metric: Add Prometheus exporter module for Sentinel metrics (#3173)
This commit is contained in:
karl-sy
LearningGp
parent
1dea35095b
commit
2e18c3e916
|
|
@ -25,6 +25,7 @@
|
|||
<module>sentinel-datasource-eureka</module>
|
||||
<module>sentinel-annotation-cdi-interceptor</module>
|
||||
<module>sentinel-metric-exporter</module>
|
||||
<module>sentinel-prometheus-metric-exporter</module>
|
||||
</modules>
|
||||
|
||||
</project>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,102 @@
|
|||
# Sentinel Prometheus Exporter
|
||||
|
||||
Sentinel Prometheus Exporter is a module which provides the Sentinel metrics data for prometheus.
|
||||
|
||||
You can integrate it into your Sentinel application, and then get the sentinel metrics in your prometheus.
|
||||
|
||||
## How it works
|
||||
|
||||
when the prometheus server collect the sentinel metrics,it get metrics from sentinel logs
|
||||
|
||||
|
||||
## How to use
|
||||
|
||||
To use Sentinel Prometheus Exporter, you should add the following dependency:
|
||||
|
||||
### 1. add sentinel-prometheus-exporter
|
||||
|
||||
```xml
|
||||
<dependency>
|
||||
<groupId>com.alibaba.csp</groupId>
|
||||
<artifactId>sentinel-prometheus-metric-exporter</artifactId>
|
||||
<version>x.y.z</version>
|
||||
</dependency>
|
||||
```
|
||||
|
||||
### 2. add prometheus dependency
|
||||
|
||||
```xml
|
||||
<dependency>
|
||||
<groupId>io.prometheus</groupId>
|
||||
<artifactId>simpleclient</artifactId>
|
||||
<version>0.3.0</version>
|
||||
</dependency>
|
||||
```
|
||||
|
||||
```xml
|
||||
<dependency>
|
||||
<groupId>io.prometheus</groupId>
|
||||
<artifactId>simpleclient_httpserver</artifactId>
|
||||
<version>0.3.0</version>
|
||||
</dependency>
|
||||
```
|
||||
|
||||
### 3. set prometheus.yml with fetch config
|
||||
|
||||
```yaml
|
||||
scrape_configs:
|
||||
- job_name: 'sentinelMetrics'
|
||||
static_configs:
|
||||
- targets: ['localhost:9092']
|
||||
```
|
||||
|
||||
```yaml
|
||||
Note: the port needs to be the same as the value in the configuration (csp.sentinel.prometheus.fetch.port)
|
||||
```
|
||||
|
||||
## Params for exporter
|
||||
|
||||
you can set system params to control the exporter behavior
|
||||
|
||||
### 1.csp.sentinel.prometheus.fetch.port
|
||||
|
||||
the port for prometheus exporter,default 9092
|
||||
|
||||
### 2.csp.sentinel.prometheus.fetch.size
|
||||
|
||||
the max fetch nums for prometheus exporter,in case the memory is not enough,default 1024
|
||||
|
||||
### 3.csp.sentinel.prometheus.fetch.delay
|
||||
|
||||
the delay time for fetching , may be it is still do some statistics work according to the sliding window size when fetching,
|
||||
|
||||
so need to set the delay time to insure the accuracy.
