1. # HELP system_cpu_count The number of processors available to the Java virtual machine
    2. # TYPE system_cpu_count gauge
    3. system_cpu_count{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 1.0
    6. # HELP system_load_average_1m The sum of the number of runnable entities queued to available processors and the number of runnable 
    7. entities running on the available processors averaged over a period of time
    10. # TYPE system_load_average_1m gauge
    11. system_load_average_1m{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 6.49
    14. # HELP jvm_gc_max_data_size_bytes Max size of old generation memory pool
    15. # TYPE jvm_gc_max_data_size_bytes gauge
    16. jvm_gc_max_data_size_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 8.05306368E8
    19. # HELP process_cpu_usage The "recent cpu usage" for the Java Virtual Machine process
    20. # TYPE process_cpu_usage gauge
    21. process_cpu_usage{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 9.87166831194472E-4
    24. # HELP tomcat_sessions_active_current_sessions  
    25. # TYPE tomcat_sessions_active_current_sessions gauge
    26. tomcat_sessions_active_current_sessions{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    29. # HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management
    30. # TYPE jvm_memory_max_bytes gauge
    31. jvm_memory_max_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Compressed Class Space",} 2.60046848E8
    32. jvm_memory_max_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Eden Space",} 6.44349952E8
    33. jvm_memory_max_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="CMS Old Gen",} 8.05306368E8
    34. jvm_memory_max_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Metaspace",} -1.0
    35. jvm_memory_max_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Survivor Space",} 8.0478208E7
    36. jvm_memory_max_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Code Cache",} 2.5165824E8
    39. # HELP jvm_threads_states_threads The current number of threads having NEW state
    40. # TYPE jvm_threads_states_threads gauge
    41. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="runnable",} 19.0
    42. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="new",} 0.0
    43. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="terminated",} 0.0
    44. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="blocked",} 0.0
    45. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="waiting",} 236.0
    46. jvm_threads_states_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",state="timed-waiting",} 37.0
    49. # HELP jdbc_connections_min Minimum number of idle connections in the pool.
    50. # TYPE jdbc_connections_min gauge
    51. jdbc_connections_min{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",name="dataSource",} -1.0
    54. # HELP process_uptime_seconds The uptime of the Java virtual machine
    55. # TYPE process_uptime_seconds gauge
    56. process_uptime_seconds{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 16540.895
    59. # HELP process_files_open_files The open file descriptor count
    60. # TYPE process_files_open_files gauge
    61. process_files_open_files{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 239.0
    64. # HELP process_start_time_seconds Start time of the process since unix epoch.
    65. # TYPE process_start_time_seconds gauge
    66. process_start_time_seconds{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 1.663727451892E9
    69. # HELP tomcat_sessions_rejected_sessions_total  
    70. # TYPE tomcat_sessions_rejected_sessions_total counter
    71. tomcat_sessions_rejected_sessions_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    74. # HELP jvm_gc_memory_promoted_bytes_total Count of positive increases in the size of the old generation memory pool before GC to after GC
    75. # TYPE jvm_gc_memory_promoted_bytes_total counter
    76. jvm_gc_memory_promoted_bytes_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 3.755264E7
    79. # HELP jvm_gc_memory_allocated_bytes_total Incremented for an increase in the size of the young generation memory pool after one GC to before the next
    80. # TYPE jvm_gc_memory_allocated_bytes_total counter
    81. jvm_gc_memory_allocated_bytes_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 1.3531348992E10
    84. # HELP system_cpu_usage The "recent cpu usage" for the whole system
    85. # TYPE system_cpu_usage gauge
    86. system_cpu_usage{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.17716924056678873
    89. # HELP jdbc_connections_max Maximum number of active connections that can be allocated at the same time.
