@rafy  Once you have created the certificates for your other two users as @DigitalPlumber suggested, you would need to connect to your NiFi as the admin user you setup during initial securing of your NiFi and these two new users via the NiFi global menu (upper right corner) --> Users.   Then you would need to authorize those new user identities against any policies needed for them to perform the actions you want them to be allowed.  https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#config-users-access-policies   Hope this helps, Matt ... View more

@Hashem1980  Neither the ConsumeIMAP or ConsumePOP3 NiFi processors support Oauth2 for authentication. NiFi does have an StandardOauth2AccessTokenProvider controller service.  I would recommend opening an Apache NiFi Jira asking to have Oauth2 via this existing controller service integrated in to these processors.  As an open source project contribution are always welcome. If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt ... View more

@shashikumar  NiFi only requires the the Java Runtime Environment (JRE).  Latest versions of NiFi support both Java 8 or Java 11: system_requirements    The JDK contains, in addition to the JRE, additional development tools like compilers, debuggers, etc.  These may be useful to you depending on whether or not you intend to compile java code within your dataflow (not a requirement of any components like processors, controller services, reporting tasks, etc included with NiFi) or create your own custom NiFi components. If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt ... View more

@Chakkara  Updating a parameter context is a multi command process. 1. Fist you must GET the current parameter context configuration: curl -k -X GET https://<hostname>:<port>/nifi-api/parameter-contexts/<parameter context UUID> --compressed       - This will return a potentially large json which will include the current revision, all the parameter contexts from that parameter context and all the referencing components.  Assuming your NIFi is secured, your'll also need to include a method of authentication (client certificate, bearer token) in the above request. 2. Next you will POST your update-request using detail from above json response in step 1. curl -k 'https://<hostname>:<port>/nifi-api/parameter-contexts/<PARAMETR Context UUID>/update-requests' --data-raw $'{"revision":{"version":<num from step 1>},"id":"<PARAMETR Context UUID>","uri":"https://<hostname>:<port>/nifi-api/parameter-contexts/<PARAMETR Context UUID>","permissions":{"canRead":true,"canWrite":true},"component":{"name":"param-test","description":"","parameters":[{"parameter":{"name":"<Parameter name>","sensitive":false,"value":"<new parameter value>","description":""}}],"boundProcessGroups":[{"revision":{"clientId":"edcad62f-0181-1000-2fc6-de0c25282a3b","version":<num from step 1>},"id":"70b33f0a-e362-1c0b-8147-8fada18d56bd","position":{"x":136,"y":-2456},"permissions":{"canRead":true,"canWrite":true},"component":{"id":"70b33f0a-e362-1c0b-8147-8fada18d56bd","parentGroupId":"7930f131-017b-1000-0000-00007ece6b9d","position":{"x":136,"y":-2456},"name":"Param2","comments":"","variables":{},"parameterContext":{"id":"<PARAMETR Context UUID>","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"flowfileConcurrency":"UNBOUNDED","flowfileOutboundPolicy":"STREAM_WHEN_AVAILABLE","runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"inputPortCount":0,"outputPortCount":0},"runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"parameterContext":{"id":"994938a5-0180-1000-0000-00007cbba46b","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"inputPortCount":0,"outputPortCount":0},{"revision":{"clientId":"edcad62f-0181-1000-2fc6-de0c25282a3b","version":2},"id":"edcb3ff7-0181-1000-0000-00004abfd1ed","position":{"x":-323.1760214048029,"y":-2454.121877860687},"permissions":{"canRead":true,"canWrite":true},"component":{"id":"edcb3ff7-0181-1000-0000-00004abfd1ed","parentGroupId":"7930f131-017b-1000-0000-00007ece6b9d","position":{"x":-323.1760214048029,"y":-2454.121877860687},"name":"param1","comments":"","variables":{},"parameterContext":{"id":"994938a5-0180-1000-0000-00007cbba46b","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"flowfileConcurrency":"UNBOUNDED","flowfileOutboundPolicy":"STREAM_WHEN_AVAILABLE","runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"inputPortCount":0,"outputPortCount":0},"runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"parameterContext":{"id":"994938a5-0180-1000-0000-00007cbba46b","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"inputPortCount":0,"outputPortCount":0},{"revision":{"version":0},"id":"7930f131-017b-1000-0000-00007ece6b9d","position":{"x":328,"y":400},"permissions":{"canRead":true,"canWrite":true},"component":{"id":"7930f131-017b-1000-0000-00007ece6b9d","versionedComponentId":"136b68f9-1621-366e-8e8a-1db651ad8808","parentGroupId":"e377355c-017a-1000-2658-01d1a778332f","position":{"x":328,"y":400},"name":"Matt\'s PG","comments":"","variables":{},"versionControlInformation":{"groupId":"7930f131-017b-1000-0000-00007ece6b9d","registryId":"e97b2503-017a-1000-0000-00000c0a8abc","registryName":"nifi-sme-75.novalocal","bucketId":"19f7633f-5c1d-4d80-9d0d-d95c7e4885f8","bucketName":"new-bucket","flowId":"6add76b8-e56b-4d36-99e2-8aba4f5a9c33","flowName":"Matts-PG","flowDescription":"","version":2,"state":"LOCALLY_MODIFIED","stateExplanation":"Local