The issue seems to be due to the error documented in the Registry Admin Guide (https://nifi.apache.org/docs/nifi-registry-docs/html/administration-guide.html#system-requirements) if you don't have a JDK installed:   When running Registry with only a JRE you may encounter the following error as Flyway (database migration tool) attempts to utilize a resource from the JDK:   java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocation of init method failed; nested exception is org.flywaydb.core.api.FlywayException: Validate failed: Detected failed migration to version 1.3 (DropBucketItemNameUniqueness)   Try installing the  JDK , deleting the `database` directory that was created prior and then start the Registry. ... View more

Some more questions, It seems that the OU=NIFI is hardcoded, I see this when I look at the certificate? Even if I set the FQDN to something else, the certificate seems to come in with OU=NIFI? Do you need a certificate for the user and the server, IE are there 2 certificates to be imported? When you run a clustered NiFi operation, the UI what you use, is this one specific server, IOW, at the moment I have 4 NiFi Quick links where I can open the GUI from, but seeing that all the flows etc should be the same, should there only be one? So here you would only specify the "master" or entry GUI server? Any document links that works would be appreciated please! ... View more

Hi, @Jay Kumar SenSharma How can i use Ambari 2.6.0 with HDF 3.0.2, if supported version is different? Ambari is need Postgres 9.4, but HDF is need Postgres 9.5. https://docs.hortonworks.com/HDPDocuments/HDF3/HDF-3.0.2/bk_support-matrices/content/ch_matrices-hdf.html ... View more

Hive server interactive starts up as hive user, so the hive user needs access to the ambari agent tmp directory. so please provide permission as "chmod 777 /var/lib/ambari-agent/tmp" ... View more

Great. Glad you got to the bottom of it! ... View more