前言

spring-boot作为一个长时间运行的服务，需要也应该能采集到一些指标来反映系统自身的运行状态。下面就spring-boot输出的一些指标分类说明。

依赖

spring-boot开启指标采集需要加入prometheus依赖。

指标处理

name	type	data
http_server_requests_seconds	summary	http_server_requests_seconds_count{exception=“None”,method=“GET”,outcome=“SUCCESS”,status=“200”,uri=“/actuator/prometheus”,} 27.0 http_server_requests_seconds_sum{exception=“None”,method=“GET”,outcome=“SUCCESS”,status=“200”,uri=“/actuator/prometheus”,} 0.588996633
http_server_requests_seconds_max	gauge	http_server_requests_seconds_max{exception=“None”,method=“GET”,outcome=“SUCCESS”,status=“200”,uri=“/actuator/prometheus”,} 0.0
jvm_buffer_count_buffers	gauge	jvm_buffer_count_buffers{id=“direct”,} 14.0 jvm_buffer_count_buffers{id=“mapped”,} 0.0
jvm_buffer_memory_used_bytes	gauge	jvm_buffer_memory_used_bytes{id=“direct”,} 84505.0 jvm_buffer_memory_used_bytes{id=“mapped”,} 0.0
jvm_buffer_total_capacity_bytes	gauge	jvm_buffer_total_capacity_bytes{id=“direct”,} 84504.0 jvm_buffer_total_capacity_bytes{id=“mapped”,} 0.0
jvm_classes_loaded_classes	gauge	jvm_classes_loaded_classes 20253.0
jvm_classes_unloaded_classes_total	counter	jvm_classes_unloaded_classes_total 0.0
jvm_gc_live_data_size_bytes	gauge	jvm_gc_live_data_size_bytes 0.0
jvm_gc_max_data_size_bytes	gauge	jvm_gc_max_data_size_bytes 0.0
jvm_gc_memory_allocated_bytes_total	counter	jvm_gc_memory_allocated_bytes_total 2.7926361312E10
jvm_gc_memory_promoted_bytes_total	counter	jvm_gc_memory_promoted_bytes_total 9.8676712E7
jvm_gc_pause_seconds	summary	jvm_gc_pause_seconds_count{action=“end of minor GC”,cause=“Allocation Failure”,} 29.0 jvm_gc_pause_seconds_sum{action=“end of minor GC”,cause=“Allocation Failure”,} 0.627
jvm_gc_pause_seconds_max	gauge	jvm_gc_pause_seconds_max{action=“end of minor GC”,cause=“Allocation Failure”,} 0.0
jvm_memory_committed_bytes	gauge	jvm_memory_committed_bytes{area=“heap”,id=“PS Survivor Space”,} 2.6738688E7 jvm_memory_committed_bytes{area=“heap”,id=“PS Old Gen”,} 1.073741824E9 jvm_memory_committed_bytes{area=“heap”,id=“PS Eden Space”,} 1.018167296E9 jvm_memory_committed_bytes{area=“nonheap”,id=“Metaspace”,} 1.1665408E8 jvm_memory_committed_bytes{area=“nonheap”,id=“Code Cache”,} 5.4460416E7 jvm_memory_committed_bytes{area=“nonheap”,id=“Compressed Class Space”,} 1.5204352E7
jvm_memory_max_bytes	gauge	jvm_memory_max_bytes{area=“heap”,id=“PS Survivor Space”,} 2.6738688E7 jvm_memory_max_bytes{area=“heap”,id=“PS Old Gen”,} 1.073741824E9 jvm_memory_max_bytes{area=“heap”,id=“PS Eden Space”,} 1.021837312E9 jvm_memory_max_bytes{area=“nonheap”,id=“Metaspace”,} 5.36870912E8 jvm_memory_max_bytes{area=“nonheap”,id=“Code Cache”,} 2.5165824E8 jvm_memory_max_bytes{area=“nonheap”,id=“Compressed Class Space”,} 1.073741824E9
jvm_memory_used_bytes	gauge	jvm_memory_used_bytes{area=“heap”,id=“PS Survivor Space”,} 950272.0 jvm_memory_used_bytes{area=“heap”,id=“PS Old Gen”,} 9.8824184E7 jvm_memory_used_bytes{area=“heap”,id=“PS Eden Space”,} 2.52719712E8 jvm_memory_used_bytes{area=“nonheap”,id=“Metaspace”,} 1.1141044E8 jvm_memory_used_bytes{area=“nonheap”,id=“Code Cache”,} 5.4003136E7 jvm_memory_used_bytes{area=“nonheap”,id=“Compressed Class Space”,} 1.4348728E7
jvm_threads_daemon_threads	gauge	jvm_threads_daemon_threads 76.0
jvm_threads_live_threads	gauge	jvm_threads_live_threads 145.0
jvm_threads_peak_threads	gauge	jvm_threads_peak_threads 153.0
jvm_threads_states_threads	gauge	jvm_threads_states_threads{state=“runnable”,} 26.0 jvm_threads_states_threads{state=“blocked”,} 0.0 jvm_threads_states_threads{state=“waiting”,} 93.0 jvm_threads_states_threads{state=“timed-waiting”,} 26.0 jvm_threads_states_threads{state=“new”,} 0.0 jvm_threads_states_threads{state=“terminated”,} 0.0
logback_events_total	counter	logback_events_total{level=“warn”,} 4.0 logback_events_total{level=“debug”,} 0.0 logback_events_total{level=“error”,} 0.0 logback_events_total{level=“trace”,} 0.0 logback_events_total{level=“info”,} 76.0
process_cpu_usage	gauge	process_cpu_usage 1.0818998160770312E-4
