Hi,   I am trying to connect hive database from nodejs using hive-driver npm. In that code,the session cannot be established to access the hive database. I am putting the console for each and every variables,but the log was printed,before the session establishing code only.please anyone help me on this.please refer a snap shot below.   ... View more

@asmarz, One of our members posted a reply on how to add users in the thread you posted a similar question to later the same day.   As this is an older thread which was previously marked 'Solved', you would have a better chance of receiving a resolution by starting a new thread. This will also provide the opportunity for you to provide details specific to your environment about what you did in an attempt to add the relevant user accounts that could aid others in providing a more relevant, accurate answer to your question.     ... View more

Thanks for the information. In using this command, it did cause some serious performance degradation when writing to HDFS. Every 128MB block would take about 20-30 secs to write to HDFS. The issue had to do with trying to compress the tar file. It's better to remove the "z" flag in tar and not compress.   Just to provide some numbers, writing almost 1TB of data from local disk to HDFS would take 13+ hours with compression (z) and it would actually eventually fail due to kerberos ticket expiration. Removing the "z" flag, the copy to HDFS took less than an hour for the same 1TB of data!  ... View more

Please accept best answer and close the thread. ... View more

Can you help me with working demo of enabling service level authorisation for yarn. I followed the steps in https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/ServiceLevelAuth.html#Enable_Service_Level_Authorization but it is not working. I can run yarn jobs from any user irrespective of the acl settings. I tried this in HDP 2.3.4.0 with Ambari 2.2.0 FYI, ranger plugin policies are working fine. I tried this with and without enabling ranger plugin. However service level authorisation is working fine in case of apache hadoop. ... View more

Hello I have forgotten about this, but at the end I have actually got it to work. What needs to be done was using kadmin to create a new keytab, and and add principal ambari-server@KRB.HDP to the keytab. Also it needs a full restart of the sandbox. See Setup Kerberos for Ambari Server Thanks to @Geoffrey Shelton Okot for pointing the right direction ... View more

thanks , it worked now 😉 ... View more

Its a firewall issue, added the firewall rule in amabari server and fixed the password less login issue to register the host. ... View more

Iif you put this machine in a separate config group and remove referencw to the directories used you can keep the machine up. Removing disk and not replacing will mean your data will be writing to OS filesystem. Also do what Benjamin siggests and increase tolerance. ... View more