xSQL Runtime Options Settings

The xSQL configuration file can be used to define a number of parameters that correspond to eXtremeDB runtime options (set in C API applications by calling mco_runtime_setoption()).

For an overview see page Configuration File Parameters

The runtime_options section consists of a set of "name : value" pairs enclosed within braces. For example:

 
    runtime_options : {
        posix_shm_opt : [anonymous, shared]
    },
     
    ... 
     

The following tables define the possible options for the runtime_options section of the configuration file (the corresponding C API option value is specified in the comment):

Option name : example value	Comment
extheaps : 1,	MCO_RT_OPTION_EXTHEAPS, unsigned
windows_shm_opt : {...}	MCO_RT_WINDOWS_SHM_OPT Option name : example value Comment prefix : none, One of : global (MCO_RT_WINDOWS_SHM_PREFIX_GLOBAL), local (MCO_RT_WINDOWS_SHM_PREFIX_LOCAL), sessions (MCO_RT_WINDOWS_SHM_PREFIX_SESSIONS) none (MCO_RT_WINDOWS_SHM_PREFIX_NONE) sec_descr : empty, One of : empty (MCO_RT_WINDOWS_SHM_SEC_DESCR_EMPTY), null (MCO_RT_WINDOWS_SHM_SEC_DESCR_NULL) or sameuser (MCO_RT_WINDOWS_SHM_SEC_DESCR_SAMEUSER)
mark_last_obj : true,	MCO_RT_OPTION_MARK_LAST_OBJ, boolean
unix_shm_mask : 0666,	MCO_RT_OPTION_UNIX_SHM_MASK, unsigned
posix_shm_opt : [anonymous, shared]	MCO_RT_POSIX_SHM_OPT, combination of anonymous (MCO_RT_POSIX_SHM_ANONYMOUS) and shared (MCO_RT_POSIX_SHM_SHARED)
crc_algorithm	MCO_RT_CRC_ALGORITHM
max_patricia_depth	MCO_RT_MAX_PATRICIA_DEPTH
max_dynamic_pipes	MCO_RT_MAX_DYNAMIC_PIPES
class_load_merge	MCO_RT_OPTION_CLASS_LOAD_MERGE
datetime_precision	MCO_RT_OPTION_DATETIME_PRECISION