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Appendix: Environment Variables

Topic

Reserved Environment Variables

Omnidex reserves some environment variables for its own use. Some of required, but most are optional. These variables either point to the location of the software or configure aspects of the software.

Required Environment Variables

OMNIDEX_HOME

OMNIDEX_HOME points to the root directory of the Omnidex server software.

Unix
export OMNIDEX_HOME="/omnidex"
Windows
set OMNIDEX_HOME=c:\program files\omnidex 5.1

System Environment Variables

PATH

PATH points to the directory where the Omnidex executables reside. This variable is a system variable, and is not Omnidex-specific. The system PATH variable is likely to contain other paths. Be sure not to override the existing setting by appending the Omnidex executable path to the end of the existing setting.

If the PATH is not set, users will either be required to run all Omnidex executables from the directory in which the executable resides or must pass the fully qualified path to the executable.

UNIX
export PATH="/omnidex/bin:$PATH"
Windows
set PATH="c:\Program Files\Omnidex 5.1\bin";%PATH%
LD_LIBRARY_PATH

LD_LIBRARY_PATH points to the directory where shared libraries reside. This variable is a system variable, and is not Omnidex-specific. LD_LIBRARY_PATH is only used on UNIX operating systems.

UNIX
export LD_LIBRARY_PATH="/omnidex/lib"
TMPDIR

TMPDIR points to a directory where Omnidex temporary files are built. This variable is not Omnidex-specific on UNIX, but is not frequently used on Microsoft Windows.

It is recommended that TMPDIR be set to a directory with plenty of available disk space, especially when building Omnidex indexes. It is also recommended that TMPDIR be placed on a separate drive, and preferably a separate disk controller, from the underlying data and the Omnidex index files.

UNIX
export TMPDIR="/temp"
Windows
set TMPDIR=d:\temp
CLASSPATH

CLASSPATH points to the directory where the Omnidex.jar file resides and is required for Java development on all platforms. This variable is a system variable, and is not Omnidex-specific. The system CLASSPATH variable is likely to contain other paths. Be sure not to override the existing setting by appending the Omnidex executable path to the end of the existing setting.

Omnidex.jar is located in the bin subdirectory of the Omnidex root directory on the server, and in the lib subdirectory of the Omnidex Client root directory on the client machine.

UNIX
export CLASSPATH="/omnidex/bin/Omnidex.jar:$CLASSPATH"
Windows
set CLASSPATH="c:\Program Files\Omnidex 5.1\bin\Omnidex.jar";%CLASSPATH%

Configuration Environment Variables

OMNIDEX_DEBUG

The OMNIDEX_DEBUG variable controls Omnidex debugging and is described in Omnidex Debugging.

OMNIDEX_QUALIFICATION_THRESHOLD
OMNIDEX_AGGREGATION_THRESHOLD
OMNIDEX_DATE_FORMAT
OMNIDEX_TIME_FORMAT
OMNIDEX_DATETIME_FORMAT
ODXSQLINIT
ODXSQLHISTORY

Additional Resources

See also:

 
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appendix/reference/envvar/reserved.1300200702.txt.gz ยท Last modified: 2016/06/28 22:38 (external edit)