|
||||
|
||||
unit: second
|
||||
|
||||
default: 0
|
||||
|
||||
### 4.csp.sentinel.prometheus.fetch.identify
|
||||
|
||||
set the resource which need to fetch,default null,fetch all resources
|
||||
|
||||
### 5.csp.sentinel.prometheus.fetch.types
|
||||
|
||||
the types need to fetch,such as passQps,concurrency
|
||||
|
||||
format: "xx|xx|xx"
|
||||
|
||||
default: "passQps|blockQps|exceptionQps|rt|concurrency"
|
||||
|
||||
you can reset the types as you need to,exm: "passQps|rt|concurrency|occupiedPassQps"
|
||||
|
||||
the type is same as the MetricNode class variables, with range:
|
||||
{"passQps","blockQps","successQps","exceptionQps","rt","occupiedPassQps","concurrency"}
|
||||
|
||||
### 6.csp.sentinel.prometheus.app
|
||||
|
||||
set the appName when do PromSQL
|
||||
|
||||
## how it looks
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project xmlns="http://maven.apache.org/POM/4.0.0"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<parent>
|
||||
<groupId>com.alibaba.csp</groupId>
|
||||
<artifactId>sentinel-parent</artifactId>
|
||||
<version>2.0.0-alpha</version>
|
||||
<relativePath>../../pom.xml</relativePath>
|
||||
</parent>
|
||||
|
||||
<artifactId>sentinel-prometheus-metric-exporter</artifactId>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>com.alibaba.csp</groupId>
|
||||
<artifactId>sentinel-core</artifactId>
|
||||
</dependency>
|
||||
|
||||
<dependency>
|
||||
<groupId>io.prometheus</groupId>
|
||||
<artifactId>simpleclient</artifactId>
|
||||
<version>0.3.0</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
|
||||
<dependency>
|
||||
<groupId>io.prometheus</groupId>
|
||||
<artifactId>simpleclient_httpserver</artifactId>
|
||||
<version>0.3.0</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
|
||||
<dependency>
|
||||
<groupId>junit</groupId>
|
||||
<artifactId>junit</artifactId>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
</project>
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
/*
|
||||
* Copyright 1999-2019 Alibaba Group Holding Ltd.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* https://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package com.alibaba.csp.sentinel.metric.prom;
|
||||
|
||||
/**
|
||||
* The{@link PromExporterInit} the Collector for prometheus exporter.
|
||||
*
|
||||
* @author karl-sy
|
||||
* @date 2023-08-08 09:30
|
||||
* @since 2.0.0
|
||||
*/
|
||||
public final class MetricConstants {
|
||||
|
||||
public static final String METRIC_HELP = "sentinel_metrics";
|
||||
|
||||
public static final String RESOURCE = "resource";
|
||||
|
||||
public static final String CLASSIFICATION = "classification";
|
||||
|
||||
public static final String METRIC_TYPE = "type";
|
||||
|
||||
public static final String PASS_QPS = "passQps";
|
||||
|
||||
public static final String BLOCK_QPS = "blockQps";
|
||||
|
||||
public static final String SUCCESS_QPS = "successQps";
|
||||
|
||||
public static final String EXCEPTION_QPS = "exceptionQps";
|
||||
|
||||
public static final String RT = "rt";
|
||||
|
||||
public static final String OCC_PASS_QPS = "occupiedPassQps";
|
||||
|
||||
public static final String CONCURRENCY = "concurrency";
|
||||
|
||||
private MetricConstants() {
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
/*
|
||||
* Copyright 1999-2021 Alibaba Group Holding Ltd.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package com.alibaba.csp.sentinel.metric.prom;
|
||||
|
||||
import com.alibaba.csp.sentinel.init.InitFunc;
|
||||
import com.alibaba.csp.sentinel.log.RecordLog;
|
||||
import com.alibaba.csp.sentinel.metric.prom.collector.SentinelCollector;
|
||||
import com.alibaba.csp.sentinel.metric.prom.config.PrometheusGlobalConfig;
|
||||
import io.prometheus.client.exporter.HTTPServer;
|
||||
|
||||
/**
|
||||
* The{@link PromExporterInit} the InitFunc for prometheus exporter.