    90. # TYPE jdbc_connections_max gauge
    91. jdbc_connections_max{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",name="dataSource",} -1.0
    94. # HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool
    95. # TYPE jvm_buffer_count_buffers gauge
    96. jvm_buffer_count_buffers{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="direct",} 18.0
    97. jvm_buffer_count_buffers{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="mapped",} 0.0
    100. # HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool
    101. # TYPE jvm_buffer_total_capacity_bytes gauge
    102. jvm_buffer_total_capacity_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="direct",} 93936.0
    103. jvm_buffer_total_capacity_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="mapped",} 0.0
    106. # HELP jvm_threads_daemon_threads The current number of live daemon threads
    107. # TYPE jvm_threads_daemon_threads gauge
    108. jvm_threads_daemon_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 286.0
    111. # HELP jvm_classes_loaded_classes The number of classes that are currently loaded in the Java virtual machine
    112. # TYPE jvm_classes_loaded_classes gauge
    113. jvm_classes_loaded_classes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 19338.0
    116. # HELP process_files_max_files The maximum file descriptor count
    117. # TYPE process_files_max_files gauge
    118. process_files_max_files{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 1048576.0
    121. # HELP jvm_gc_live_data_size_bytes Size of old generation memory pool after a full GC
    122. # TYPE jvm_gc_live_data_size_bytes gauge
    123. jvm_gc_live_data_size_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    126. # HELP tomcat_sessions_active_max_sessions  
    127. # TYPE tomcat_sessions_active_max_sessions gauge
    128. tomcat_sessions_active_max_sessions{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    131. # HELP jvm_threads_peak_threads The peak live thread count since the Java virtual machine started or peak was reset
    132. # TYPE jvm_threads_peak_threads gauge
    133. jvm_threads_peak_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 293.0
    136. # HELP tomcat_sessions_expired_sessions_total  
    137. # TYPE tomcat_sessions_expired_sessions_total counter
    138. tomcat_sessions_expired_sessions_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    141. # HELP tomcat_sessions_created_sessions_total  
    142. # TYPE tomcat_sessions_created_sessions_total counter
    143. tomcat_sessions_created_sessions_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    146. # HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool
    147. # TYPE jvm_buffer_memory_used_bytes gauge
    148. jvm_buffer_memory_used_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="direct",} 93938.0
    149. jvm_buffer_memory_used_bytes{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",id="mapped",} 0.0
    152. # HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
    153. # TYPE jvm_memory_committed_bytes gauge
    154. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Compressed Class Space",} 1.441792E7
    155. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Eden Space",} 6.44349952E8
    156. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="CMS Old Gen",} 8.05306368E8
    157. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Metaspace",} 1.1010048E8
    158. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Survivor Space",} 8.0478208E7
    159. jvm_memory_committed_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Code Cache",} 5.3477376E7
    162. # HELP jvm_classes_unloaded_classes_total The total number of classes unloaded since the Java virtual machine has started execution
    163. # TYPE jvm_classes_unloaded_classes_total counter
    164. jvm_classes_unloaded_classes_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    166. # HELP jvm_threads_live_threads The current number of live threads including both daemon and non-daemon threads
    167. # TYPE jvm_threads_live_threads gauge
    168. jvm_threads_live_threads{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 292.0
    171. # HELP log4j2_events_total Number of fatal level log events
    172. # TYPE log4j2_events_total counter
    173. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="fatal",} 0.0
    174. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="trace",} 0.0
    175. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="warn",} 2.0
    176. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="info",} 19.0
