@Xianshun Chen I tried on my sandbox and this password works for me. [root@sandbox-hdp ~]# mysql -uroot -phadoop -hlocalhost Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 5.6.39 MySQL Community Server (GPL) You can try the following link to reset mysql password. https://www.howtoforge.com/setting-changing-resetting-mysql-root-passwords ... View more

@Michael Bronson Is not an obligation but if you are using a swap your process will be slower, is very recommend that you disable your swap and THP as follow. https://community.hortonworks.com/articles/55637/operating-system-os-optimizations-for-better-clust.html ... View more

@Anjali Shevadkar you are right, that's why I asked you to check hive cli, so, seems to be some configuration in your ranger. Did you try to connect using ZK hosts on your connection string? I suggest you check this following document, check the permissions on HDFS. Let me know if this works for you. Make sure the user that you configure as the same as the unix user (or ldap, whatever). Try to configure another user to test. https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.5/bk_security/content/configure_ranger_authentication.html Another important thing, check the permissions on your HDFS, because when you are using ranger you need to change the owner/group and permissions https://br.hortonworks.com/blog/best-practices-in-hdfs-authorization-with-apache-ranger/ ... View more

@Anurag Mishra can you check your kerberos ticket? # klist -e ... View more

@Anurag Mishra can you check your kerberos ticket? # klist -e ... View more

Did you already try to use hive directly instead of hue? Are you using ranger? If yes, have you check the policies? ... View more

@Anjali Shevadkar If you do the same thing using hive cli instead beeline, can you see the databases? Can other people see something? In my case I am used to use the connection as below: beeline -u "jdbc:hive2://zookeeperfqdn1:2181,zookeeperfqdn2:2181,zookeeperfqdn3:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2" Try use ZK FQDN instead hiveserver2 fqdn. ... View more

@Adi Jabkowsky Hi there. The main benefit using MTU 9000 is because hadoop works better with large files and you can transfer larger packages than use MTU 1500 (default). I think for detailed results you can use iperf tool. https://support.cumulusnetworks.com/hc/en-us/articles/216509388-Throughput-Testing-and-Troubleshooting I found some best practices too. https://community.hortonworks.com/articles/8563/typical-hdp-cluster-network-configuration-best-pra.html I hope this helps. ... View more