Issue 11042: Clarify Writer Response to ACKNACK                                                                                                                                                                      (dds-interop-ftf)
Source: Real-Time Innovations (Mr. Kenneth Brophy, ken@rti.com ken.brophy@rti.com)
Nature: Uncategorized Issue
Severity: 
Summary: Source:
Real-Time Innovations, Inc. (Ken Brophy, ken@rti.com)
Summary:
Requirement 8.4.2.2.4 should be clarified: a writer does not only respond with data or a GAP as stated.  Rather, since a writer may have KEEP_LAST semantics and so may not offer the requested sample anymore, it may also respond with a new HB indicating the requested sample is no longer available.  This is the mechanism to trigger a reader's onDataLost callback. 

Resolution:
Clarify 8.4.2.2.4 to include a Writer's response of a HB to an ACKNACK requesting a sample that the writer does not have available.

Revised Text:
Revise first paragraph of 8.4.2.2.4:
When receiving an ACKNACK Message indicating a Reader is missing some data samples, the Writer must respond by either sending the missing data samples, sending a GAP when the sample is not relevant, or sending a Heartbeat when the sample is no longer available.

Resolution: see above
Revised Text: Revised Text:
Revise first paragraph of 8.4.2.2.4:
When receiving an ACKNACK Message indicating a Reader is missing some data samples, the Writer must respond by either sending the missing data samples, sending a GAP when the sample is not relevant, or sending a Heartbeat when the sample is no longer available.

Actions taken:
May 23, 2007: received issue
November 7, 2007: closed issue
Discussion: 
Resolution:
Clarify 8.4.2.2.4 to include a Writer's response of a HB to an ACKNACK requesting a sample that the writer does not have available.

End of Annotations:=====
s is issue # 11042

Clarify Writer Response to ACKNACK



Source:
Real-Time Innovations, Inc. (Ken Brophy, ken@rti.com)
Summary:
Requirement 8.4.2.2.4 should be clarified: a writer does not only respond with data or a GAP as stated.  Rather, since a writer may have KEEP_LAST semantics and so may not offer the requested sample anymore, it may also respond with a new HB indicating the requested sample is no longer available.  This is the mechanism to trigger a reader's onDataLost callback. 

Resolution:
Clarify 8.4.2.2.4 to include a Writer's response of a HB to an ACKNACK requesting a sample that the writer does not have available.

Revised Text:
Revise first paragraph of 8.4.2.2.4:
When receiving an ACKNACK Message indicating a Reader is missing some data samples, the Writer must respond by either sending the missing data samples, sending a GAP when the sample is not relevant, or sending a Heartbeat when the sample is no longer available.