gavinchou commented on code in PR #47892:
URL: https://github.com/apache/doris/pull/47892#discussion_r1955072160
##########
be/src/io/cache/block_file_cache.cpp:
##########
@@ -971,12 +971,13 @@ bool BlockFileCache::try_reserve(const UInt128Wrapper&
hash, const CacheContext&
size_t max_size = queue.get_max_size();
auto is_overflow = [&] {
- return _disk_resource_limit_mode ? removed_size < size
- : cur_cache_size + size -
removed_size > _capacity ||
- (queue_size + size -
removed_size > max_size) ||
- (query_context_cache_size +
size -
- (removed_size +
ghost_remove_size) >
-
query_context->get_max_cache_size());
+ return (_disk_resource_limit_mode || _need_evict_cache_in_advance)
+ ? removed_size < size
+ : cur_cache_size + size - removed_size > _capacity ||
+ (queue_size + size - removed_size > max_size)
||
+ (query_context_cache_size + size -
+ (removed_size + ghost_remove_size) >
+ query_context->get_max_cache_size());
Review Comment:
break down to readable conditions. e.g.
```suggestion
bool insufficient_reclaimed = removed_size < size;
bool insufficient_global_remain = cur_cache_size + size -
removed_size > _capacity;
bool insufficient_queue_remain = queue_size + size - removed_size >
max_size;
bool insufficient_query_remain = query_context_cache_size + size -
(removed_size + ghost_remove_size) > query_context->get_max_cache_size();
bool need_evict = _disk_resource_limit_mode ||
_need_evict_cache_in_advance;
return need_evict ? insufficient_reclaimed
: insufficient_global_remain ||
insufficient_queue_remain ||
insufficient_query_remain;
```
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