The reader server for an apply process dequeues messages from the queue. The reader server computes dependencies between LCRs and assembles messages into transactions. The reader server then returns the assembled transactions to the coordinator, which assigns them to idle apply servers.
This metric shows the rate at which messages are being dequeued by the reader server for the apply process since the last time the apply process was started.
The rest of the information in this section is only valid for this metric when it appears in either the Enterprise Manager Grid Control or the Enterprise Manager Database Control (if applicable).
The following table shows how often the metric's value is collected.
|
Target Version |
Collection Frequency |
|
All Versions |
Every 5 Minutes |
For this metric, the data source is Target database, gv$streams_apply_reader view.
None
Related Topics
About Alerts
About the Metric Detail Page
Editing Thresholds
Understanding Line Charts
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