|
||||
*
|
||||
* @author karl-sy
|
||||
* @date 2023-07-13 21:15
|
||||
* @since 2.0.0
|
||||
*/
|
||||
public class PromExporterInit implements InitFunc {
|
||||
|
||||
@Override
|
||||
public void init() throws Exception {
|
||||
HTTPServer server = null;
|
||||
try {
|
||||
new SentinelCollector().register();
|
||||
// 开启http服务供prometheus调用
|
||||
// 默认只提供一个接口 http://ip:port/metrics，返回所有指标
|
||||
int promPort = PrometheusGlobalConfig.getPromFetchPort();
|
||||
server = new HTTPServer(promPort);
|
||||
} catch (Throwable e) {
|
||||
RecordLog.warn("[PromExporterInit] failed to init prometheus exporter with exception:", e);
|
||||
}
|
||||
|
||||
HTTPServer finalServer = server;
|
||||
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
|
||||
if (finalServer != null) {
|
||||
finalServer.stop();
|
||||
}
|
||||
}));
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,127 @@
|
|||
/*
|
||||
* Copyright 1999-2021 Alibaba Group Holding Ltd.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package com.alibaba.csp.sentinel.metric.prom.collector;
|
||||
|
||||
import com.alibaba.csp.sentinel.config.SentinelConfig;
|
||||
import com.alibaba.csp.sentinel.log.RecordLog;
|
||||
import com.alibaba.csp.sentinel.metric.prom.MetricConstants;
|
||||
import com.alibaba.csp.sentinel.metric.prom.config.PrometheusGlobalConfig;
|
||||
import com.alibaba.csp.sentinel.metric.prom.types.GaugeMetricFamily;
|
||||
import com.alibaba.csp.sentinel.node.metric.MetricNode;
|
||||
import com.alibaba.csp.sentinel.node.metric.MetricSearcher;
|
||||
import com.alibaba.csp.sentinel.node.metric.MetricWriter;
|
||||
import com.alibaba.csp.sentinel.util.PidUtil;
|
||||
import io.prometheus.client.Collector;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* The{@link PromExporterInit} Collector for prometheus exporter.
|
||||
*
|
||||
* @author karl-sy
|
||||
* @date 2023-07-13 21:15
|
||||
* @since 2.0.0
|
||||
*/
|
||||
public class SentinelCollector extends Collector {
|
||||
|
||||
private final Object lock = new Object();
|
||||
|
||||
private static final int ONE_SECOND = 1000;
|
||||
private static final String appName = PrometheusGlobalConfig.getPromFetchApp();
|
||||
|
||||
private static final String[] types = PrometheusGlobalConfig.getPromFetchTypes();
|
||||
|
||||
private static final String identify = PrometheusGlobalConfig.getPromFetchIdentify();
|
||||
|
||||
private static final int fetchSize = PrometheusGlobalConfig.getPromFetchSize();
|
||||
|
||||
private static final int delayTime = PrometheusGlobalConfig.getPromFetchDelayTime();
|
||||
|
||||
private volatile MetricSearcher searcher;
|
||||
|
||||
private volatile Long lastFetchTime;
|
||||
|
||||
@Override
|
||||
public List<MetricFamilySamples> collect() {
|
||||
if (searcher == null) {
|
||||
synchronized (lock) {
|
||||
if (searcher == null) {
|
||||
searcher = new MetricSearcher(MetricWriter.METRIC_BASE_DIR,
|
||||
MetricWriter.formMetricFileName(SentinelConfig.getAppName(), PidUtil.getPid()));
|
||||
}
|
||||
RecordLog.warn("[SentinelCollector] init sentinel metrics searcher with appName:{}", appName);
|
||||
lastFetchTime = System.currentTimeMillis() / ONE_SECOND * ONE_SECOND;
|
||||
}
|
||||
}
|
||||
|
||||
List<MetricFamilySamples> list = new ArrayList<>();
|
||||
|
||||
long endTime = System.currentTimeMillis() / ONE_SECOND * ONE_SECOND - (long) delayTime * ONE_SECOND;
|
||||
try {
|
||||
List<MetricNode> nodes = searcher.findByTimeAndResource(lastFetchTime, endTime, identify);
|
||||
if(nodes == null){
|
||||
return list;
|
||||
}
|
||||
if(nodes.size() > fetchSize){
|
||||
nodes = nodes.subList(0,fetchSize);
|
||||
}
|
||||
GaugeMetricFamily metricFamily = new GaugeMetricFamily(appName, MetricConstants.METRIC_HELP,
