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BUGFIX: make sure decay_factor_ is not 0 before use it

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obdev
2023-03-16 00:40:58 +00:00
committed by ob-robot
parent b9ae891ab1
commit 1e1dd2761a
1 changed files with 5 additions and 1 deletions
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6
src/share/allocator/ob_fifo_arena.cpp
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@ -74,7 +74,8 @@ int ObFifoArena::ObWriteThrottleInfo::check_and_calc_decay_factor(int64_t memsto
int ret = OB_SUCCESS;
if (memstore_threshold != memstore_threshold_
|| trigger_percentage != trigger_percentage_
|| alloc_duration != alloc_duration_) {
|| alloc_duration != alloc_duration_
|| decay_factor_ <= 0) {
memstore_threshold_ = memstore_threshold;
trigger_percentage_ = trigger_percentage;
alloc_duration_ = alloc_duration;
@ -383,6 +384,9 @@ int64_t ObFifoArena::calc_mem_limit(const int64_t cur_mem_hold, const int64_t tr
// there is no speed limit now
// we can get all the memory before speed limit
mem_can_be_assigned = trigger_mem_limit - cur_mem_hold;
} else if (throttle_info_.decay_factor_ <= 0) {
mem_can_be_assigned = 0;
LOG_WARN("we should limit speed, but the decay factor not calculate now", K(cur_mem_hold), K(trigger_mem_limit), K(dt));
} else {
init_seq = ((cur_mem_hold - trigger_mem_limit) + MEM_SLICE_SIZE - 1) / (MEM_SLICE_SIZE);
init_page_left_size = MEM_SLICE_SIZE - (cur_mem_hold - trigger_mem_limit) % MEM_SLICE_SIZE;