changes have been made"},"parameterContext":{"id":"<PARAMETR Context UUID>","permissions":{"canRead":true,"canWrite":true},"component":{"id":"994938a5-0180-1000-0000-00007cbba46b","name":"param-test"}},"flowfileConcurrency":"UNBOUNDED","flowfileOutboundPolicy":"STREAM_WHEN_AVAILABLE","runningCount":39,"stoppedCount":109,"invalidCount":74,"disabledCount":7,"activeRemotePortCount":0,"inactiveRemotePortCount":2,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"inputPortCount":0,"outputPortCount":0},"runningCount":39,"stoppedCount":109,"invalidCount":74,"disabledCount":7,"activeRemotePortCount":0,"inactiveRemotePortCount":2,"versionedFlowState":"LOCALLY_MODIFIED","upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"parameterContext":{"id":"<PARAMETR Context UUID>","permissions":{"canRead":true,"canWrite":true},"component":{"id":"994938a5-0180-1000-0000-00007cbba46b","name":"param-test"}},"inputPortCount":0,"outputPortCount":0},{"revision":{"clientId":"edcad62f-0181-1000-2fc6-de0c25282a3b","version":2},"id":"373a39ad-0443-10ec-9e85-69445fefe75e","position":{"x":-320,"y":-2216},"permissions":{"canRead":true,"canWrite":true},"component":{"id":"373a39ad-0443-10ec-9e85-69445fefe75e","parentGroupId":"7930f131-017b-1000-0000-00007ece6b9d","position":{"x":-320,"y":-2216},"name":"param3","comments":"","variables":{},"parameterContext":{"id":"994938a5-0180-1000-0000-00007cbba46b","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"flowfileConcurrency":"UNBOUNDED","flowfileOutboundPolicy":"STREAM_WHEN_AVAILABLE","runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"inputPortCount":0,"outputPortCount":0},"runningCount":2,"stoppedCount":0,"invalidCount":0,"disabledCount":0,"activeRemotePortCount":0,"inactiveRemotePortCount":0,"upToDateCount":0,"locallyModifiedCount":0,"staleCount":0,"locallyModifiedAndStaleCount":0,"syncFailureCount":0,"localInputPortCount":0,"localOutputPortCount":0,"publicInputPortCount":0,"publicOutputPortCount":0,"parameterContext":{"id":"994938a5-0180-1000-0000-00007cbba46b","permissions":{"canRead":true,"canWrite":true},"component":{"id":"<PARAMETR Context UUID>","name":"param-test"}},"inputPortCount":0,"outputPortCount":0}],"id":"<PARAMETR Context UUID>"}}' --compressed       - This will return the uri for this new update request.  A background process will take care of stopping changing, validating and starting all referenced components for the update parameter context. Assuming your NIFi is secured, your'll also need to include a method of authentication (client certificate, bearer token) in the above request. 3. Third you can execute a GET using the uri returned in step 2 to check progress of the request.   curl 'https://<hostname>:<port>/nifi-api/parameter-contexts/<PARAMETER CONTEXT UUID>/update-requests/<UPDATE REQUEST UUID form step 2 response>' -k --compressed      - This will return a json that will include within it the "percentCompleted".  You'll need to check this endpoint until it reports 100% complete. Assuming your NIFi is secured, your'll also need to include a method of authentication (client certificate, bearer token) in the above request. 4. Final step is a DELETE to remove the update request that is now completed.  Failing to do this leaves this request in NiFi Heap memory until a NiFi restart. curl -X DELETE 'https://<hostname>:<port>/nifi-api/parameter-contexts/<PARAMETER CONTEXT UUID>/update-requests/<UPDATE_REQUEST UUID from step 2 response>' -k --compressed      -    Assuming your NIFi is secured, your'll also need to include a method of authentication (client certificate, bearer token) in the above request. An easy way to help understand the --data-raw input needed for your specific update-request is to use the developer tolls found in most browsers to inspect/capture that actual rest-api calls made when you execute the actual action via the NiFi UI.   The browser developer tools will also allow you to right click on the triggering action and copy as curl.  You can then paste that action as a curl command in a terminal window and execute it yourself. Reference: https://nifi.apache.org/docs/nifi-docs/rest-api/index.html - specifically looking at the section for "Parameter Contexts" If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt ... View more

@rafy  The PutFile processor is used to write the content of FlowFiles to the local file system. It can not be used to write files tp a remote system.  The reason you are seeing no error is because the PutFile processor is creating that directory path using the ip address as a folder name on your local machine where NiFi is running and writing your FlowFile's content there. If you want to write a remote server, you would need to use a processor like the putSFTP processor assuming you have an SFTP server running on that remote server that your can successfully connect with. Another option would be to install NiFi on both servers and use NiFi's Site-to-SIte capability to send FlowFiles from one NiFi to another and then on the receiving NiFi use the putFile processor to write your FlowFile content to disk. If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt ... View more