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Ryan Hendrickson commented on NIFI-10823: ----------------------------------------- 8195 created the issue in NiFi 1.14.0 > Backpressure Queue - Properties file vs. Canvas update, Properties file not > respected. > -------------------------------------------------------------------------------------- > > Key: NIFI-10823 > URL: https://issues.apache.org/jira/browse/NIFI-10823 > Project: Apache NiFi > Issue Type: Bug > Affects Versions: 1.14.0, 1.15.0, 1.16.0, 1.16.3 > Reporter: Ryan Hendrickson > Assignee: Mark Payne > Priority: Major > > I assigned this to Mark so he'd take notice since we were chatting about this > on the Apache NiFi Slack Channel: > [https://apachenifi.slack.com/archives/C0L9VCD47/p1668546036757219] > We have been setting the following two nifi.properties for quite some time... > * nifi.queue.backpressure.count=20000 > * nifi.queue.swap.threshold=20000 > Today we updated the dataflow on with a NiFi that can have a huge amount of > FlowFiles queue up if backpressure isn't set correctly. We realized that the > new relationships drawn on the canvas did not inherit the > nifi.queue.backpressure.count set in nifi.properties. (Discussion on Slack) > Hunting back, it looks like NIFI-8195 in NiFi 1.14.0 attempted to Migrate > backpressure settings from nifi.properties to the Process Groups in the UI. > > # It looks like in the Pull Request, it was intended to read the > nifi.properties file value and set that to the root process group value. > ## [https://github.com/apache/nifi/pull/5192,] > ## "verified the default values of the added elements are “0 sec” for > FlowFile Expiration, and obtained from nifi.properties for back pressure > settings" and > ## "The backpressure defaults from nifi.properties should only be used when > at the root level" > # The Migration Guidance from 1.14.0 doesn't say anything about the > nifi.properties `nifi.queue.backpressure.count` no longer being used. > [https://cwiki.apache.org/confluence/display/NIFI/Migration+Guidance] > # The core properties still have it listed: > [https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#core-properties] > > > Version: Apache NiFi 1.16.3 Stanealone and Cluster -- This message was sent by Atlassian Jira (v8.20.10#820010)