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fix: add sleep to avoid high CPU usage when Redis is unreachable in D… #1058

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fix: add sleep to avoid high CPU usage when Redis is unreachable in D… #1058

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7 changes: 7 additions & 0 deletions processor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,13 @@ func (p *processor) exec() {
if p.errLogLimiter.Allow() {
p.logger.Errorf("Dequeue error: %v", err)
}
// If Dequeue returns an error (e.g., Redis is unreachable),
// we should avoid busy-looping and consuming high CPU.
// Add a sleep here to slow down retry attempts.
// Without this, the processor will immediately retry Dequeue in a tight loop,
// causing high CPU usage when Redis is down.
jitter := rand.N(p.taskCheckInterval)
time.Sleep(p.taskCheckInterval/2 + jitter)
<-p.sema // release token
return
}
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