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117 changes: 117 additions & 0 deletions
117
...l/trace-etl-server/src/main/java/com/xiaomi/hera/trace/etl/consumer/DataCacheService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package com.xiaomi.hera.trace.etl.consumer; | ||
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| import com.google.common.base.Stopwatch; | ||
| import com.google.common.collect.Sets; | ||
| import com.xiaomi.hera.trace.etl.constant.LockUtil; | ||
| import com.xiaomi.youpin.prometheus.client.Metrics; | ||
| import com.xiaomi.youpin.prometheus.client.MetricsManager; | ||
| import com.xiaomi.youpin.prometheus.client.Prometheus; | ||
| import io.prometheus.client.*; | ||
| import io.prometheus.client.exporter.common.TextFormat; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import okio.Buffer; | ||
| import org.springframework.stereotype.Service; | ||
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|
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| import java.io.ByteArrayOutputStream; | ||
| import java.io.OutputStreamWriter; | ||
| import java.lang.reflect.Field; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.CopyOnWriteArrayList; | ||
| import java.util.concurrent.TimeUnit; | ||
| import java.util.stream.Collectors; | ||
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|
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| /** | ||
| * @author [email protected] | ||
| * @date 2023/8/29 10:02 | ||
| */ | ||
| @Service | ||
| @Slf4j | ||
| public class DataCacheService { | ||
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| private CopyOnWriteArrayList<byte[]> data = new CopyOnWriteArrayList<>(); | ||
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| public byte[] getData() { | ||
| log.info("get data"); | ||
| Stopwatch sw = Stopwatch.createStarted(); | ||
| Buffer buffer = new Buffer(); | ||
| try { | ||
| data.forEach(it -> buffer.write(it)); | ||
| data.clear(); | ||
| return buffer.readByteArray(); | ||
| } finally { | ||
| log.info("get data use time:{}ms", sw.elapsed(TimeUnit.MILLISECONDS)); | ||
| buffer.clear(); | ||
| } | ||
| } | ||
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| public void cacheData() { | ||
| log.info("cache data"); | ||
| Stopwatch sw = Stopwatch.createStarted(); | ||
| synchronized (LockUtil.lock) { | ||
| List<String> list = new ArrayList<>(); | ||
| CollectorRegistry registry = CollectorRegistry.defaultRegistry; | ||
| try { | ||
| Field field = registry.getClass().getDeclaredField("namesToCollectors"); | ||
| field.setAccessible(true); | ||
| Map<String, Collector> namesToCollectors = (Map<String, Collector>) field.get(registry); | ||
| list = namesToCollectors.keySet().stream() | ||
| .filter(it -> !it.endsWith("created")) | ||
| .collect(Collectors.toList()); | ||
| } catch (Exception e) { | ||
| log.info("export metrics error : ", e); | ||
| } | ||
| try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); OutputStreamWriter writer = new OutputStreamWriter(baos)) { | ||
| TextFormat.writeFormat(TextFormat.CONTENT_TYPE_004, writer, registry.filteredMetricFamilySamples(Sets.newHashSet(list))); | ||
| writer.flush(); | ||
| byte[] bytes = baos.toByteArray(); | ||
| this.data.add(bytes); | ||
| } catch (Throwable ex) { | ||
| log.error(ex.getMessage()); | ||
| } finally { | ||
| clearMetrics(); | ||
| } | ||
| } | ||
| log.info("cache data use time:{}ms", sw.elapsed(TimeUnit.MILLISECONDS)); | ||
| } | ||
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| private void clearMetrics() { | ||
| try { | ||
| MetricsManager gMetricsMgr = Metrics.getInstance().gMetricsMgr; | ||
| if (gMetricsMgr instanceof Prometheus) { | ||
| Prometheus prometheus = (Prometheus) gMetricsMgr; | ||
| Map<String, Object> prometheusMetrics = prometheus.prometheusMetrics; | ||
| clearTypeMetrics(prometheusMetrics); | ||
| prometheus.prometheusMetrics.clear(); | ||
| prometheus.prometheusTypeMetrics.clear(); | ||
| } | ||
| } catch (Exception e) { | ||
| log.error("clear metrics error", e); | ||
| } | ||
| } | ||
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| private void clearTypeMetrics(Map<String, Object> prometheusMetrics) { | ||
| for (String key : prometheusMetrics.keySet()) { | ||
| Object o = prometheusMetrics.get(key); | ||
| if (o instanceof Counter) { | ||
| Counter counter = (Counter) o; | ||
| CollectorRegistry.defaultRegistry.unregister(counter); | ||
| } else if (o instanceof Gauge) { | ||
| Gauge gauge = (Gauge) o; | ||
| gauge.clear(); | ||
| CollectorRegistry.defaultRegistry.unregister(gauge); | ||
| } else if (o instanceof Histogram) { | ||
| Histogram histogram = (Histogram) o; | ||
| histogram.clear(); | ||
| CollectorRegistry.defaultRegistry.unregister(histogram); | ||
| } else { | ||
| log.error("metrics : " + key + " Type conversion failed, original type : " + o.getClass().getName()); | ||
| } | ||
| } | ||
| } | ||
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|
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| } |
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