}
        try {
            if (!concurrencyLimiter.tryAcquire(getConcurrencyWaitTimeoutMs(), TimeUnit.MILLISECONDS)) {
                logger.warn("[LLM] Concurrency limit exceeded. name={}, maxConcurrent={}, waitTimeout={}ms", getName(),
                        getMaxConcurrentRequests(), getConcurrencyWaitTimeoutMs());
                throw new LlmException("Too many concurrent requests", LlmException.ERROR_RATE_LIMIT);