process_files_max_files	gauge	process_files_max_files 1048576.0
process_files_open_files	gauge	process_files_open_files 186.0
process_start_time_seconds	gauge	process_start_time_seconds 1.64880968199E9
process_uptime_seconds	gauge	process_uptime_seconds 95315.395
rabbitmq_acknowledged_published_total	counter	rabbitmq_acknowledged_published_total{name=“rabbit”,} 0.0
rabbitmq_acknowledged_total	counter	rabbitmq_acknowledged_total{name=“rabbit”,} 126.0
rabbitmq_channels	gauge	rabbitmq_channels{name=“rabbit”,} 5.0
rabbitmq_connections	gauge	rabbitmq_connections{name=“rabbit”,} 2.0
rabbitmq_consumed_total	counter	rabbitmq_consumed_total{name=“rabbit”,} 126.0
rabbitmq_failed_to_publish_total	counter	rabbitmq_failed_to_publish_total{name=“rabbit”,} 0.0
rabbitmq_not_acknowledged_published_total	counter	rabbitmq_not_acknowledged_published_total{name=“rabbit”,} 0.0
rabbitmq_published_total	counter	rabbitmq_published_total{name=“rabbit”,} 126.0
rabbitmq_rejected_total	counter	rabbitmq_rejected_total{name=“rabbit”,} 0.0
rabbitmq_unrouted_published_total	counter	rabbitmq_unrouted_published_total{name=“rabbit”,} 0.0
spring_integration_channels	gauge	spring_integration_channels 10.0
spring_integration_handlers	gauge	spring_integration_handlers 10.0
spring_integration_send_seconds	summary	spring_integration_send_seconds_count{exception=“none”,name=“unknown”,result=“success”,type=“handler”,} 126.0 spring_integration_send_seconds_sum{exception=“none”,name=“unknown”,result=“success”,type=“handler”,} 4.624411586 spring_integration_send_seconds_count{exception=“none”,name=“_INPUT”,result=“success”,type=“channel”,} 126.0 spring_integration_send_seconds_sum{exception=“none”,name=“_INPUT”,result=“success”,type=“channel”,} 4.628215394 spring_integration_send_seconds_count{exception=“none”,name=“_OUTPUT”,result=“success”,type=“channel”,} 126.0 spring_integration_send_seconds_sum{exception=“none”,name=“_OUTPUT”,result=“success”,type=“channel”,} 0.137322503
spring_integration_send_seconds_max	gauge	spring_integration_send_seconds_max{exception=“none”,name=“unknown”,result=“success”,type=“handler”,} 0.0 spring_integration_send_seconds_max{exception=“none”,name=“_INPUT”,result=“success”,type=“channel”,} 0.0 spring_integration_send_seconds_max{exception=“none”,name=“_OUTPUT”,result=“success”,type=“channel”,} 0.0
spring_integration_sources	gauge	spring_integration_sources 0.0
system_cpu_count	gauge	system_cpu_count 24.0
system_cpu_usage	gauge	system_cpu_usage 0.10151826607522811
system_load_average_1m	gauge	system_load_average_1m 3.9
tomcat_global_error_total	counter	tomcat_global_error_total{name=“http-nio-8080”,} 0.0
tomcat_global_received_bytes_total	counter	tomcat_global_received_bytes_total{name=“http-nio-8080”,} 0.0
tomcat_global_request_max_seconds	gauge	tomcat_global_request_max_seconds{name=“http-nio-8080”,} 0.482
tomcat_global_request_seconds	summary	tomcat_global_request_seconds_count{name=“http-nio-8080”,} 27.0 tomcat_global_request_seconds_sum{name=“http-nio-8080”,} 0.81
tomcat_global_sent_bytes_total	counter	tomcat_global_sent_bytes_total{name=“http-nio-8080”,} 281704.0
tomcat_sessions_active_current_sessions	gauge	tomcat_sessions_active_current_sessions 0.0
tomcat_sessions_active_max_sessions	gauge	tomcat_sessions_active_max_sessions 0.0
tomcat_sessions_alive_max_seconds	gauge	tomcat_sessions_alive_max_seconds 0.0
tomcat_sessions_created_sessions_total	counter	tomcat_sessions_created_sessions_total 0.0
tomcat_sessions_expired_sessions_total	counter	tomcat_sessions_expired_sessions_total 0.0
tomcat_sessions_rejected_sessions_total	counter	tomcat_sessions_rejected_sessions_total 0.0
tomcat_threads_busy_threads	gauge	tomcat_threads_busy_threads{name=“http-nio-8080”,} 1.0
tomcat_threads_config_max_threads	gauge	tomcat_threads_config_max_threads{name=“http-nio-8080”,} 2000.0
tomcat_threads_current_threads	gauge	tomcat_threads_current_threads{name=“http-nio-8080”,} 10.0

