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

Consider task count for ddl delay scheduling

Browse Source
This commit is contained in:
Hongqin-Li
2022-12-28 13:38:07 +00:00
committed by ob-robot
parent 02fedb0783
commit 6e762be4fb
4 changed files with 8 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/rootserver/ddl_task/ob_ddl_task.cpp
View File

@ -623,13 +623,15 @@ int ObDDLTask::push_execution_id()
return ret;
}
void ObDDLTask::calc_next_schedule_ts(int ret_code)
// The length of [min_dt, max_dt] controls the execution rate of ddl tasks.
void ObDDLTask::calc_next_schedule_ts(const int ret_code, const int64_t total_task_cnt)
{
if (OB_TIMEOUT == ret_code) {
const int64_t SEC = 1000000;
delay_schedule_time_ = std::min(delay_schedule_time_ * 6/5 + SEC/10, 30*SEC);
const int64_t max_delay = total_task_cnt * ObDDLUtil::get_ddl_rpc_timeout() * 10;
delay_schedule_time_ = std::min(delay_schedule_time_ * 6/5 + SEC/10, max_delay);
const int64_t max_dt = delay_schedule_time_;
const int64_t min_dt = std::max(0L, max_dt - 3*SEC);
const int64_t min_dt = max_dt / 2;
next_schedule_ts_ = ObTimeUtility::current_time() + ObRandom::rand(min_dt, max_dt);
} else {
delay_schedule_time_ = 0;