mcgilman commented on a change in pull request #3281: NIFI-5986 Adding "Stop &
Configure" button functionality to Processor…
URL: https://github.com/apache/nifi/pull/3281#discussion_r252844963
##########
File path:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/nf-processor-details.js
##########
@@ -274,6 +280,82 @@
}
}];
+ // determine if we should show the Stop & Configure button
+ if (top === window &&
+ nfCommon.isDefinedAndNotNull(processor.state) &&
+ nfCommon.isDefinedAndNotNull(processorResponse.uri) &&
+ nfCommon.isDefinedAndNotNull(nfProcessor) &&
+ nfCommon.isDefinedAndNotNull(nfProcessorConfiguration)
) {
+
+ //Add in the Stop & Configure button
+ buttons.splice(1,0,{
+ buttonText: ' Stop & Configure',
+ clazz: 'fa fa-stop button-icon auto-width',
+ color: {
+ base: '#E3E8EB',
+ hover: '#C7D2D7',
+ text: '#813131'
+ },
+ disabled : function(){
+ return !( processor.state == "RUNNING" &&
+ (processorResponse.permissions.canWrite ||
+
processorResponse.operatePermissions.canWrite) );
+ },
+ handler: {
+ click: function () {
+
+
$(this).find('.fa-stop').addClass('disabled-button'); //disable the Stop &
Configure button
+
+ var showConfig = function(data) {
+
nfProcessorConfiguration.showConfiguration({
+ datum : function(){return data},
+ classed : function(t){return
(t=='processor')}
+ });
+
setTimeout(function(){$('#processor-details').modal('hide');},100);
+ }
+
+ $.ajax({
+ type: 'PUT',
+ url: processorResponse.uri + '/run-status',
+ data: JSON.stringify({
+ 'revision':
processorResponse.revision,
+ 'state': 'STOPPED'
+ }),
+ dataType: 'json',
+ contentType: 'application/json'
+ }).done(function (data) {
+
+ nfProcessor.set(data);
+
if(data.status.aggregateSnapshot.activeThreadCount > 0) {
+ nfDialog.showYesNoDialog({
+ headerText: 'Terminate active
threads?',
+ dialogContent: 'There are
currently active threads '+
+ 'present for this processor,
do you wish to terminate them?',
+ noHandler: function () {
+ //close the dialog
+ },
+ yesHandler: function () {
+
+ //send the terminate call
+ $.ajax({
+ type: 'DELETE',
+ url: data.uri +
'/threads',
+ dataType: 'json',
+ contentType:
'application/json'
+ }).done(function (data) {
+ showConfig(data);
+
}).fail(nfErrorHandler.handleAjaxError);
Review comment:
I don't think we should jump to terminate threads so quickly. Based on the
commentary here already, I think you guys are on the same page. We should
promote graceful stopping of the processors. The thread termination is in place
for situations where a Processor is not relinquishing a thread which is
preventing subsequent modifications. The solution here should unschedule the
processor and then wait for the executing threads to complete. I could get
behind something that would offer the terminate option only when the threads
are not completely on their own.
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