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Do not report ERROR when sample rate equals 100

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This commit is contained in:
ZenoWang
2024-02-06 14:49:31 +00:00
committed by ob-robot
parent 1f1d5c08ae
commit c8ef409bf3
3710 changed files with 486984 additions and 3083329 deletions
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54
src/storage/ob_tenant_tablet_stat_mgr.cpp
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@ -522,20 +522,10 @@ void ObTenantSysLoadShedder::refresh_sys_load()
// do nothing
} else if (REACH_TENANT_TIME_INTERVAL(CPU_TIME_SAMPLING_INTERVAL)) {
load_shedding_factor_ = 1;
(void) refresh_cpu_utility();
int tmp_ret = OB_SUCCESS;
double max_cpu_cnt = 0;
double min_cpu_cnt = 0;
if (OB_TMP_FAIL(GCTX.omt_->get_tenant_cpu(MTL_ID(), min_cpu_cnt, max_cpu_cnt))) {
LOG_WARN_RET(tmp_ret, "failed to get tennant cpu cnt", "tenant_id", MTL_ID());
} else {
min_cpu_cnt_ = min_cpu_cnt;
max_cpu_cnt_ = max_cpu_cnt;
}
if (min_cpu_cnt_ > 0 && max_cpu_cnt_ > 0) {
(void) refresh_cpu_utility();
if (1 >= load_shedding_factor_) {
(void) refresh_cpu_usage();
}
}
}
@ -546,32 +536,46 @@ int ObTenantSysLoadShedder::refresh_cpu_utility()
int64_t curr_cpu_time = last_cpu_time_;
int64_t inc_cpu_time = 0;
int64_t physical_cpu_utility = 0;
double max_cpu_cnt = 0; // placeholder
if (OB_FAIL(GCTX.omt_->get_tenant_cpu_time(MTL_ID(), curr_cpu_time))) {
if (OB_FAIL(GCTX.omt_->get_tenant_cpu(MTL_ID(), min_cpu_cnt_, max_cpu_cnt))) {
LOG_WARN("failed to get tennant cpu cnt", K(ret));
} else if (OB_FAIL(GCTX.omt_->get_tenant_cpu_time(MTL_ID(), curr_cpu_time))) {
LOG_WARN("failed to get tennant cpu cnt", K(ret));
} else {
const int64_t curr_sample_time = ObTimeUtility::fast_current_time();
if (0 == last_sample_time_ || 0 == last_cpu_time_) {
if (0 == last_sample_time_) {
// first time sample, no need to calculate cpu utility
} else {
inc_cpu_time = curr_cpu_time - last_cpu_time_;
physical_cpu_utility = inc_cpu_time * 100 / (curr_sample_time - last_sample_time_);
}
last_sample_time_ = curr_sample_time;
if (physical_cpu_utility > max_cpu_cnt_ * 100) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("cpu utility unexpected bigger than cpu cnt", K(ret), K(max_cpu_cnt_),
K(physical_cpu_utility), K(inc_cpu_time), K(curr_sample_time), K(last_sample_time_));
} else if (physical_cpu_utility >= max_cpu_cnt_ * 100 * CPU_TIME_THRESHOLD) {
if (physical_cpu_utility >= min_cpu_cnt_ * CPU_UTIL_THRESHOLD) {
ATOMIC_STORE(&load_shedding_factor_, DEFAULT_LOAD_SHEDDING_FACTOR);
effect_time_ = ObTimeUtility::fast_current_time();
FLOG_INFO("[ADAPTIVE_SCHED] refresh cpu utility", K(ret), K(load_shedding_factor_), K(max_cpu_cnt_),
K(physical_cpu_utility), K(inc_cpu_time), K(curr_sample_time), K(last_sample_time_), K(curr_cpu_time), K(last_cpu_time_));
}
last_sample_time_ = curr_sample_time;
last_cpu_time_ = curr_cpu_time;
}
// debug log, remove later
FLOG_INFO("BatMan refresh cpu utility", K(ret), K(load_shedding_factor_), K(min_cpu_cnt_), K(inc_cpu_time), K(physical_cpu_utility));
return ret;
}
int ObTenantSysLoadShedder::refresh_cpu_usage()
{
int ret = OB_SUCCESS;
if (OB_FAIL(GCTX.omt_->get_tenant_cpu_usage(MTL_ID(), cpu_usage_))) {
LOG_WARN("failed to get tenant cpu usage", K(ret));
} else if (cpu_usage_ * 100 >= CPU_UTIL_THRESHOLD) {
effect_time_ = ObTimeUtility::fast_current_time();
ATOMIC_STORE(&load_shedding_factor_, DEFAULT_LOAD_SHEDDING_FACTOR);
}
// debug log, remove later
FLOG_INFO("BatMan refresh cpu usage", K(ret), K(load_shedding_factor_), "cpu_usage_percent", cpu_usage_ * 100 * 100);
return ret;
}