@renuu  Create your attributes how you need them to be in UpdateAttribute.   Next use attributesToJson to combine the attributes you want, and put them together into a single json object. In this processor set to flowfile-attribute if you need to use them as attributes later.   If you need to POST the json, use flowfile-content.   Once you have set your attributes in UpdateAttribute, test the flow and view the attributes, or the flowfile content.  You may notice the strings are escaped.  If they are escaped, and you need them to not be escaped, that is when you must use unescapeJson.  You can use unescapeJson anywhere you are allowed to use expression language. You could use it in another UpdateAttribute process to make a new attribute that is unescaped.  You can use it in replaceText if you want to unescape the content of the flowfile before posting.      ... View more

@stevenmatison : Thanks for the update!!   This issue got fixed by adding an new line in pg_hba.conf file   host  all  hive  192.168.0.109/32  trust   Restart postgresql ... View more

Thanks for your interest, the IP you suggested was actually the IP it was listening on before i tried changing it to 0.0.0.0 and 127.0.0.1.   And just while writing this comment, it got resolved by using one of the custom ports 60000.   Now my question is, why is it not working on port 9090? I have checked on windows port 9090 is bound by virtualbox as expected. Inside sandbox no process is running on port 9090. Don't have any firewall in HDP and firewall on my windows is disabled.  ... View more

After you posted this new issue, I created a sample like yours, and I had the same error you have above.  Then I added the DistributedMapCacheServer, enabled it, and re-tested my flow.   I created a template for DetectDuplicate which you can find here:   https://github.com/steven-dfheinz/NiFi-Templates/blob/master/DetectDuplicate_DistributedMapCache_Demo.xml   If you install the template, you still have to + ADD the Map Cache Server in the Template's Process Group Controller Services.  The NiFI Template system does not include the server (known bug), it only includes the client.   ... View more

I am able to resolve the issue. Update nifi authorizers to use ranger ldap rather than file based.  ... View more

I solved this one, it had to do with the hdp-select, it had to be removed (and then of course clean up the yum repos) from the manager and the agents and the same hdp-select to be install on all to resolve the repo issue. ... View more