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版本：3.5.10

Prometheus (prometheus)

QWen Max 中英对照 Prometheus (prometheus) Prometheus (prometheus)

prometheus 端点以 Prometheus 服务器抓取所需的格式提供 Spring Boot 应用程序的指标。

检索所有指标​

要获取所有指标，请向 /actuator/prometheus 发起一个 GET 请求，如下列基于 curl 的示例所示：

$ curl 'http://localhost:8080/actuator/prometheus' -i -X GET

得到的响应类似于以下内容：

HTTP/1.1 200 OK
Content-Type: text/plain;version=0.0.4;charset=utf-8
Content-Length: 3086

# HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool
# TYPE jvm_buffer_count_buffers gauge
jvm_buffer_count_buffers{id="direct"} 3.0
jvm_buffer_count_buffers{id="mapped"} 0.0
jvm_buffer_count_buffers{id="mapped - 'non-volatile memory'"} 0.0
# HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool
# TYPE jvm_buffer_memory_used_bytes gauge
jvm_buffer_memory_used_bytes{id="direct"} 45056.0
jvm_buffer_memory_used_bytes{id="mapped"} 0.0
jvm_buffer_memory_used_bytes{id="mapped - 'non-volatile memory'"} 0.0
# HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool
# TYPE jvm_buffer_total_capacity_bytes gauge
jvm_buffer_total_capacity_bytes{id="direct"} 45056.0
jvm_buffer_total_capacity_bytes{id="mapped"} 0.0
jvm_buffer_total_capacity_bytes{id="mapped - 'non-volatile memory'"} 0.0
# HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
# TYPE jvm_memory_committed_bytes gauge
jvm_memory_committed_bytes{area="heap",id="G1 Eden Space"} 5.1380224E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.16391936E8
jvm_memory_committed_bytes{area="heap",id="G1 Survivor Space"} 1048576.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 2555904.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3211264.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9595264E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.2058624E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.617984E7
# HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management
# TYPE jvm_memory_max_bytes gauge
jvm_memory_max_bytes{area="heap",id="G1 Eden Space"} -1.0
jvm_memory_max_bytes{area="heap",id="G1 Old Gen"} 1.610612736E9
jvm_memory_max_bytes{area="heap",id="G1 Survivor Space"} -1.0
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 5836800.0
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 1.22912768E8
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.22908672E8
jvm_memory_max_bytes{area="nonheap",id="Compressed Class Space"} 1.073741824E9
jvm_memory_max_bytes{area="nonheap",id="Metaspace"} -1.0
# HELP jvm_memory_used_bytes The amount of used memory
# TYPE jvm_memory_used_bytes gauge
jvm_memory_used_bytes{area="heap",id="G1 Eden Space"} 2.097152E7
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 8.892928E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 976304.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1416832.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3174400.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9590912E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1636032E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.5331872E7

默认的响应内容类型为 text/plain;version=0.0.4。当使用适当的 Accept 请求头调用该端点时，它也可以生成 application/openmetrics-text;version=1.0.0，如下列基于 curl 的示例所示：

$ curl 'http://localhost:8080/actuator/prometheus' -i -X GET \
    -H 'Accept: application/openmetrics-text; version=1.0.0; charset=utf-8'

得到的响应类似于以下内容：

HTTP/1.1 200 OK
Content-Type: application/openmetrics-text;version=1.0.0;charset=utf-8
Content-Length: 3093

# TYPE jvm_buffer_count_buffers gauge
# HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool
jvm_buffer_count_buffers{id="direct"} 3.0
jvm_buffer_count_buffers{id="mapped"} 0.0
jvm_buffer_count_buffers{id="mapped - 'non-volatile memory'"} 0.0
# TYPE jvm_buffer_memory_used_bytes gauge
# HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool
jvm_buffer_memory_used_bytes{id="direct"} 45056.0
jvm_buffer_memory_used_bytes{id="mapped"} 0.0
jvm_buffer_memory_used_bytes{id="mapped - 'non-volatile memory'"} 0.0
# TYPE jvm_buffer_total_capacity_bytes gauge
# HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool
jvm_buffer_total_capacity_bytes{id="direct"} 45056.0
jvm_buffer_total_capacity_bytes{id="mapped"} 0.0
jvm_buffer_total_capacity_bytes{id="mapped - 'non-volatile memory'"} 0.0
# TYPE jvm_memory_committed_bytes gauge
# HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
jvm_memory_committed_bytes{area="heap",id="G1 Eden Space"} 5.1380224E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.16391936E8
jvm_memory_committed_bytes{area="heap",id="G1 Survivor Space"} 1048576.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 2555904.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3211264.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9595264E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.1993088E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.5983232E7
# TYPE jvm_memory_max_bytes gauge
# HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management
jvm_memory_max_bytes{area="heap",id="G1 Eden Space"} -1.0
jvm_memory_max_bytes{area="heap",id="G1 Old Gen"} 1.610612736E9
jvm_memory_max_bytes{area="heap",id="G1 Survivor Space"} -1.0
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 5836800.0
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 1.22912768E8
jvm_memory_max_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.22908672E8
jvm_memory_max_bytes{area="nonheap",id="Compressed Class Space"} 1.073741824E9
jvm_memory_max_bytes{area="nonheap",id="Metaspace"} -1.0
# TYPE jvm_memory_used_bytes gauge
# HELP jvm_memory_used_bytes The amount of used memory
jvm_memory_used_bytes{area="heap",id="G1 Eden Space"} 1.8874368E7
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 8.892928E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 976304.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1416832.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3170560.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.956992E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1623544E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.5193336E7
# EOF

查询参数​

该端点使用查询参数来限制其返回的样本。下表列出了支持的查询参数：

参数描述
includedNames限制样本仅包含与指定名称匹配的样本。可选。

检索过滤后的指标​

要检索匹配特定名称的指标，请向 /actuator/prometheus 发起一个 GET 请求，并使用 includedNames 查询参数，如下列基于 curl 的示例所示：

$ curl 'http://localhost:8080/actuator/prometheus?includedNames=jvm_memory_used_bytes%2Cjvm_memory_committed_bytes' -i -X GET

得到的响应类似于以下内容：

HTTP/1.1 200 OK
Content-Type: text/plain;version=0.0.4;charset=utf-8
Content-Length: 1458

# HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
# TYPE jvm_memory_committed_bytes gauge
jvm_memory_committed_bytes{area="heap",id="G1 Eden Space"} 5.1380224E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.16391936E8
jvm_memory_committed_bytes{area="heap",id="G1 Survivor Space"} 1048576.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 2555904.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3211264.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.96608E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.2058624E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.617984E7
# HELP jvm_memory_used_bytes The amount of used memory
# TYPE jvm_memory_used_bytes gauge
jvm_memory_used_bytes{area="heap",id="G1 Eden Space"} 2.2020096E7
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 8.892928E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 976304.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1416832.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 3175168.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9630592E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1636632E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.5349168E7