    177. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="error",} 11.0
    178. log4j2_events_total{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",level="debug",} 0.0
    181. # HELP jvm_memory_used_bytes The amount of used memory
    182. # TYPE jvm_memory_used_bytes gauge
    183. jvm_memory_used_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Compressed Class Space",} 1.345356E7
    184. jvm_memory_used_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Eden Space",} 3.6888272E7
    185. jvm_memory_used_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="CMS Old Gen",} 5.412156E7
    186. jvm_memory_used_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Metaspace",} 1.0442104E8
    187. jvm_memory_used_bytes{application="scp-brand-demand-service",area="heap",environment="dev",host="172.27.173.229",id="Par Survivor Space",} 2.1593152E7
    188. jvm_memory_used_bytes{application="scp-brand-demand-service",area="nonheap",environment="dev",host="172.27.173.229",id="Code Cache",} 5.2955072E7
    191. # HELP tomcat_sessions_alive_max_seconds  
    192. # TYPE tomcat_sessions_alive_max_seconds gauge
    193. tomcat_sessions_alive_max_seconds{application="scp-brand-demand-service",environment="dev",host="172.27.173.229",} 0.0
    196. # HELP jvm_gc_pause_seconds Time spent in GC pause
    197. # TYPE jvm_gc_pause_seconds summary
    198. jvm_gc_pause_seconds_count{action="end of minor GC",application="scp-brand-demand-service",cause="Allocation Failure",environment="dev",host="172.27.173.229",} 21.0
    199. jvm_gc_pause_seconds_sum{action="end of minor GC",application="scp-brand-demand-service",cause="Allocation Failure",environment="dev",host="172.27.173.229",} 1.826
    202. # HELP jvm_gc_pause_seconds_max Time spent in GC pause
    203. # TYPE jvm_gc_pause_seconds_max gauge
    204. jvm_gc_pause_seconds_max{action="end of minor GC",application="scp-brand-demand-service",cause="Allocation Failure",environment="dev",host="172.27.173.229",} 0.022
    207. # HELP http_server_requests_seconds  
    208. # TYPE http_server_requests_seconds summary
    209. http_server_requests_seconds_count{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 1.0
    210. http_server_requests_seconds_sum{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.010332595
    211. http_server_requests_seconds_count{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/scp-brand-demand-service/metrics/prometheus",} 550.0
    212. http_server_requests_seconds_sum{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/scp-brand-demand-service/metrics/prometheus",} 5.088314167
    213. http_server_requests_seconds_count{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/health/check",} 4939.0
    214. http_server_requests_seconds_sum{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/health/check",} 5.741246228
    217. # HELP http_server_requests_seconds_max  
    218. # TYPE http_server_requests_seconds_max gauge
    219. http_server_requests_seconds_max{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.0
    220. http_server_requests_seconds_max{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/scp-brand-demand-service/metrics/prometheus",} 0.011999
    221. http_server_requests_seconds_max{application="scp-brand-demand-service",environment="dev",exception="None",host="172.27.173.229",method="GET",outcome="SUCCESS",status="200",uri="/health/check",} 0.001631965
    1. # HELP jvm_gc_collection_seconds Time spent in a given JVM garbage collector in seconds.
    2. # TYPE jvm_gc_collection_seconds summary
    3. #这是一个Summary指标，与Histogram类似，可以对指标数据进行采样
    6. # 并发收集器 CMS(Concurrent Mark-Sweep)
    7. 以牺牲吞吐量为代价来获得最短回收停顿时间的垃圾回收器
    8. 对于要求服务器响应速度的应用上，这种垃圾回收器非常适合。
    9. CMS是用于对tenured generation的回收，也就是年老代的回收，目标是尽量减少应用的暂停时间，减少full gc发生的几率，
    10. 利用和应用程序线程并发的垃圾回收线程来标记清除年老代。
    11. 在启动JVM参数加上-XX:+UseConcMarkSweepGC ，这个参数表示对于老年代的回收采用CMS。CMS采用的基础算法是：标记—清除。
    13. CMS不对堆空间整理压缩节约了垃圾回收的停顿时间，但也带来的堆空间的浪费。为了解决堆空间浪费问题，
    14. CMS回收器不再采用简单的指针指向一块可用堆空 间来为下次对象分配使用。
    15. 而是把一些未分配的空间汇总成一个列表，当JVM分配对象空间的时候，会搜索这个列表找到足够大的空间来hold住这个对象。
    17. CMS的另一个缺点是它需要更大的堆空间。因为CMS标记阶段应用程序的线程还是在执行的，那么就会有堆空间继续分配的情况，
    18. 为了保证在CMS回 收完堆之前还有空间分配给正在运行的应用程序，必须预留一部分空间。
    20. 在回收完成之前，堆没有足够空间分配！默认当老年代使用68%的时候，CMS就开始行动了。 – XX:CMSInitiatingOccupancyFraction =n 来设置这个阀值。
    22. 总得来说，CMS回收器减少了回收的停顿时间，但是降低了堆空间的利用率。
    24. 如果你的应用程序对停顿比较敏感，并且在应用程序运行的时候可以提供更大的内存和更多的CPU(也就是硬件牛逼)，那么使用CMS来收集会给你带来好处。
    25. 还有，如果在JVM中，有相对较多存活时间较长的对象(老年代比较大)会更适合使用CMS。
    27. ParNew垃圾收集器
    28. Par是Parallel的缩写,多线程的意思,
    29. 但是这里的多线程仅仅指垃圾收集多线程并行,并不是垃圾收集和程序并行运行.ParNew也需要暂停一切工作,然后多线程并行垃圾收集.
