Prometheus.ex v1.3.0 Prometheus.Contrib.Mnesia

Mnesia instrumentation helpers.

Summary

Macros

Returns sum of all mnesia files for the given table in bytes. Mnesia can create different files for each table:

  • .DAT - DETS files
  • .TMP - temp files
  • .DMP - dumped ets tables
  • .DCD - disc copies data
  • .DCL - disc copies log
  • .LOGTMP - disc copies log

Returns {pcount, ccount} tuple, where pcount is a number of participant transactions and ccount is a number of coordinator transactions. Can return {:undefined, :undefined} occasionally

Macros

table_disk_size(dir \\ quote() do :mnesia.system_info(:directory) end, table)

Returns sum of all mnesia files for the given table in bytes. Mnesia can create different files for each table:

  • .DAT - DETS files
  • .TMP - temp files
  • .DMP - dumped ets tables
  • .DCD - disc copies data
  • .DCL - disc copies log
  • .LOGTMP - disc copies log

More on Mnesia files can be found in

Mnesia System Information chapter of Mnesia User's Guide
tm_info()

Returns {pcount, ccount} tuple, where pcount is a number of participant transactions and ccount is a number of coordinator transactions. Can return {:undefined, :undefined} occasionally.