Replication subsystem tags
- Last UpdatedFeb 27, 2025
- 1 minute read
The Replication Service collects the following custom performance counters about its own operation, where N is a primary key of the tier-2 Historian in the Runtime database of the tier-1 Historian. These values are stored cyclically every 10 seconds.
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TagName |
Description |
|---|---|
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SysReplicationSummaryCalcQueueItemsTotal |
Current number of summary calculations stored in the summary calculation queue of all tier-2 historians. |
|
SysReplicationSummaryClientsTotal |
Current number of concurrent retrieval clients performing summary calculations on the tier-1 Historian for all tier-2 historians. |
|
SysReplicationSyncQueueItemsN |
Current number of items stored in the synchronization queue on the tier-2 Historian of key N. |
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SysReplicationSyncQueueItemsTotal |
Current number of items stored in the synchronization queue on the tier-1 for all tier-2 historians. |
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SysReplicationSyncQueueValuesPerSecN |
Average synchronization queue values per second sent to the tier-2 Historian of key N. |
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SysReplicationSyncQueueValuesPerSecTotal |
Average values processed by the replication synchronization queue processor for all tier-2 historians. |
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SysReplicationTotalTagsN |
Total number of tags being replicated to the tier-2 Historian of key N. |
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SysReplicationTotalValuesN |
Total number of values sent to the tier-2 Historian of key N since the startup of the replication service. |
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SysReplicationTotalValuesTotal |
Total number of values sent to all tier-2 historians since the startup of the replication service. |
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SysReplicationValuesPerSecN |
Average values per second sent to the tier-2 Historian of key N. |
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SysReplicationValuesPerSecTotal |
Average values per second sent to all tier-2 historians. |