    31. 参数
    32. "-XX:+UseConcMarkSweepGC"：指定使用CMS后，会默认使用ParNew作为新生代收集器；
    33. "-XX:+UseParNewGC"：强制指定使用ParNew；
    34. "-XX:ParallelGCThreads"：指定垃圾收集的线程数量，ParNew默认开启的收集线程尽量与CPU的数量相当；
    36. # HELP jvm_gc_collection_seconds Time spent in a given JVM garbage collector in seconds.
    37. # TYPE jvm_gc_collection_seconds summary
    38. jvm_gc_collection_seconds_count{gc="ParNew",} 87.0 ==>YGC
    39. jvm_gc_collection_seconds_sum{gc="ParNew",} 15.487 ==>YGCT
    40. jvm_gc_collection_seconds_count{gc="ConcurrentMarkSweep",} 0.0 ==>FGC
    41. jvm_gc_collection_seconds_sum{gc="ConcurrentMarkSweep",} 0.0 ==>FGCT
    44. [root@test /]# /usr/local/java/jdk1.8.0_151/bin/jstat -gcutil 48 1000 1000
    45. S0 S1 E O M CCS YGC YGCT FGC FGCT GCT
    46. 1.07 0.00 11.43 2.73 96.31 94.32 88 15.550 0 0.000 15.550
    47. 1.07 0.00 11.92 2.73 96.31 94.32 88 15.550 0 0.000 15.550
    48. 1.07 0.00 12.26 2.73 96.31 94.32 88 15.550 0 0.000 15.550
    52. # HELP jvm_memory_bytes_used Used bytes of a given JVM memory area.
    53. # TYPE jvm_memory_bytes_used gauge
    54. #jvm已用内存区域
    55. jvm_memory_bytes_used{area="heap",} 2.334615096E9 ==>堆内存使用
    56. jvm_memory_bytes_used{area="nonheap",} 1.8031396E8 ==>非堆内存使用
    58. 备注:
    60.      nonheap =  "Code Cache" + "Metaspace" + "Compressed Class Space"
    62.      heap = "Par Eden Space" +  "Par Survivor Space" +  "CMS Old Gen" 
    65. 结论：init约等于xms的值，max约等于xmx的值。
    66. used是已经被使用的内存大小，committed是当前可使用的内存大小（包括已使用的），committed >= used。
    67. committed不足时jvm向系统申请，若超过max则发生OutOfMemoryError错误。
    68. # HELP jvm_memory_bytes_committed Committed (bytes) of a given JVM memory area.
    69. # TYPE jvm_memory_bytes_committed gauge
    70. jvm_memory_bytes_committed{area="heap",} 8.267825152E9
    71. jvm_memory_bytes_committed{area="nonheap",} 1.85270272E8
    74. # HELP jvm_memory_bytes_max Max (bytes) of a given JVM memory area.
    75. # TYPE jvm_memory_bytes_max gauge
    76. #jvm内存区域的最大字节数
    77. jvm_memory_bytes_max{area="heap",} 8.267825152E9
    78. jvm_memory_bytes_max{area="nonheap",} 1.59383552E9
    80. # HELP jvm_memory_bytes_init Initial bytes of a given JVM memory area.
