hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

add system variables about auto dop

Browse Source
This commit is contained in:
obdev
2023-04-24 12:11:06 +00:00
committed by ob-robot
parent 8ac3b5df4a
commit 43877d47d6
6 changed files with 194 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
src/share/system_variable/ob_system_variable_init.cpp
View File

@ -2939,13 +2939,54 @@ static struct VarsInit{
ObSysVars[223].alias_ = "OB_SV__FORCE_ORDER_PRESERVE_SET" ;
}();
[&] (){
ObSysVars[224].info_ = "specifies whether automatic degree of parallelism will be enabled" ;
ObSysVars[224].name_ = "parallel_degree_policy" ;
ObSysVars[224].data_type_ = ObIntType ;
ObSysVars[224].enum_names_ = "[u'MANUAL', u'AUTO']" ;
ObSysVars[224].value_ = "0" ;
ObSysVars[224].flags_ = ObSysVarFlag::GLOBAL_SCOPE | ObSysVarFlag::SESSION_SCOPE | ObSysVarFlag::INFLUENCE_PLAN ;
ObSysVars[224].id_ = SYS_VAR_PARALLEL_DEGREE_POLICY ;
cur_max_var_id = MAX(cur_max_var_id, static_cast<int64_t>(SYS_VAR_PARALLEL_DEGREE_POLICY)) ;
ObSysVarsIdToArrayIdx[SYS_VAR_PARALLEL_DEGREE_POLICY] = 224 ;
ObSysVars[224].alias_ = "OB_SV_PARALLEL_DEGREE_POLICY" ;
}();
[&] (){
ObSysVars[225].info_ = "limits the degree of parallelism used by the optimizer when automatic degree of parallelism is enabled" ;
ObSysVars[225].name_ = "parallel_degree_limit" ;
ObSysVars[225].data_type_ = ObUInt64Type ;
ObSysVars[225].value_ = "0" ;
ObSysVars[225].min_val_ = "0" ;
ObSysVars[225].max_val_ = "9223372036854775807" ;
ObSysVars[225].flags_ = ObSysVarFlag::GLOBAL_SCOPE | ObSysVarFlag::SESSION_SCOPE | ObSysVarFlag::INFLUENCE_PLAN ;
ObSysVars[225].id_ = SYS_VAR_PARALLEL_DEGREE_LIMIT ;
cur_max_var_id = MAX(cur_max_var_id, static_cast<int64_t>(SYS_VAR_PARALLEL_DEGREE_LIMIT)) ;
ObSysVarsIdToArrayIdx[SYS_VAR_PARALLEL_DEGREE_LIMIT] = 225 ;
ObSysVars[225].alias_ = "OB_SV_PARALLEL_DEGREE_LIMIT" ;
}();
[&] (){
ObSysVars[226].info_ = "specifies the minimum execution time a table scan should have before it's considered for automatic degree of parallelism, variable unit is milliseconds" ;
ObSysVars[226].name_ = "parallel_min_scan_time_threshold" ;
ObSysVars[226].data_type_ = ObUInt64Type ;
ObSysVars[226].value_ = "1000" ;
ObSysVars[226].min_val_ = "10" ;
ObSysVars[226].max_val_ = "9223372036854775807" ;
ObSysVars[226].flags_ = ObSysVarFlag::GLOBAL_SCOPE | ObSysVarFlag::SESSION_SCOPE | ObSysVarFlag::INFLUENCE_PLAN ;
ObSysVars[226].id_ = SYS_VAR_PARALLEL_MIN_SCAN_TIME_THRESHOLD ;
cur_max_var_id = MAX(cur_max_var_id, static_cast<int64_t>(SYS_VAR_PARALLEL_MIN_SCAN_TIME_THRESHOLD)) ;
ObSysVarsIdToArrayIdx[SYS_VAR_PARALLEL_MIN_SCAN_TIME_THRESHOLD] = 226 ;
ObSysVars[226].alias_ = "OB_SV_PARALLEL_MIN_SCAN_TIME_THRESHOLD" ;
}();
if (cur_max_var_id >= ObSysVarFactory::OB_MAX_SYS_VAR_ID) {
HasInvalidSysVar = true;
}
}
}vars_init;
static int64_t var_amount = 224;
static int64_t var_amount = 227;
int64_t ObSysVariables::get_all_sys_var_count(){ return ObSysVarFactory::ALL_SYS_VARS_COUNT;}
ObSysVarClassType ObSysVariables::get_sys_var_id(int64_t i){ return ObSysVars[i].id_;}