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04-29-2022
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08-03-2023
06:17 AM
@pierre , @joet
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08-03-2023
05:44 AM
Hi, We have a solution in our flow which is currently running on 1.16.3 and we are referencing parameters dynamically for some schema validations. Now we have upgraded NIFI to version 1.21.0 and this functionality of function "evaluateELString()" not working as expected. Example - Using above NIFI expression language, we used to reference parameters dynamically but now we are getting null values although parameter is not sensitive. I find out this was changed in NIFI version 1.19.0 to not expose sensitive parameters but why have they change it for all the parameters - NIFI-10674 I can see a JIRA raised for similar issue here - NIFI-11627 Can someone please help us over here ? I do not want to hardcode this thing as we have 10's of schemas in parameters and I do not want to hardcode for each one.
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Apache NiFi
04-29-2022
06:22 AM
We have a NIFI cluster which have 3 nodes. All the nodes were working fine earlier. But now if all 3 nodes are connected to cluster and we right click on NIFI UI canvas and select "Configure" then we are getting error - "An unexpected error has occurred. Please check the logs for additional details." Below are more details fetched from network tabs on inspection on chrome. The same error can be found if we access NIFI UI using any node's hostname - Request URL: https://<node1>:<port>/nifi-api/flow/process-groups/{process_group_id}/controller-services Request Method: GET Status Code: 500 Internal Server Error If we disconnect node 3 from cluster then we are able to click on "Configure" and list all controller services on NIFI UI. Issue seems to be with node 3. We have synced flow.xml.gz file from node2 to other node ie.node1, node3 and also restarted the NIFI. But still the issue is there. We have got this error in nifi-user.log - "o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred: java.lang.NullPointerException. Returning Internal Server Error response." Our authorizers.xml and users.xml files are having same content across all 3 nodes. There was no issue of CPU, heap or memory also. Everything seems idle on all the nodes. Please help us to resolve this issue.
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Apache NiFi