Kbase P150500: How is the "Repl Server behind Source DB by" value calculated in the dsrutil monitor utility?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
04/01/2010 |
|
Status: Verified
GOAL:
How is the "Repl Server behind Source DB by" value calculated in the dsrutil monitor utility?
GOAL:
How are the latency values calculated in the dsrutil monitor utility?
FACT(s) (Environment):
All Supported Operating Systems
OpenEdge 10.1C01 Service Pack
FIX:
During normal source database activity with OpenEdge Replication running, all AI blocks written to an AI extent are sent to the OpenEdge Replication server. The OpenEdge Replication server then sends the AI blocks to all configured OpenEdge Replication agents.
The "Repl Server behind Source DB by" value is the number of seconds difference between the timestamp of the last AI block write on the server and the timestamp of the last transaction end note or after image extent switch note received by the agent.
Normally, during periods of moderate activity, the latency value will be low due to the interleaved transactions and frequent transaction end notes received by the agent.
During periods of relatively little activity, larger latency times may be observed if only one large transaction is active and no AI extent switches occur. This does not mean that AI blocks are not received by the agent. However, until a transaction end note or AI extent switch note is received, the latency time reported will increase.