The advisory reports that a subscribing endpoint in the application process would have requested retransmission, but the request was suppressed. Suppression of retransmit requests can occur when a multicast transport enables retransmission control, and a subscriber misses packets in excess of a specified threshold.
Details
Retransmission is a normal occurrence for multicast transports. Retransmission advisories give applications access to data about network conditions.
When the subscribing endpoint of a multicast transport detects that it has missed one or more data packets, it requests that the publishing endpoint retransmit them.
If possible, the publishing endpoint complies. Otherwise data loss occurs.
This advisory has severity
WARN.
Actions
Report this advisory to an administrator.
Fields
| Field
|
Description
|
| name
|
RETRANSMISSION
|
| reason
|
RETRANSMISSION_SUPPRESSED
|
| endpoints
|
The string array value of this field lists the endpoints that suppressed retransmission requests.
|
|
aggregation_count
|
The long value of this field reports the cumulative number of
retransmission request suppression incidents during the time interval (see
aggregation_time).
The base library aggregates this count separately for each transport.
|
|
aggregation_time
|
The double floating point value, in seconds, of this field indicates the length of the time interval for aggregating the incidents that
aggregation_count reports.
The time interval ends shortly before the
timestamp.
|
| timestamp
|
The
DateTime value of this field indicates the time that the library generated the advisory.
Although
DateTime values can represent time with nanosecond precision, the actual resolution of the timestamp is only as fine-grained as the host computer's operating system supports.
|
Copyright © Cloud Software Group, Inc. All rights reserved.
