dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosNamingServiceWrapper.java [450:485]:
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                le = null;
                break;
            } catch (NacosException e) {
                le = e;
                logger.warn(
                        LoggerCodeConstants.REGISTRY_NACOS_EXCEPTION,
                        "",
                        "",
                        "Failed to request nacos naming server. "
                                + (times < retryTimes
                                        ? "Dubbo will try to retry in " + sleepMsBetweenRetries + ". "
                                        : "Exceed retry max times.")
                                + "Try times: "
                                + (times + 1),
                        e);
                if (times < retryTimes) {
                    try {
                        Thread.sleep(sleepMsBetweenRetries);
                    } catch (InterruptedException ex) {
                        logger.warn(
                                LoggerCodeConstants.INTERNAL_INTERRUPTED,
                                "",
                                "",
                                "Interrupted when waiting to retry.",
                                ex);
                        Thread.currentThread().interrupt();
                    }
                }
            }
        }
        if (le != null) {
            throw le;
        }
        if (times > 1) {
            logger.info("Failed to request nacos naming server for " + (times - 1) + " times and finally success. "
                    + "This may caused by high stress of nacos server.");
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dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosNamingServiceWrapper.java [496:531]:
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                le = null;
                break;
            } catch (NacosException e) {
                le = e;
                logger.warn(
                        LoggerCodeConstants.REGISTRY_NACOS_EXCEPTION,
                        "",
                        "",
                        "Failed to request nacos naming server. "
                                + (times < retryTimes
                                        ? "Dubbo will try to retry in " + sleepMsBetweenRetries + ". "
                                        : "Exceed retry max times.")
                                + "Try times: "
                                + (times + 1),
                        e);
                if (times < retryTimes) {
                    try {
                        Thread.sleep(sleepMsBetweenRetries);
                    } catch (InterruptedException ex) {
                        logger.warn(
                                LoggerCodeConstants.INTERNAL_INTERRUPTED,
                                "",
                                "",
                                "Interrupted when waiting to retry.",
                                ex);
                        Thread.currentThread().interrupt();
                    }
                }
            }
        }
        if (le != null) {
            throw le;
        }
        if (times > 1) {
            logger.info("Failed to request nacos naming server for " + (times - 1) + " times and finally success. "
                    + "This may caused by high stress of nacos server.");
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