vvivekiyer commented on code in PR #10373:
URL: https://github.com/apache/pinot/pull/10373#discussion_r1124906255
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pinot-core/src/main/java/org/apache/pinot/core/accounting/PerQueryCPUMemAccountantFactory.java:
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@@ -724,14 +745,14 @@ void killAllQueries() {
*/
private void killMostExpensiveQuery() {
if (!_aggregatedUsagePerActiveQuery.isEmpty() &&
_numQueriesKilledConsecutively >= _gcTriggerCount) {
- System.gc();
_numQueriesKilledConsecutively = 0;
+ System.gc();
try {
- Thread.sleep(_normalSleepTime);
+ Thread.sleep(_gcWaitTime);
} catch (InterruptedException ignored) {
}
_usedBytes = MEMORY_MX_BEAN.getHeapMemoryUsage().getUsed();
- if (_usedBytes < _criticalLevel) {
+ if (_usedBytes < _criticalLevelAfterGC) {
Review Comment:
Would this end up killing more queries than usual?
Let's say
criticalThreshold=95%
usedMemory=96%
CriticalLevelAFterGC=80%
After performing GC in L749, if the usedMemory=85%, we would end up killing
the most expensive query even though the criticalThreshold is 95%. Is that
expected?
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