|
||||
Arrays.asList(MetricConstants.RESOURCE, MetricConstants.CLASSIFICATION,
|
||||
MetricConstants.METRIC_TYPE));
|
||||
for (MetricNode node : nodes) {
|
||||
long recordTime = node.getTimestamp();
|
||||
for (String type : types) {
|
||||
double val = getTypeVal(node,type);
|
||||
metricFamily.addMetric(Arrays.asList(node.getResource(), String.valueOf(node.getClassification()),type), val,recordTime);
|
||||
}
|
||||
}
|
||||
list.add(metricFamily);
|
||||
} catch (Exception e) {
|
||||
RecordLog.warn("[SentinelCollector] failed to fetch sentinel metrics with exception:", e);
|
||||
}finally {
|
||||
lastFetchTime = endTime + ONE_SECOND;
|
||||
}
|
||||
|
||||
return list;
|
||||
}
|
||||
|
||||
public double getTypeVal(MetricNode node,String type){
|
||||
if(MetricConstants.PASS_QPS.equals(type)){
|
||||
return node.getPassQps();
|
||||
}
|
||||
if(MetricConstants.BLOCK_QPS.equals(type)){
|
||||
return node.getBlockQps();
|
||||
}
|
||||
if(MetricConstants.SUCCESS_QPS.equals(type)){
|
||||
return node.getSuccessQps();
|
||||
}
|
||||
if(MetricConstants.EXCEPTION_QPS.equals(type)){
|
||||
return node.getExceptionQps();
|
||||
}
|
||||
if(MetricConstants.RT.equals(type)){
|
||||
return node.getRt();
|
||||
}
|
||||
if(MetricConstants.OCC_PASS_QPS.equals(type)){
|
||||
return node.getOccupiedPassQps();
|
||||
}
|
||||
if(MetricConstants.CONCURRENCY.equals(type)){
|
||||
return node.getConcurrency();
|
||||
}
|
||||
return -1.0;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
/*
|
||||
* Copyright 1999-2021 Alibaba Group Holding Ltd.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package com.alibaba.csp.sentinel.metric.prom.config;
|
||||
|
||||
import com.alibaba.csp.sentinel.config.SentinelConfig;
|
||||
import com.alibaba.csp.sentinel.util.StringUtil;
|
||||
|
||||
/**
|
||||
* The config for prometheus exporter.
|
||||
*
|
||||
* @author karl-sy
|
||||
* @date 2023-07-13 21:15
|
||||
* @since 2.0.0
|
||||
*/
|
||||
public class PrometheusGlobalConfig {
|
||||
|
||||
public static final String PROM_FETCH_PORT = "csp.sentinel.prometheus.fetch.port";
|
||||
public static final String DEFAULT_PROM_FETCH_PORT = "9092";
|
||||
|
||||
public static final String PROM_FETCH_SIZE = "csp.sentinel.prometheus.fetch.size";
|
||||
public static final String DEFAULT_PROM_FETCH_SIZE = "1024";
|
||||
|
||||
public static final String PROM_FETCH_DELAY = "csp.sentinel.prometheus.fetch.delay";
|
||||
public static final String DEFAULT_PROM_FETCH_DELAY = "0";
|
||||
|
||||
public static final String PROM_FETCH_IDENTIFY = "csp.sentinel.prometheus.fetch.identify";
|
||||
|
||||
public static final String PROM_FETCH_TYPES = "csp.sentinel.prometheus.fetch.types";
|
||||
public static final String DEFAULT_PROM_FETCH_TYPES = "passQps|blockQps|exceptionQps|rt|concurrency";
|
||||
|
||||
public static final String PROM_APP = "csp.sentinel.prometheus.app";
|
||||
public static final String DEFAULT_PROM_APP = "SENTINEL_APP";
|
||||
|
||||
public static int getPromFetchPort() {
|
||||
String config = SentinelConfig.getConfig(PROM_FETCH_PORT);
|
||||
config = StringUtil.isNotBlank(config) ? config : DEFAULT_PROM_FETCH_PORT;
|
||||
return Integer.parseInt(config);
|
||||
}
|
||||
|
||||
public static int getPromFetchSize() {
|
||||
String config = SentinelConfig.getConfig(PROM_FETCH_SIZE);
|
||||
config = StringUtil.isNotBlank(config) ? config : DEFAULT_PROM_FETCH_SIZE;
|
||||
return Integer.parseInt(config);
|
||||
}
|
||||
|
||||
public static int getPromFetchDelayTime() {
|
||||
String config = SentinelConfig.getConfig(PROM_FETCH_DELAY);
|
||||
config = StringUtil.isNotBlank(config) ? config : DEFAULT_PROM_FETCH_DELAY;
|
||||
return Integer.parseInt(config);
|
||||
}
|
