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cache/dynacache: Prevent multiple concurrent resizes

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Updates #12129
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Bjørn Erik Pedersen 2024-02-23 17:23:37 +01:00
parent bf14d0cb26
commit 564bae06f6
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1 changed files with 8 additions and 1 deletions
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7
cache/dynacache/dynacache.go vendored
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@ -120,6 +120,7 @@ func (o OptionsPartition) CalculateMaxSize(maxSizePerPartition int) int {
// A dynamic partitioned cache. // A dynamic partitioned cache.
type Cache struct { type Cache struct {
mu sync.RWMutex mu sync.RWMutex
resizeMu sync.Mutex
partitions map[string]PartitionManager partitions map[string]PartitionManager
@ -231,6 +232,12 @@ func (c *Cache) Stop() {
} }
func (c *Cache) adjustCurrentMaxSize() { func (c *Cache) adjustCurrentMaxSize() {
if !c.resizeMu.TryLock() {
// Prevent multiple concurrent resizes.
return
}
defer c.resizeMu.Unlock()
c.mu.RLock() c.mu.RLock()
defer c.mu.RUnlock() defer c.mu.RUnlock()