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For each History Store, a folder will be created with the name of the History Store
Name | Data Type | Description |
---|---|---|
Database Size | Long | (Added 4.0.22) Created if the History Store type is Disk_Backed and shows the total size of the data tables used. This value may be smaller than the Disk Used metric as when flushed rows are marked for deletion they are only deleted from the H2 DB on its internal schedule. This is to minimize the writes on a flash/SSD drive. |
Disk Used | Long | Created if the History Store type is Disk_Backed and shows the memory used since last module restartsize of the database file. This parameter will never go to zero for the following reasons:
|
Memory Used | Long | Created if the History Store type is In_Memory and shows the memory used since last module restart |
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Under each of the History Store folders, for each Transmitter, a tag tree will be created with the tag path of GroupID > EdgeID and/or > DeviceID
Name | Data Type | Description |
---|---|---|
Metrics |
Stored |
Long | Number of Edge Node or Device level tag change events stored |
. For Disk_Backed History Store, this tag is updated every 30 seconds | ||
Records Stored | Long | Number of Edge Node or Device |
level records stored. For Disk_Backed History Store, this tag is updated every 30 seconds | ||
Metrics Percentage Used | Float | (Deprecated 4.0.19) Number of Edge Node or Device level tag change events stored as a percentage of the configured Edge Node or Device Tag Capacity |
Records Percentage Used | Float |
(Deprecated 4.0.19) Number of Edge Node or Device level |
tag change events stored as a percentage of the configured Edge Node or Device Record Capacity |