Seon Core environment variables

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Environment variables are created and/or set by all Seon binaries, which values are based on the configuration of Seon. These variables are:

The following environment variables are extracted form the global Seon configuration file (default: /etc/seon.conf):

  • Seon_DB_HOST
  • Seon_DB_USER
  • Seon_DB_PWD
  • Seon_DB_NAME
  • Seon_DB_SOCKET
  • Seon_DB_PORT
  • Seon_DB_TYPE: either "mysql", "DB2" or "sqlite3"



All processes started by Seon (event scripts, plugins, etc.) have access to these environment variables. The environment variable "Seon_CFGFILE" points to the absolute path to the Seon main configuration file. This has two effects:

  • you may start Seon programs in a shell where this variable is set without using the parameter "-C" for all binaries (because the environment variable points to the correct position of the configfile)
  • all subsequent processes started by Seon (like event scripts) don't have to bother about the given configfile (like plugins of Seon Enterprise).

Database performance benchmarking

Available in Seon 3 Core, an environment variable can be set to log all database access timing information into that given file:

Seon_DB_BENCHMARKLOG

You can set this variable to an absolute filename where Seon logs all innformation (example: "ksh" or "bash"):

export Seon_DB_BENCHMARKLOG=/tmp/db2perf.log

This file logs the connect and query time for every single database access, resulting in a fast growing file. The content if this file looks like this (using DB2 database abstraction layer, others like MySQL start with "MySQL"):

DB2 connect: 0.052482 seconds
DB2 SQL query: 0.126631 seconds
DB2 connect: 0.032447 seconds
DB2 SQL query: 0.004983 seconds
DB2 connect: 0.029555 seconds
DB2 SQL query: 0.004500 seconds
DB2 connect: 0.031012 seconds
DB2 SQL query: 0.001324 seconds