Michael Ho created IMPALA-8264:
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Summary: F0228 00:42:35.132514 139036 system-state-info.cc:102]
Check failed: total_tics > 0 (-4294962910 vs. 0)
Key: IMPALA-8264
URL: https://issues.apache.org/jira/browse/IMPALA-8264
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 3.2.0
Reporter: Michael Ho
Assignee: Lars Volker
When running 64-streams concurrent TPC-DS in debug builds at commit
681b256627e5e569778d4996bbdf530e30c528eb in a 140 node cluster, hit the
following DCHECK after close to 14 hours of running.
{noformat}
F0228 00:42:35.132514 139036 system-state-info.cc:102] Check failed: total_tics
> 0 (-4294962910 vs. 0)
{noformat}
{noformat}
void SystemStateInfo::ComputeCpuRatios() {
const CpuValues& cur = cpu_values_[cur_val_idx_];
const CpuValues& old = cpu_values_[1 - cur_val_idx_];
// Sum up all counters
int64_t cur_sum = accumulate(cur.begin(), cur.end(), 0);
int64_t old_sum = accumulate(old.begin(), old.end(), 0);
int64_t total_tics = cur_sum - old_sum;
// If less than 1/USER_HZ time has time has passed for any of the counters,
the ratio is
// zero (to avoid dividing by zero).
if (total_tics == 0) {
memset(&cpu_ratios_, 0, sizeof(cpu_ratios_));
return;
}
DCHECK_GT(total_tics, 0); <<----
{noformat}
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