About PrernaU

LoaiMohamed · ‎09-19-2023

Accepted solution, it worked with me. thanks Ranaga

PrernaU · ‎10-22-2021

@PabitraDas The objective is to copy data between two distinct clusters

nikhilm · ‎10-21-2021

Hi @PrernaU , It seems like the logged in user does not have permission to access the interpreter page. The authorization is dependent on how you have configured your shiro authentication. If you have integrated your AD with zeppelin the make sure the role mapping has done correctly and you have the correct user/group defined in the shiro roles section.

VidyaSargur · ‎06-13-2021

Hi @PrernaU, did @Sean464's solution help you? If so, can you please mark the appropriate reply as the solution? It will make it easier for others to find the answer in the future.

aps · ‎05-12-2021

@PrernaU Ambari 2.7.5 is only fully compatible with HDP 3.1.5, while other HDP 3.1.x or 3.0.x versions are partially compatible for upgrade only. Please see.

aps · ‎05-10-2021

@PrernaU I hope you haven't changed any config in HDFS. Please compare pre & Post upgrade configs using ambari UI. Considering the exception below, I have seen this issue once due to memory issue on a single DataNode. ERROR: Cannot set priority of datanode process 45359 i.e. The available memory was 12GB while the DN heap was set to 16GB & due to this the DN JVM was failing to start. /proc/meminfo: MemTotal: 131407744 kB MemFree: 2180792 kB MemAvailable: 12004080 kB You can try checking which process is using RAM by running below command and try to reduce the RAM utilization and start the DN process #ps aux --sort -rss There could be something else but probably some host level crunch is causing the JVM to not get started properly. Please check DN.out and DN.log file once for more details.

PrernaU · ‎05-04-2021

Thanks @vidanimegh I have raised the case with Cloudera 🙂

GangWar · ‎04-26-2021

@PrernaU You can check if ipc.client.fallback-to-simple-auth-allowed to true in core-site.xml and see if that helps.

Scharan · ‎03-18-2021

why am I not seeing python and sh options as well? # you need to install python and sh interpreter manually, refer to the following doc on how to install it https://zeppelin.apache.org/docs/0.8.0/usage/interpreter/installation.html Was your question answered? Make sure to mark the answer as the accepted solution. If you find a reply useful, say thanks by clicking on the thumbs up button.

PrernaU · ‎03-12-2021

I modified the permission to 777 for /user After which I am able to install Spark and able to install history server. sudo -u hdfs hadoop fs -chmod 777 /user

Online	Offline
Last Visited	‎10-26-2021 11:28 PM

Member Since	‎03-02-2021 03:59 AM
Last Visited	‎10-26-2021 11:28 PM
Posts	25
Kudos received	2

Cloudera Community

Re: Zeppelin default login

Re: Zeppelin default login

Re: Configure viewFS with HDFS fedration on CDP-PC...

Re: Zeppelin interpreter -Not able to add new inte...

Re: DFSIO fails with error "User hdfs does not hav...

Re: Upgrade HDP 3.0.1.0 to HDP 3.1.0: Error in Rea...

Re: Services are Not starting post the integration...

Re: Ranger fails to install as ranger_3_1_4_0_315-...

Re: Error starting ResourceManager Post kerberos I...

Re: Zeppelin reports connection refused with Spark

Re: Spark History Server fails to start with new i...