    81. # TYPE jvm_memory_bytes_init gauge
    82. #jvm内存区域的初始化字节数
    83. jvm_memory_bytes_init{area="heap",} 8.589934592E9
    84. jvm_memory_bytes_init{area="nonheap",} 2555904.0
    86. # HELP jvm_memory_pool_bytes_used Used bytes of a given JVM memory pool.
    87. # TYPE jvm_memory_pool_bytes_used gauge
    88. #jvm内存池使用情况
    89. jvm_memory_pool_bytes_used{pool="Code Cache",} 7.2995456E7
    90. jvm_memory_pool_bytes_used{pool="Metaspace",} 9.6191616E7
    91. jvm_memory_pool_bytes_used{pool="Compressed Class Space",} 1.1126888E7
    92. jvm_memory_pool_bytes_used{pool="Par Eden Space",} 2.184666584E9
    93. jvm_memory_pool_bytes_used{pool="Par Survivor Space",} 3342224.0
    94. jvm_memory_pool_bytes_used{pool="CMS Old Gen",} 1.46606288E8
    97. # HELP jvm_memory_pool_bytes_committed Committed bytes of a given JVM memory pool.
    98. # TYPE jvm_memory_pool_bytes_committed gauge
    99. jvm_memory_pool_bytes_committed{pool="Code Cache",} 7.3596928E7
    100. jvm_memory_pool_bytes_committed{pool="Metaspace",} 9.9876864E7
    101. jvm_memory_pool_bytes_committed{pool="Compressed Class Space",} 1.179648E7
    102. jvm_memory_pool_bytes_committed{pool="Par Eden Space",} 2.577006592E9
    103. jvm_memory_pool_bytes_committed{pool="Par Survivor Space",} 3.2210944E8
    104. jvm_memory_pool_bytes_committed{pool="CMS Old Gen",} 5.36870912E9
    107. # HELP jvm_memory_pool_bytes_max Max bytes of a given JVM memory pool.
    108. # TYPE jvm_memory_pool_bytes_max gauge
    109. #jvm内存池最大数
    110. jvm_memory_pool_bytes_max{pool="Code Cache",} 2.5165824E8
    111. jvm_memory_pool_bytes_max{pool="Metaspace",} 2.68435456E8
    112. jvm_memory_pool_bytes_max{pool="Compressed Class Space",} 1.073741824E9
    113. jvm_memory_pool_bytes_max{pool="Par Eden Space",} 2.577006592E9
    114. jvm_memory_pool_bytes_max{pool="Par Survivor Space",} 3.2210944E8
    115. jvm_memory_pool_bytes_max{pool="CMS Old Gen",} 5.36870912E9
    118. # HELP jvm_memory_pool_bytes_init Initial bytes of a given JVM memory pool.
    119. # TYPE jvm_memory_pool_bytes_init gauge
    120. #jvm内存池初始化数
    121. jvm_memory_pool_bytes_init{pool="Code Cache",} 2555904.0
    122. jvm_memory_pool_bytes_init{pool="Metaspace",} 0.0
    123. jvm_memory_pool_bytes_init{pool="Compressed Class Space",} 0.0
    124. jvm_memory_pool_bytes_init{pool="Par Eden Space",} 2.577006592E9
    125. jvm_memory_pool_bytes_init{pool="Par Survivor Space",} 3.2210944E8
    126. jvm_memory_pool_bytes_init{pool="CMS Old Gen",} 5.36870912E9
    129. # HELP jmx_config_reload_success_total Number of times configuration have successfully been reloaded.
