The EyeDB server has a number of configuration switches that allow to specify server parameters such as listening ports, directory for temporary files, databases directory...
Each EyeDB server configuration switch value is determined using, in this order:
eyedbctl options
server configuration file
environment variables
compile-time defaults
The server configuration file is a file that contains a list of configuration switches definition. The syntax of the configuration file is given informaly in Figure 2.1, “EyeDB server configuration file syntax”.
Figure 2.1. EyeDB server configuration file syntax
file : line ...
line : comment | definition
comment : # LINE
definition: VARIABLE = VALUE ;
A variable value can contain variable expansions; a variable expansion is a variable name surrounded by the character % as in: %variable%.
Example 2.9, “EyeDB server configuration file” gives an example of a EyeDB server configuration file.
Example 2.9. EyeDB server configuration file
# EyeDB server configuration file # # Bases directory databasedir = /home/francois/projects/eyedb/install/var/lib/eyedb/db; # Temporary files directory tmpdir = /home/francois/projects/eyedb/install/var/lib/eyedb/tmp; # Path to .so files sopath = /home/francois/projects/eyedb/install/lib/eyedb; # Default EYEDBDBM database default_dbm = /home/francois/projects/eyedb/install/var/lib/eyedb/db/dbmdb.dbs; # Granted EYEDBDBM database granted_dbm = %default_dbm%; # Default file mask default_file_mask = "0"; # Default file group default_file_group = ""; # Maximum server memory size in Mb maximum_memory_size = 0; # Server access file access_file = /home/francois/projects/eyedb/install/etc/eyedb/Access; # Smd connection port smdport = /home/francois/projects/eyedb/install/var/lib/eyedb/pipes/smd; # Server listen ports and sockets list listen = localhost:6240,/home/francois/projects/eyedb/install/var/lib/eyedb/pipes/eyedbd; # OQL files path oqlpath = /home/francois/projects/eyedb/install/lib/eyedb/oql
The EyeDB server will try to load one of the following configuration files, in this order:
the file specified by eyedbctl --server-conf option
the file specified by EYEDBDCONF environment variable
user configuration file: the file ~/.eyedb/eyedbd.conf where ~ represents the home directory of the user running the eyedbctl command
the file eyedbd.conf located in the directory specified by EYEDBCONFDIR environment variable
system-wide configuration file: the file eyedbd.conf located in directory sysconfdir/eyedbsysconfdir is the system configuration directory specified at compilation time using the configure script. By default, the system-wide configuration file is /etc/eyedb/eyedbd.conf
The list of configuration switches that are use by the EyeDB server is given in Table 2.1, “ List of EyeDB server configuration switches ”. This table gives the variable name that can appear in a configuration file, the corresponding eyedbctl option if applicable, the name of the environment variable and a description of the configuration switch meaning.
Table 2.1. List of EyeDB server configuration switches
| Configuration variable name | eyedbctl option | environment variable | Description |
|---|---|---|---|
| databasedir | --databasedir | EYEDBDATABASEDIR | databases directory |
| tmpdir | NA | EYEDBTMPDIR | temporary files directory |
| sopath | NA | EYEDBSOPATH | path to .so files |
| default_dbm | --default-dbm | EYEDBDEFAULT_DBM | default EYEDBDBM database |
| granted_dbm | --granted-dbm | EYEDBGRANTED_DBM | granted EYEDBDBM database |
| default_file_mask | --default-file-mask | EYEDBDEFAULT_FILE_MASK | default file mask |
| default_file_group | --default-file-group | EYEDBDEFAULT_FILE_GROUP | default file group |
| maximum_memory_size | --maximum-server-memory-size | EYEDBMAXIMUM_MEMORY_SIZE | maximum server memory size in Mb |
| access_file | NA | EYEDBACCESS_FILE | server access file |
| smdport | NA | EYEDBSMDPORT | smd connection port |
| listen | --listen | EYEDBLISTEN | server listen ports and sockets list |
| oqlpath | NA | EYEDBOQLPATH | OQL files path |