[GCP] Ops-agent可以監控java的效能?(工作日常)

在ops-agent當中可以安裝 JVM 來收集 Java 參數，該工具主要收集 memory 以及 garbage collection 的參數，其中監控的選項有包含以下：

jvm.classes.loaded
jvm.gc.collections.count
jvm.gc.collections.elapsed
jvm.memory.heap.committed
jvm.memory.heap.init
jvm.memory.heap.max
jvm.memory.heap.used
jvm.memory.nonheap.committed
jvm.memory.nonheap.init
jvm.memory.nonheap.max
jvm.memory.nonheap.used
jvm.memory.pool.committed
jvm.memory.pool.init
jvm.memory.pool.max
jvm.memory.pool.used
jvm.threads.count

​

詳細的設定方式您可以參考 [1] 文檔中的範例

set -e

# Create a back up of the existing file so existing configurations are not lost.

sudo cp /etc/google-cloud-ops-agent/config.yaml /etc/google-cloud-ops-agent/config.yaml.bak

# Configure the Ops Agent.

sudo tee /etc/google-cloud-ops-agent/config.yaml > /dev/null << EOF

metrics:

  receivers:

    jvm:

      type: jvm

      endpoint: service:jmx:rmi:///jndi/rmi://127.0.0.1:9010/jmxrmi

  service:

    pipelines:

      jvm:

        receivers:

          - jvm

EOF

sudo systemctl restart google-cloud-ops-agent.service

sleep 60

​安裝完後，可於 Monitoring 當中檢視數值，檢視方式請參考 [2]

[1] https://cloud.google.com/stackdriver/docs/solutions/agents/ops-agent/third-party/jvm#configure-instance

[2] https://cloud.google.com/stackdriver/docs/solutions/agents/ops-agent/third-party/jvm#verify-configs