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https://issues.apache.org/jira/browse/NIFI-3599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16402428#comment-16402428
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ASF GitHub Bot commented on NIFI-3599:
--------------------------------------
Github user mcgilman commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2497#discussion_r175201659
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/canvas/nf-connection-configuration.js
---
@@ -1272,11 +1301,9 @@
}
// initialize the connection dialog
- $.when(initializeSourceNewConnectionDialog(source),
initializeDestinationNewConnectionDialog(destination)).done(function () {
+ $.when(initializeSourceNewConnectionDialog(source),
initializeDestinationNewConnectionDialog(destination),
loadBackPressureDefaults()).done(function () {
--- End diff --
This approach is going to query for the backpressure defaults every time a
new connection is opened. Since these values are not changing, we just need to
load them once. If we end up using the existing /nifi-api/flow/config endpoint,
we won't need to query for these here at all. Instead, the default values can
be passed into the `nfConnectionConfiguration.init(...)` function. This
function is invoked inside of the response handler of the flow configuration
endpoint. Inside of the `init(...)` function we could just hold a reference to
these values that could be restored every time the new connection dialog is
opened.
> Add nifi.properties value to globally set the default backpressure size
> threshold for each connection
> -----------------------------------------------------------------------------------------------------
>
> Key: NIFI-3599
> URL: https://issues.apache.org/jira/browse/NIFI-3599
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Configuration
> Reporter: Jeremy Dyer
> Assignee: Michael Moser
> Priority: Major
>
> By default each new connection added to the workflow canvas will have a
> default backpressure size threshold of 10,000 objects. While the threshold
> can be changed on a connection level it would be convenient to have a global
> mechanism for setting that value to something other than 10,000. This
> enhancement would add a property to nifi.properties that would allow for this
> threshold to be set globally unless otherwise overridden at the connection
> level.
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