About Carolyn

Carolyn · ‎02-14-2017

@Eric Hanson Could you attach your SBT build file?

Carolyn · ‎02-13-2017

@Eric Hanson Which repository are you getting the spark libraries from? Use the hortonworks repo. Check out this documentation on how to build spark streaming apps. It can be adapted to SBT an non-streaming apps. http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.5.3/bk_spark-component-guide/content/using-spark-streaming.html Also HDP 2.5 includes two different versions of spark. Check the settings for SPARK_HOME. For 1.6 use: exportSPARK_HOME=/usr/hdp/current/spark-client export SPARK_MAJOR_VERSION=1

Carolyn · ‎01-05-2017

@Qi Wang The connection to beeline is using an simple authentication with a user name and password. The server is configured with a different authentication mechanism. Perhaps you need to use kerberos to authenticate instead? sudo su - sales1 kdestroy beeline -u "jdbc:hive2://localhost:10000/default;principal=hive/$(hostname -f)@LAB.HORTONWORKS.NET"

Carolyn · ‎12-15-2016

@slachterman How do I add users in ambari in the sandbox? I log in as raj_ops but I don't see any way to add users. Maybe I need to log in as a different user? Also, how do Ranger and Ambari negotiate the internal users. For example, if I log into hive view as a local ambari user, how does it map that user to a ranger user? Do you have to sync with AD or unix to make that work?

Carolyn · ‎12-15-2016

I created a new internal user in Ranger. When I attempt to log in to ambari with that user, I get the following error message: "Unable to sign in. Invalid username/password combination." I went to ranger and changed the password to make sure it was correct. Then tried again but I still got the same error. Ranger is syncing to unix.

Carolyn · ‎11-22-2016

@milind pandit Follow the instructions in this article: https://linuxconfig.org/recover-reset-forgotten-linux-root-password When you get to the step with the mount instruction use mount -rw -o remount /-

Carolyn · ‎11-21-2016

@Raj B Here are the flume source types. In the documentation for each source type you will see the type Property defines the string to use in the SourceType field. https://flume.apache.org/FlumeUserGuide.html#flume-sources For example if look at JMS Source, the type property specifies the component type name is jms. HL7 is a data format but the source type for flume is a protocol that describes how the data is delivered. For example HL7 format data could be delivered using Kafka. If the HL7 data is already delivered using flume, check the config files to see what the source type value is.

Carolyn · ‎11-21-2016

@Raj B Check the value of the SourceType field in the ExecuteFlumeSource. The type should be valid source type, i.e. avro, thrift, netcat, etc. Check out the @Timothy Spann article on using flume with NiFi: https://community.hortonworks.com/articles/48271/using-apache-flume-sources-and-sinks-with-apache-n.html

Carolyn · ‎11-17-2016

Can NiFi handle authenticated calls to REST microservices? For example before calling a REST service, the client needs to call an authentication service to obtain a token or session id. The session token is then passed into a REST call to post the data. Is there any mechanism for maintaining the token and renewing it periodically?

Carolyn · ‎11-09-2016

I added an UpdateAttribute processor and set the mime.type Property to application/xml. The viewer was not able to render text/xml:

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