Prometheus (prometheus
)
prometheus
エンドポイントは、Spring Boot アプリケーションのメトリクスを、Prometheus サーバーによるスクレイピングに必要な形式で提供します。
すべてのメトリクスの取得
すべてのメトリクスを取得するには、次の curl ベースの例に示すように、GET
リクエストを /actuator/prometheus
に送信します。
$ curl 'http://localhost:8080/actuator/prometheus' -i -X GET
結果のレスポンスは次のようになります。
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"} 5.3477376E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.18489088E8
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'"} 4718592.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9398656E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.1927552E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.552448E7
# 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"} 2097152.0
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 9.0288128E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 1048576.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1419776.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 4672256.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.938432E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1551048E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.4721552E7
デフォルトのレスポンスコンテンツ型は text/plain;version=0.0.4
です。次のカールベースの例に示すように、適切な Accept
ヘッダーを使用して呼び出された場合、エンドポイントは application/openmetrics-text;version=1.0.0
を生成することもできます。
$ curl 'http://localhost:8080/actuator/prometheus' -i -X GET \
-H 'Accept: application/openmetrics-text; version=1.0.0; charset=utf-8'
結果のレスポンスは次のようになります。
HTTP/1.1 200 OK
Content-Type: application/openmetrics-text;version=1.0.0;charset=utf-8
Content-Length: 3087
# 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"} 5.3477376E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.18489088E8
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'"} 4653056.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9398656E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.1927552E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.5393408E7
# 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"} 0.0
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 8.4607488E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 7238176.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1419776.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 4648576.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9349632E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1538928E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.457764E7
# EOF
フィルタリングされたメトリクスの取得
特定の名前に一致するメトリクスを取得するには、次のカールベースの例に示すように、includedNames
クエリパラメーターを使用して GET
リクエストを /actuator/prometheus
に送信します。
$ curl 'http://localhost:8080/actuator/prometheus?includedNames=jvm_memory_used_bytes%2Cjvm_memory_committed_bytes' -i -X GET
結果のレスポンスは次のようになります。
HTTP/1.1 200 OK
Content-Type: text/plain;version=0.0.4;charset=utf-8
Content-Length: 1460
# 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"} 5.3477376E7
jvm_memory_committed_bytes{area="heap",id="G1 Old Gen"} 1.18489088E8
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'"} 4718592.0
jvm_memory_committed_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9464192E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space"} 1.1927552E7
jvm_memory_committed_bytes{area="nonheap",id="Metaspace"} 8.552448E7
# 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"} 2097152.0
jvm_memory_used_bytes{area="heap",id="G1 Old Gen"} 9.0288128E7
jvm_memory_used_bytes{area="heap",id="G1 Survivor Space"} 1048576.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-nmethods'"} 1419776.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'non-profiled nmethods'"} 4677120.0
jvm_memory_used_bytes{area="nonheap",id="CodeHeap 'profiled nmethods'"} 1.9396992E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space"} 1.1551648E7
jvm_memory_used_bytes{area="nonheap",id="Metaspace"} 8.4726528E7