Versions Compared

Old Version 31

changes.mady.by.user Gill Houghton

Saved on

compared with

New Version 32

changes.mady.by.user Wes Johnson

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Determining the settings for the MQTT Transmission History Store requires understanding the unique system properties at each Edge Node. There are a number of factors involved in determining how large the tag capacity can be including but not limited to system resources such as CPU, RAM (especially when using 'In-Memory'), Disk IOPS (if using 'Disk-Backed'), the nominal tag change rate (e.g. number of tags changing per second in the system), the flush rate, bandwidth availability, whether flushing in order vs asynchronously, etc.

Tip

Review the MQTT Transmission Transmitters and Tag Trees documentation for help in identifying your Edge Node(s) and Device(s).

If using UDTs you should include each member tag of a UDT in your count when determining the number of tags.

...