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IDProjectCategoryView StatusLast Update
000677910000-014: PubSubApi Changepublic2021-06-09 19:02
ReporterBasavaraju.Vasamurthy@matrikonopc.com Assigned ToMatthias Damm  
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionfixed 
Summary0006779: [Spec part 14] : If the number of Events exceeds the buffer capability
Description

In specification it is not clear whether to Discard the oldest or newest event if there is an overflow in the event buffer.

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Fix Due Date

Activities

In specification, under writer group, (6.2.5.2 PublishingInterval) it says, “If the number of Events exceeds the buffer capability of the DataSetWriter, an Event of type EventQueueOverflowEventType is inserted into the buffer”. But it doesn’t specifies whether to remove the old or new.

So, could you please help me understand what should Publisher do when there is event queue overflow?

Matthias Damm

2021-06-07 16:06

developer   ~0014482

OPC 10000-14 - UA Specification Part 14 - PubSub 1.05.0 Draft33.docx

Updated text with the following clarification:
... an Event of type EventQueueOverflowEventType is inserted as last entry into the buffer and all Events that do not fit into the buffer are discarded.

Jim Luth

2021-06-09 19:02

administrator   ~0014535

Agreed to changes in Virtual F2F.

Issue History

Date Modified Username Field Change
2021-04-07 12:24 Basavaraju.Vasamurthy@matrikonopc.com New Issue
2021-04-08 15:45 Basavaraju.Vasamurthy@matrikonopc.com Note Added: 0014186
2021-04-08 15:50 Paul Hunkar Project Certification => 10000-014: PubSub
2021-04-08 15:50 Paul Hunkar Category Documentation Errata => Api Change
2021-04-13 16:27 Jim Luth Assigned To => Matthias Damm
2021-04-13 16:27 Jim Luth Status new => assigned
2021-06-07 16:06 Matthias Damm Status assigned => resolved
2021-06-07 16:06 Matthias Damm Resolution open => fixed
2021-06-07 16:06 Matthias Damm Note Added: 0014482
2021-06-09 19:02 Jim Luth Status resolved => closed
2021-06-09 19:02 Jim Luth Fixed in Version => 1.05
2021-06-09 19:02 Jim Luth Note Added: 0014535