||||
|
||||
public static String getPromFetchIdentify() {
|
||||
return SentinelConfig.getConfig(PROM_FETCH_IDENTIFY);
|
||||
}
|
||||
|
||||
public static String[] getPromFetchTypes() {
|
||||
String config = SentinelConfig.getConfig(PROM_FETCH_TYPES);
|
||||
config = StringUtil.isNotBlank(config) ? config : DEFAULT_PROM_FETCH_TYPES;
|
||||
try {
|
||||
return config.split("\\|");
|
||||
}catch (Throwable e){
|
||||
return DEFAULT_PROM_FETCH_TYPES.split("\\|");
|
||||
}
|
||||
}
|
||||
|
||||
public static String getPromFetchApp() {
|
||||
String appName = SentinelConfig.getConfig(PROM_APP);
|
||||
if (appName == null) {
|
||||
appName = SentinelConfig.getAppName();
|
||||
}
|
||||
|
||||
if (appName == null) {
|
||||
appName = DEFAULT_PROM_APP;
|
||||
}
|
||||
appName = appName.replaceAll("\\.","_");
|
||||
appName = appName.replaceAll("-","_");
|
||||
return appName;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
/*
|
||||
* Copyright 1999-2021 Alibaba Group Holding Ltd.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package com.alibaba.csp.sentinel.metric.prom.types;
|
||||
|
||||
|
||||
import io.prometheus.client.Collector;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* The{@link SentinelCollector} the MetricFamilySamples for prometheus exporter.
|
||||
*
|
||||
* @author karl-sy
|
||||
* @date 2023-07-13 21:15
|
||||
* @since 2.0.0
|
||||
*/
|
||||
public class GaugeMetricFamily extends Collector.MetricFamilySamples {
|
||||
|
||||
private final List<String> labelNames;
|
||||
|
||||
public GaugeMetricFamily(String name, String help, double value) {
|
||||
super(name, Collector.Type.GAUGE, help, new ArrayList<Sample>());
|
||||
labelNames = Collections.emptyList();
|
||||
samples.add(new Sample(
|
||||
name,
|
||||
labelNames,
|
||||
Collections.<String>emptyList(),
|
||||
value));
|
||||
}
|
||||
|
||||
public GaugeMetricFamily(String name, String help, List<String> labelNames) {
|
||||
super(name, Collector.Type.GAUGE, help, new ArrayList<Sample>());
|
||||
this.labelNames = labelNames;
|
||||
}
|
||||
|
||||
public GaugeMetricFamily addMetric(List<String> labelValues, double value, long timestampMs) {
|
||||
if (labelValues.size() != labelNames.size()) {
|
||||
throw new IllegalArgumentException("Incorrect number of labels.");
|
||||
}
|
||||
samples.add(new Sample(name, labelNames, labelValues, value, timestampMs));
|
||||
return this;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1 @@
|
|||
com.alibaba.csp.sentinel.metric.prom.PromExporterInit
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
package com.alibaba.csp.sentinel.metric.prom.collector;
|
||||
|
||||
import com.alibaba.csp.sentinel.node.metric.MetricNode;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class SentinelCollectorTest {
|
||||
@Test
|
||||
public void testCollector(){
|
||||
SentinelCollector collector = new SentinelCollector();
|
||||
|
||||
MetricNode node = new MetricNode();
|
||||
node.setPassQps(10);
|
||||
double val = collector.getTypeVal(node,"passQps");
|
||||
Assert.assertEquals(val, 10,1e-4);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
package com.alibaba.csp.sentinel.metric.prom.types;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.util.Collections;
|
||||
|
||||
public class GaugeMetricFamilyTest {
|
||||
|
||||
@Test
|
||||
public void testGaugeMetricFamily(){
|
||||
|
||||
GaugeMetricFamily metricFamily = new GaugeMetricFamily("appName",
|
||||
"sentinel_metrics", Collections.singletonList("type"));
|
||||
metricFamily.addMetric(Collections.singletonList("rt"), 1.0,System.currentTimeMillis());
|
||||
Assert.assertEquals(metricFamily.samples.get(0).value, 1.0,1e-4);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue