micrometer 有啥最佳实践吗

直接用 @Timed 注解很爽。 但是如果想要个性化配置呢，比如入参中的某个字段来分别统计分位数。还需要自己写一套吗？有最佳实践吗？如果 github 上有推荐的？

codex 写的关于分位数的那块代码如下： @Bean public MeterFilter supplierSearchDistributionFilter() { return new MeterFilter() { @Override public DistributionStatisticConfig configure(Meter.Id id, DistributionStatisticConfig config) { DistributionRule rule = DISTRIBUTION_RULES.get(id.getName()); if (rule == null) { return config; }

            DistributionStatisticConfig custom = rule.toConfig();
            //buildDistributionRules 默认值，application*.properties 的更优先
            return config.merge(custom);
        }
    };
}

private static Map<String, DistributionRule> buildDistributionRules() {
    Map<String, DistributionRule> rules = new HashMap<>();
    DistributionRule defaultLatencyRule = new DistributionRule(
            true,
            new double[]{0.5, 0.9, 0.95, 0.99},
            new double[]{
                    Duration.ofMillis(50).toNanos(),
                    Duration.ofMillis(100).toNanos(),
                    Duration.ofMillis(200).toNanos(),
                    Duration.ofMillis(300).toNanos(),
                    Duration.ofMillis(500).toNanos(),
                    Duration.ofSeconds(1).toNanos(),
                    Duration.ofSeconds(2).toNanos(),
                    Duration.ofSeconds(3).toNanos(),
                    Duration.ofSeconds(5).toNanos(),
                    Duration.ofSeconds(10).toNanos()
            },
            Duration.ofMillis(10).toNanos(),
            Duration.ofSeconds(10).toNanos()
    );
    //rules.put(SUPPLIER_SEARCH_METRIC, defaultLatencyRule);
    rules.put(XXX_METRIC, defaultLatencyRule);
    return Collections.unmodifiableMap(rules);
}

via V2EX - 技术 (author: kujo)