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Disabling Paging in NiFi Registry LDAP Identity Pr...

by Expert Contributor Expert Contributor in Community Articles
‎09-11-2018 01:14 AM
‎09-11-2018 01:14 AM
OBJECTIVE: Resolve issues with some lightweight LDAP services such as the HDP Demo LDAP Provider OVERVIEW: Some LDAP services do not properly support paging for LDAP query results. In order to support these LDAP services, paging of results needs to be disabled in the LDAP provider properties for the NiFi Registry service SYMPTOM: The NiFi Registry does not respond or times out, and the following error is seen repeatedly in the NiFi Registry log (nifi-registry-app.log): 2018-09-01 01:01:05,189 INFO [main] o.s.l.c.AbstractRequestControlDirContextProcessor No matching response control found - looking for 'class javax.naming.ldap.PagedResultsResponseControl 2018-09-01 01:01:05,274 INFO [main] o.s.l.c.AbstractRequestControlDirContextProcessor No matching response control found - looking for 'class javax.naming.ldap.PagedResultsResponseControl 2018-09-01 01:01:05,359 INFO [main] o.s.l.c.AbstractRequestControlDirContextProcessor No matching response control found - looking for 'class javax.naming.ldap.PagedResultsResponseControl RESOLUTION: Using Ambari, under the configs tab for NiFi Registry, navigate to the Advanced nifi-registry-authorizers-env section. Edit the "Template for authorizers.xml" value to remove the Page Size property. Removing this property will disable paging for LDAP queries in this identity provider. Be aware that for extremely large result sets, this can result in a connection timeout. After saving the change, restart the Nifi Registry service. ... View more
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Re: Zeppelin notebook encryption for local file sy...

by Expert Contributor Expert Contributor in Support Questions
‎08-30-2018 08:14 PM
1 Kudo
‎08-30-2018 08:14 PM
1 Kudo
There is no supported local filesystem encryption for notebooks in Zeppelin 0.7.3, so the external options, such as S3 as you mention, are likely your best bet if you need encryption. However, Zeppelin 0.8.0 (supported in HDP 3.0 and above, offers an option to store notebooks in an HDFS filesystem, which can be encrypted transparently. https://zeppelin.apache.org/docs/0.8.0/setup/storage/storage.html ... View more

Re: Is there Hive storage handler for Postgres?

by Expert Contributor Expert Contributor in Support Questions
‎08-06-2018 07:58 PM
‎08-06-2018 07:58 PM
HDP 3.0 now supports the JDBC storage handler for Hive, which should enable access to Postgres... ... View more

Re: Where is Hive View on HDP 3 ?

by Expert Contributor Expert Contributor in Support Questions
‎07-19-2018 04:26 PM
‎07-19-2018 04:26 PM
For the moment, Zeppelin can be a functional replacement, and many issues/features for Zeppelin/Livy/Hive have been addressed in 3.0 as well! https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.0.0/release-notes/hdp-release-notes.pdf ... View more

Re: Zeppelin Note Permission doesn't work with whe...

by Expert Contributor Expert Contributor in Support Questions
‎07-17-2018 02:03 PM
‎07-17-2018 02:03 PM
Excellent - glad that's working! There is a patch being tested for this issue here, too: https://issues.apache.org/jira/browse/ZEPPELIN-3128 ... View more

Re: How to delete a Type in Atlas?

by Expert Contributor Expert Contributor in Support Questions
‎07-17-2018 02:02 PM
‎07-17-2018 02:02 PM
Good deal - HTH! ... View more

Re: How to delete a Type in Atlas?

by Expert Contributor Expert Contributor in Support Questions
‎07-16-2018 07:05 PM
‎07-16-2018 07:05 PM
If you are on version 0.8.0 or later of Atlas (HDP 2.6 and up), the version 2.0 APIs support deleting a type via the a DELETE operation on the types/typededfs API: DELETE /v2/types/typedefs (with JSON payload specifying the typedef to delete) http://atlas.apache.org/0.8.0-incubating/api/v2/index.html https://atlas.apache.org/0.8.1/api/v2/resource_TypesREST.html The legacy (v1) API only supports GET, PUT and POST operations on types. ... View more

Re: Zeppelin Note Permission doesn't work with whe...

by Expert Contributor Expert Contributor in Support Questions
‎07-16-2018 06:52 PM
‎07-16-2018 06:52 PM
I believe that Zeppelin is only able to populate users and groups lists when they are provided explicitly in the shiro.ini (e.g., when using local authentication). However, even when the users/groups are not populating automatically, typing in the full username and pressing enter will successfully enter the username in the authorized list, and, once saved, the user will be granted access to the note. ... View more

Re: Hiveserver2 ATLAS_HOOK Error

by Expert Contributor Expert Contributor in Support Questions
‎07-13-2018 12:23 PM
‎07-13-2018 12:23 PM
There are a few possible causes for this, but with only one message in the queue and a fairly short (which I'm reading here as low-impact) job, my first bet would be that the permissions are not set up in Ranger for the Hive user to be able to write to the Atlas Kafka topic. (https://community.hortonworks.com/questions/60564/atlas-api-times-out-on-entity-creation.html) ... View more

Re: Converting CEF to CSV with Apache NiFi

by Expert Contributor Expert Contributor in Support Questions
‎07-12-2018 04:39 PM
‎07-12-2018 04:39 PM
The ParseCEF processor should get you started. It can either pass the CEF fields as attributes of the flowfile or convert to a JSON flowfile for further processing. ... View more
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Last Visited ‎01-06-2020 11:34 AM
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