    130. # TYPE jmx_config_reload_success_total counter
    131. jmx_config_reload_success_total 0.0
    134. # HELP jvm_classes_loaded The number of classes that are currently loaded in the JVM
    135. # TYPE jvm_classes_loaded gauge
    136. #当前jvm已加载类数量
    137. jvm_classes_loaded 16377.0
    140. # HELP jvm_classes_loaded_total The total number of classes that have been loaded since the JVM has started execution
    141. # TYPE jvm_classes_loaded_total counter
    142. #从jvm运行开始加载的类的数量，这是一个Counter指标，递增
    143. jvm_classes_loaded_total 16377.0
    146. # HELP jvm_classes_unloaded_total The total number of classes that have been unloaded since the JVM has started execution
    147. # TYPE jvm_classes_unloaded_total counter
    148. #jvm运行后卸载的类数量，这是一个Counter指标。生产环境一直是0
    149. jvm_classes_unloaded_total 0.0
    152. # HELP jvm_info JVM version info
    153. # TYPE jvm_info gauge
    154. jvm_info{version="1.8.0_151-b12",vendor="Oracle Corporation",runtime="Java(TM) SE Runtime Environment",} 1.0
    157. # HELP os_free_physical_memory_bytes FreePhysicalMemorySize (java.lang<type=OperatingSystem><>FreePhysicalMemorySize)
    158. # TYPE os_free_physical_memory_bytes gauge
    159. os_free_physical_memory_bytes 1.9491221504E10
    161. # HELP os_committed_virtual_memory_bytes CommittedVirtualMemorySize (java.lang<type=OperatingSystem><>CommittedVirtualMemorySize)
    162. # TYPE os_committed_virtual_memory_bytes gauge
    163. os_committed_virtual_memory_bytes 3.4423967744E10
    165. # HELP os_total_swap_space_bytes TotalSwapSpaceSize (java.lang<type=OperatingSystem><>TotalSwapSpaceSize)
    166. # TYPE os_total_swap_space_bytes gauge
    167. os_total_swap_space_bytes 0.0
    170. # HELP os_max_file_descriptor_count MaxFileDescriptorCount (java.lang<type=OperatingSystem><>MaxFileDescriptorCount)
    171. # TYPE os_max_file_descriptor_count gauge
    172. os_max_file_descriptor_count 1048576.0
    174. # HELP os_system_load_average SystemLoadAverage (java.lang<type=OperatingSystem><>SystemLoadAverage)
    175. # TYPE os_system_load_average gauge
    176. os_system_load_average 3.84
    178. # HELP os_total_physical_memory_bytes TotalPhysicalMemorySize (java.lang<type=OperatingSystem><>TotalPhysicalMemorySize)
    179. # TYPE os_total_physical_memory_bytes gauge
    180. os_total_physical_memory_bytes 2.02692759552E11
    181. # HELP os_system_cpu_load SystemCpuLoad (java.lang<type=OperatingSystem><>SystemCpuLoad)
    182. # TYPE os_system_cpu_load gauge
    183. os_system_cpu_load 0.04950495049504951
    185. # HELP os_free_swap_space_bytes FreeSwapSpaceSize (java.lang<type=OperatingSystem><>FreeSwapSpaceSize)
    186. # TYPE os_free_swap_space_bytes gauge
    187. os_free_swap_space_bytes 0.0
    189. # HELP os_available_processors AvailableProcessors (java.lang<type=OperatingSystem><>AvailableProcessors)
    190. # TYPE os_available_processors gauge
    191. os_available_processors 48.0
    193. # HELP os_process_cpu_load ProcessCpuLoad (java.lang<type=OperatingSystem><>ProcessCpuLoad)
    194. # TYPE os_process_cpu_load gauge
    195. os_process_cpu_load 0.0
    197. # HELP os_open_file_descriptor_count OpenFileDescriptorCount (java.lang<type=OperatingSystem><>OpenFileDescriptorCount)
    198. # TYPE os_open_file_descriptor_count gauge
    199. os_open_file_descriptor_count 163.0
    200. # HELP jmx_scrape_duration_seconds Time this JMX scrape took, in seconds.
    201. # TYPE jmx_scrape_duration_seconds gauge
    202. jmx_scrape_duration_seconds 0.00121965
    204. # HELP jmx_scrape_error Non-zero if this scrape failed.
    205. # TYPE jmx_scrape_error gauge
    206. jmx_scrape_error 0.0
    208. # HELP jmx_config_reload_failure_total Number of times configuration have failed to be reloaded.
