mentioned it works only if the account is synced before LDAP sync. This works similar to Ambari LDAP sync but here in Ranger User sync will be automatic.

bandarusridhar1 · ‎07-21-2017

@Dhiraj In addition to @mqureshi, if you are looking for upgrade proccess. There are two methods for upgrading HDP with Ambari: Rolling Upgrade and Express Upgrade. A Rolling Upgrade orchestrates the HDP upgrade in an order that is meant to preserve cluster operation and minimize service impact during upgrade. This process has more stringent prerequisites (particularly regarding cluster high availability configuration) and can take longer to complete than an Express Upgrade. An Express Upgrade orchestrates the HDP upgrade in an order that will incur cluster downtime but with less stringent prerequisites. Here is the link for the upgrade procces https://docs.hortonworks.com/HDPDocuments/Ambari-2.5.1.0/bk_ambari-upgrade/content/upgrading_HDP_perform_the_upgrade.html Hope this helps you.

bandarusridhar1 · ‎07-20-2017

@Dhiraj We can't clone the Ambari Views, you need to install the standalone ambari view and rebuild all your views if you looking for two views pointing to single environment and even you have option for 'Remote Clusters Register'

bandarusridhar1 · ‎07-19-2017

@sysadmin CreditVidya Here hdfs dfs -df -h refers to the HDFS filesystem and displays the amount of disk space available on the file system containing. df -h refer to the local filesystem with respect to that particular server or node. df displays the amount of disk space available on the file system containing each file name argument. If no file name is given, the space available on all currently mounted file systems is shown Always hdfs dfs -df -h and hdfs dfsadmin -report should give you the same information as below: [hdfs@abcd ~]$ hdfs dfs -df -h Filesystem Size Used Available Use% hdfs://hdplab 139.5 G 9.1 G 119.2 G 7% [hdfs@abcd ~]$ hdfs dfsadmin -report Configured Capacity: 149775056896 (139.49 GB) Present Capacity: 137747146752 (128.29 GB) DFS Remaining: 127948359680 (119.16 GB) DFS Used: 9798787072 (9.13 GB) DFS Used%: 7.11% Under replicated blocks: 48 Blocks with corrupt replicas: 0 Missing blocks: 0 Missing blocks (with replication factor 1): 0 Hope this helps you.

bandarusridhar1 · ‎07-13-2017

@Shashant Panwar If you click on the Hive Service --> Config you can see option to increase Hiveserver2 Heap Size and Client Heap Size. Please increase them in order to overcome the issue. Were as in Hive CLI it connect directly to Hive Metastore but for beeline it has it's own metastore inside Hiveserver2. Hoep this helps you.

bandarusridhar1 · ‎07-13-2017

@Dhiraj Yes, this is the only way to drop the database along with tables inside it. I haven't faced any issues till now but I;m not sure of best practices

bandarusridhar1 · ‎07-13-2017

@Dhiraj Yes, this is the only way to drop the database along with tables inside it. I haven't faced any issues till now but I;m not sure of best practices

bandarusridhar1 · ‎07-12-2017

@Dhiraj DROP DATABASE will fail if the database is not empty. To drop the tables in the database as well, use DROP DATABASE ... CASCADE

bandarusridhar1 · ‎07-12-2017

@Sami Ahmad For changing the Ranger Admin password, we need to change the password in 3 different locations. 1. In Ambari you need to change the password at highlighted places: 2. Login to ranger using admin/admin, click on the profile at right-top, then click on change password. Below screenshot helps you to navigate Note: Password should be same across all the places and it should be minimum 8 characters. Hope this helps you.

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