Cloudera Community
Announcements
We’ve updated our product names and community labels - click here for full details
pvishnu
user rank
user rank
Expert Contributor

Re: Atlas (Failed to obtain graph instance)

by Expert Contributor Expert Contributor in Support Questions
‎06-17-2024 06:25 AM
1 Kudo
‎06-17-2024 06:25 AM
1 Kudo
@AElbehwash Could you check the stdout/stderr for any errors? Ideally located at "/var/run/cloudera-scm-agent/process/##########-atlas-ATLAS_SERVER/logs/*" in the Atlas server node. ... View more

Re: Listing directories to which user has access

by Expert Contributor Expert Contributor in Support Questions
‎05-23-2024 10:04 AM
‎05-23-2024 10:04 AM
@phr1 You can identify to which resource paths the user was granted access to via Ranger HDFS policies using the following REST API, # curl -k -u <user> https://<ranger-admin-fqdn>:<port>/service/plugins/policies/service/name/<name>?user=<user> Refer "GET /plugins/policies/service/name/{name}" in the following documentation ServiceREST API ... View more

Re: Apache Atlas - How to show all attributes whe...

by Expert Contributor Expert Contributor in Support Questions
‎06-07-2022 08:47 AM
‎06-07-2022 08:47 AM
Hi @gianluca , If you would like to view all the attributes while creating a new entity in the Atlas Web UI, please use the toggle button on the top right in the Create entity window to switch it from "Required" to "All".   Hope this helps with your requirement!   Thanks, Prashanth Vishnu ... View more

Re: Apache Knox LDAP configuration is not used

by Expert Contributor Expert Contributor in Support Questions
‎12-28-2021 02:43 AM
‎12-28-2021 02:43 AM
Hi @daba,   Could you check the following topology file in the Knox gateway node to validate if the authentication provider change you made in the CM UI is reflected at the host level as well? - /var/lib/knox/gateway/conf/topologies/knoxsso.xml   Thanks, Prashanth Vishnu ... View more

Re: Ranger doesn't stop logging audit events when ...

by Expert Contributor Expert Contributor in Support Questions
‎12-28-2021 02:31 AM
1 Kudo
‎12-28-2021 02:31 AM
1 Kudo
Hi @arturbrandys1,   The Audit decision taken by Ranger (whether to audit or not) are based on matching resource. That is, if there is a policy which allows audit for a certain resource, then audit will be performed irrespective of whether that policy is governing access policy or not. And in your case, suppose if there is another policy with audit enabled on a higher level - like the root directory "/" for hdfs - then lower level policy can override the access rights but can’t limit the audit logging.   Thanks, Prashanth Vishnu ... View more

Re: Upgrading JDK version on Ambari 2.7.5.0 cluste...

by Expert Contributor Expert Contributor in Support Questions
‎10-15-2021 05:58 AM
1 Kudo
‎10-15-2021 05:58 AM
1 Kudo
Hi @MikeB ,   Here's the latest documentation on how to change the JDK version for Ambari 2.7.5, https://docs.cloudera.com/HDPDocuments/Ambari-latest/administering-ambari/content/amb_change_your_jdk.html   As instructed, after running Ambari server setup, you'll need to restart Ambari server followed by restarting all the cluster services since it is required to restart each component for the new JDK to be used by the Hadoop services.   Hope this helps answer your query! Thanks, Prashanth Vishnu ... View more

Re: Adding one more Oozie server failed in Ambari.

by Expert Contributor Expert Contributor in Support Questions
‎09-16-2021 07:26 PM
‎09-16-2021 07:26 PM
Hi @Mdali ,   Maybe the file"/usr/hdp/current/oozie-server/oozie-sharelib.tar.gz" is corrupted? Could you try copying the file from the other Oozie server if its the same version? Then try restarting again and let us know how it goes.   Thanks, Prashanth Vishnu ... View more

Re: Adding one more Oozie server failed in Ambari.

by Expert Contributor Expert Contributor in Support Questions
‎09-15-2021 08:03 AM
‎09-15-2021 08:03 AM
Hi @Mdali , Could you ensure the KDC server is reachable from the Ambari server? If it isn't then it is possible that the tasks might get timed out.   # ping <KDC host> # telnet <KDC host> 88 Also, check the ambari-server.log for the keyword "CreatePrincipalsServerAction", as ideally below are the messages you can expect when you add a oozie server to the cluster,   ------------- 14 Sep 2021 03:03:23,511 INFO [Server Action Executor Worker 2577] KerberosServerAction:359 - Processing identities... 14 Sep 2021 03:03:23,518 INFO [Server Action Executor Worker 2577] CreatePrincipalsServerAction:205 - Processing principal, oozie/<FQDN>@HADOOP.COM 14 Sep 2021 03:03:23,921 INFO [Server Action Executor Worker 2577] KerberosServerAction:463 - Processing identities completed. -------------   Thanks, Prashanth Vishnu ... View more

Re: How does the deny conditon work?

by Expert Contributor Expert Contributor in Support Questions
‎09-15-2021 07:54 AM
‎09-15-2021 07:54 AM
Hi @noway , Did you try to enable deny conditions in Policies with the steps shared and retry? Can you confirm if it worked as intended?   Thanks, Prashanth Vishnu ... View more

Re: Adding one more Oozie server failed in Ambari.

by Expert Contributor Expert Contributor in Support Questions
‎09-13-2021 08:51 PM
‎09-13-2021 08:51 PM
Hi @Mdali ,   Based on the error message "'oozie/FQDN' not found in Kerberos database", looks like the oozie kerberos prinicpal creation failed. Could you check the Ambari server logs during the time you tried to add another Oozie server to identify the cause?   Thanks, Prashanth Vishnu ... View more
Contact Me
Online
Offline
Last Visited
‎03-11-2026 04:54 AM
Community Statistics
Member Since ‎08-24-2018 05:53 AM
Last Visited ‎03-11-2026 04:54 AM
Posts 84
Kudos received 4