    209. # TYPE jmx_config_reload_failure_total counter
    210. jmx_config_reload_failure_total 0.0
    212. # HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.
    213. # TYPE process_cpu_seconds_total counter
    214. #用户和系统的总cpu使用时间
    215. process_cpu_seconds_total 2293.82
    217. # HELP process_start_time_seconds Start time of the process since unix epoch in seconds.
    218. # TYPE process_start_time_seconds gauge
    219. process_start_time_seconds 1.618365917041E9
    221. # HELP process_open_fds Number of open file descriptors.
    222. # TYPE process_open_fds gauge
    223. process_open_fds 163.0
    225. # HELP process_max_fds Maximum number of open file descriptors.
    226. # TYPE process_max_fds gauge
    227. process_max_fds 1048576.0
    229. # HELP process_virtual_memory_bytes Virtual memory size in bytes.
    230. # TYPE process_virtual_memory_bytes gauge
    231. process_virtual_memory_bytes 3.4423963648E10
    233. # HELP process_resident_memory_bytes Resident memory size in bytes.
    234. # TYPE process_resident_memory_bytes gauge
    235. process_resident_memory_bytes 3.942313984E9
    237. # HELP jvm_buffer_pool_used_bytes Used bytes of a given JVM buffer pool.
    238. # TYPE jvm_buffer_pool_used_bytes gauge
    239. #jvm缓冲区使用情况，包括Code Cache(编译后的代码缓存，
    240. 不同版本的jvm默认大小不同)、PS Old Gen（老年代）、PS Eden Space（伊甸园）、PS Survivor Space（幸存者）、PS Perm Gen（永久代）
    242. jvm_buffer_pool_used_bytes{pool="direct",} 1729229.0
    244. jvm_buffer_pool_used_bytes{pool="mapped",} 0.0
    245. # HELP jvm_buffer_pool_capacity_bytes Bytes capacity of a given JVM buffer pool.
    246. # TYPE jvm_buffer_pool_capacity_bytes gauge
    247. #给定jvm的估算缓冲区大小
    248. jvm_buffer_pool_capacity_bytes{pool="direct",} 1729229.0
    249. jvm_buffer_pool_capacity_bytes{pool="mapped",} 0.0
    251. # HELP jvm_buffer_pool_used_buffers Used buffers of a given JVM buffer pool.
    252. # TYPE jvm_buffer_pool_used_buffers gauge
    253. #给定jvm的已使用缓冲区大小
    254. jvm_buffer_pool_used_buffers{pool="direct",} 243.0
    255. jvm_buffer_pool_used_buffers{pool="mapped",} 0.0
    257. # HELP jvm_threads_current Current thread count of a JVM
    258. # TYPE jvm_threads_current gauge
    259. #jvm当前线程数
    260. jvm_threads_current 284.0
    262. # HELP jvm_threads_daemon Daemon thread count of a JVM
    263. # TYPE jvm_threads_daemon gauge
    264. #jvm后台线程数
    265. jvm_threads_daemon 241.0
    267. # HELP jvm_threads_peak Peak thread count of a JVM
    268. # TYPE jvm_threads_peak gauge
    269. #jvm线程峰值
    270. jvm_threads_peak 286.0
    272. # HELP jvm_threads_started_total Started thread count of a JVM
    273. # TYPE jvm_threads_started_total counter
    274. #jvm总启动线程数量，Counter指标
    275. jvm_threads_started_total 1260.0
    277. # HELP jvm_threads_deadlocked Cycles of JVM-threads that are in deadlock waiting to acquire object monitors or ownable synchronizers
    278. # TYPE jvm_threads_deadlocked gauge
    279. #死锁线程数量
    280. jvm_threads_deadlocked 0.0
    282. # HELP jvm_threads_deadlocked_monitor Cycles of JVM-threads that are in deadlock waiting to acquire object monitors
    283. # TYPE jvm_threads_deadlocked_monitor gauge
    284. jvm_threads_deadlocked_monitor 0.0

    jvm 监控面板

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