指标说明

http请求

• 每秒http请求数 http_server_requests_seconds
• http请求数峰值 http_server_requests_seconds_max

jvm

缓冲区

• 计数缓冲 jvm_buffer_count_buffers
• 缓冲内存使用大小 jvm_buffer_memory_used_bytes
• 缓冲容量大小 jvm_buffer_total_capacity_bytes

类信息

• 已加载类个数 jvm_classes_loaded_classes
• 已卸载类总数 jvm_classes_unloaded_classes_total

gc信息

• gc存活数据大小 jvm_gc_live_data_size_bytes
• gc最大数据大小 jvm_gc_max_data_size_bytes
• gc分配的内存大小 jvm_gc_memory_allocated_bytes_total
• gc晋升到下一代的内存大小 jvm_gc_memory_promoted_bytes_total
• gc等待的时间 jvm_gc_pause_seconds
• gc等待的最大时间 jvm_gc_pause_seconds_max

内存信息

• 已提交内存 jvm_memory_committed_bytes
• 最大内存 jvm_memory_max_bytes
• 已使用内存 jvm_memory_used_bytes

线程信息

• 守护线程 jvm_threads_daemon_threads
• 存活线程 jvm_threads_live_threads
• 线程峰值 jvm_threads_peak_threads
• 不同状态的线程 jvm_threads_states_threads

日志

• 打印日志个数 logback_events_total

进程

• cpu使用率 process_cpu_usage
• 最大文件数 process_files_max_files
• 打开文件数 process_files_open_files
• 进程启动时刻 process_start_time_seconds
• 进程运行时间 process_uptime_seconds

rabbitmq

• 已发布消息数 rabbitmq_published_total
• 已消费消息数 rabbitmq_consumed_total
• 已拒绝消息数 rabbitmq_rejected_total
• 已确认消息数 rabbitmq_acknowledged_total
• 通道数 rabbitmq_channels
• 连接数 rabbitmq_connections

integration

• 通道数 spring_integration_channels
• 处理器数 spring_integration_handlers
• 发送消息数 spring_integration_send_seconds
• 单位时间发送消息最大值 spring_integration_send_seconds_max

系统信息

• cpu个数 system_cpu_count
• cpu使用情况 system_cpu_usage
• 系统平均负载 system_load_average_1m

tomcat信息

全局信息

• 总体报错数 tomcat_global_error_total
• 接收的字节总数 tomcat_global_received_bytes_total
• 发出的字节总数 tomcat_global_sent_bytes_total
• 每秒最大请求数 tomcat_global_request_max_seconds
• 每秒请求数 tomcat_global_request_seconds

会话信息

• 目前活跃会话数 tomcat_sessions_active_current_sessions
• 活跃最大会话数 tomcat_sessions_active_max_sessions
• 会话活跃的最长时间 tomcat_sessions_alive_max_seconds
• 累计创建的会话数 tomcat_sessions_created_sessions_total
• 累计失效的会话数 tomcat_sessions_expired_sessions_total
• 累计拒绝的会话数 tomcat_sessions_rejected_sessions_total

线程信息

• 繁忙的线程数 tomcat_threads_busy_threads
• 配置的最大线程数 tomcat_threads_config_max_threads
• 当前线程数 tomcat_threads_current_threads

总结

根据项目的依赖的不同，指标会增加或减少。仔细分析这些指标，还是挺有用处的。了解服务的运行状况有助于排查服务的问题，并做出合理的决策。