Logging 弹簧批和防尘套千分尺
我有一个Spring批处理作业,它从DB读取记录,处理记录,然后写入另一个数据库。我想测量Spring批处理程序和Writer所花费的总时间/平均时间。根据文档-使用spring.batch prefix可以随时获取度量。如何将处理器和写入程序所用的时间记录到控制台。当我在作业侦听器结束时从Metrics registry打印度量结果时,我看到作业和步骤状态为Completed,但Timer stats度量显示为0。是否需要执行任何操作来启用计时器?我不打算将这些指标推送到普罗米修斯、阿特拉斯或任何其他登记处。因此,pom.xml中只添加了测微计核心依赖项。请建议如何记录不同组件所用的时间指标。任何例子都会非常有用 我看到作业和步骤状态为已完成,但计时器统计指标显示为0 这样做的原因是,默认情况下,以微米为单位的全局注册表是一个空的组合。您需要至少添加一个注册表以保留度量。看 我不打算将这些指标推送到普罗米修斯、阿特拉斯或任何其他登记处 如果希望使用度量而不将其推送到度量后端,则可以使用侦听器并直接从全局注册表获得访问权限。以下是一个快速示例,用于根据您的要求确定项目处理时间:Logging 弹簧批和防尘套千分尺,logging,spring-batch,micrometer,Logging,Spring Batch,Micrometer,我有一个Spring批处理作业,它从DB读取记录,处理记录,然后写入另一个数据库。我想测量Spring批处理程序和Writer所花费的总时间/平均时间。根据文档-使用spring.batch prefix可以随时获取度量。如何将处理器和写入程序所用的时间记录到控制台。当我在作业侦听器结束时从Metrics registry打印度量结果时,我看到作业和步骤状态为Completed,但Timer stats度量显示为0。是否需要执行任何操作来启用计时器?我不打算将这些指标推送到普罗米修斯、阿特拉斯或
import java.util.Arrays;
import java.util.List;
import io.micrometer.core.instrument.Measurement;
import io.micrometer.core.instrument.Meter;
import io.micrometer.core.instrument.Metrics;
import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
import org.springframework.batch.core.ItemProcessListener;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.item.ItemProcessor;
import org.springframework.batch.item.ItemReader;
import org.springframework.batch.item.ItemWriter;
import org.springframework.batch.item.support.ListItemReader;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@EnableBatchProcessing
public class MyJob {
@Bean
public ItemReader<Integer> itemReader() {
return new ListItemReader<>(Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9));
}
@Bean
public ItemProcessor<Integer, Integer> itemProcessor() {
return item -> {
System.out.println("processing item " + item);
Thread.sleep(2000);
return item + 1;
};
}
@Bean
public ItemWriter<Integer> itemWriter() {
return items -> {
for (Integer item : items) {
System.out.println("writing item = " + item);
}
};
}
@Bean
public Job job(JobBuilderFactory jobs, StepBuilderFactory steps) {
return jobs.get("job")
.start(steps.get("step")
.<Integer, Integer>chunk(5)
.reader(itemReader())
.processor(itemProcessor())
.writer(itemWriter())
.listener(new MonitoringItemProcessListener())
.build())
.build();
}
static class MonitoringItemProcessListener implements ItemProcessListener<Integer, Integer> {
@Override
public void beforeProcess(Integer item) {
}
@Override
public void afterProcess(Integer item, Integer result) {
List<Meter> meters = Metrics.globalRegistry.getMeters();
for (Meter meter : meters) {
if (meter.getId().getName().equals("spring.batch.item.process")) {
System.out.println("meter description = " + meter.getId().getDescription());
Iterable<Measurement> measurements = meter.measure();
for (Measurement measurement : measurements) {
System.out.println("measurement: statistic = " + measurement.getStatistic() + " | value = " + measurement.getValue());
}
}
}
}
@Override
public void onProcessError(Integer item, Exception e) {
}
}
public static void main(String[] args) throws Exception {
Metrics.addRegistry(new SimpleMeterRegistry());
ApplicationContext context = new AnnotationConfigApplicationContext(MyJob.class);
JobLauncher jobLauncher = context.getBean(JobLauncher.class);
Job job = context.getBean(Job.class);
jobLauncher.run(job, new JobParameters());
}
}
非常感谢…这很有帮助..我会尝试样本并让你知道..谢谢..我已经接受了答案..所以声誉分数很低。因此不允许我投票。
processing item 1
meter description = Item processing duration
measurement: statistic = COUNT | value = 1.0
measurement: statistic = TOTAL_TIME | value = 2.00080715
measurement: statistic = MAX | value = 2.00080715
processing item 2
meter description = Item processing duration
measurement: statistic = COUNT | value = 2.0
measurement: statistic = TOTAL_TIME | value = 4.003516877
measurement: statistic = MAX | value = 2.002709727
processing item 3
meter description = Item processing duration
measurement: statistic = COUNT | value = 3.0
measurement: statistic = TOTAL_TIME | value = 6.005287923
measurement: statistic = MAX | value = 2.002709727