Google Cloud Load Balancing

概要

Google Cloud Load Balancing を使用すると、負荷分散されたコンピューティングリソースを単一または複数のリージョンに分配し、高可用性要件を満たすことができます。また、1 つのエニーキャスト IP の背後にリソースを置き、インテリジェントなオートスケーリング機能を使用してリソースをスケーリングできます。

Datadog Google Cloud Platform インテグレーションを使用して、Google Cloud Load Balancing からメトリクスを収集できます。

セットアップ

メトリクスの収集

APM に Datadog Agent を構成する

Google Cloud Platform インテグレーションをまだセットアップしていない場合は、最初にセットアップします。それ以上のインストール手順はありません。

ログの収集

Google Cloud HTTP Loadbalancer のログは Google Cloud Logging により収集され、HTTP プッシュフォワーダーを使用して Cloud Pub/Sub へ送信されます。HTTP プッシュフォワーダーを使用した Cloud Pub/Sub をまだセットアップしていない場合は、これをセットアップしてください。

これが完了したら、Google Cloud HTTP Loadbalancer のログを Google Cloud Logging から Pub/Sub へエクスポートします。

  1. Google Cloud Logging のページに移動し、Google Cloud HTTP Loadbalancer のログを絞り込みます。
  2. シンクを作成し、シンクに適宜名前を付けます。
  3. エクスポート先として「Cloud Pub/Sub」を選択し、エクスポート用に作成された Pub/Sub を選択します。注: この Pub/Sub は別のプロジェクト内に配置することもできます。
  4. 作成をクリックし、確認メッセージが表示されるまで待ちます。

収集データ

メトリクス

gcp.loadbalancing.https.backend_latencies.avg
(gauge)		Average latency of request sent by the proxy to backend until proxy receives last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.backend_latencies.p95
(gauge)		95th percentile of latency of request sent by the proxy to backend until proxy receives last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.backend_latencies.p99
(gauge)		99th percentile of latency of request sent by the proxy to backend until proxy receives last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.backend_latencies.samplecount
(count)		Sample count of latency of request sent by the proxy to backend until proxy receives last byte of response from backend.
Shown as sample
gcp.loadbalancing.https.backend_latencies.sumsqdev
(gauge)		Sum of squared deviation for latency of request sent by the proxy to backend until proxy receives last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.backend_request_bytes_count
(count)		The number of bytes sent as requests from external HTTP/S load balancer to backends.
Shown as byte
gcp.loadbalancing.https.backend_request_count
(count)		The number of requests served by backends of HTTP/S load balancer.
Shown as request
gcp.loadbalancing.https.backend_response_bytes_count
(count)		The number of bytes sent as responses from backends (or cache) to HTTP/S load balancer.
Shown as byte
gcp.loadbalancing.https.frontend_tcp_rtt.avg
(gauge)		Average RTT for each connection between client and proxy.
Shown as millisecond
gcp.loadbalancing.https.frontend_tcp_rtt.p95
(gauge)		95th percentile of RTT for each connection between client and proxy.
Shown as millisecond
gcp.loadbalancing.https.frontend_tcp_rtt.p99
(gauge)		99th percentile RTT for each connection between client and proxy.
Shown as millisecond
gcp.loadbalancing.https.frontend_tcp_rtt.samplecount
(count)		Sample count of RTT for each connection between client and proxy.
Shown as sample
gcp.loadbalancing.https.frontend_tcp_rtt.sumsqdev
(gauge)		Sum of squared deviation of RTT for each connection between client and proxy.
Shown as millisecond
gcp.loadbalancing.https.internal.backend_latencies.avg
(gauge)		Average of latency calculated from request sent by proxy to the backend until proxy received last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.internal.backend_latencies.p95
(gauge)		95th percentile of latency calculated from request sent by proxy to the backend until proxy received last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.internal.backend_latencies.p99
(gauge)		99th percentile of latency calculated from request sent by proxy to the backend until proxy received last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.internal.backend_latencies.samplecount
(count)		Sample count of latency calculated from request sent by proxy to the backend until proxy received last byte of response from backend.
Shown as sample
gcp.loadbalancing.https.internal.backend_latencies.sumsqdev
(gauge)		Sum of squared deviation of latency calculated from request sent by proxy to the backend until proxy received last byte of response from backend.
Shown as millisecond
gcp.loadbalancing.https.internal.request_bytes_count
(count)		The number of bytes sent as requests from clients to HTTP/S load balancer.
Shown as byte
gcp.loadbalancing.https.internal.request_count
(count)		The number of requests served by HTTP/S load balancer.
Shown as request
gcp.loadbalancing.https.internal.response_bytes_count
(count)		The number of bytes sent as responses from HTTP/S load balancer to clients.
Shown as byte
gcp.loadbalancing.https.internal.total_latencies.avg
(gauge)		Average of the latency calculated from when request received by proxy until the proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.internal.total_latencies.p95
(gauge)		95th percentile of the latency calculated from when request received by proxy until the proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.internal.total_latencies.p99
(gauge)		99th percentile of the latency calculated from when request received by proxy until the proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.internal.total_latencies.samplecount
(count)		Sample count of the latency calculated from when request received by proxy until the proxy sees ACK from client on last response byte.
Shown as sample
gcp.loadbalancing.https.internal.total_latencies.sumsqdev
(gauge)		Sum of squared deviation of the latency calculated from when request received by proxy until the proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.request_bytes_count
(count)		Bytes sent as requests from clients to L7 load balancer.
Shown as byte
gcp.loadbalancing.https.request_count
(count)		Number of requests served by L7 load balancer.
Shown as request
gcp.loadbalancing.https.response_bytes_count
(count)		Bytes sent as responses from L7 load balancer to clients.
Shown as byte
gcp.loadbalancing.https.total_latencies.avg
(gauge)		Average latency calculated from request received by proxy until proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.total_latencies.p95
(gauge)		95th percentile of latency calculated from request received by proxy until proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.total_latencies.p99
(gauge)		99th percentile of latency calculated from request received by proxy until proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.https.total_latencies.samplecount
(count)		Sample count of latency calculated from request received by proxy until proxy sees ACK from client on last response byte.
Shown as sample
gcp.loadbalancing.https.total_latencies.sumsqdev
(gauge)		Sum of squared deviation of latency calculated from request received by proxy until proxy sees ACK from client on last response byte.
Shown as millisecond
gcp.loadbalancing.l3.external.egress_bytes_count
(count)		The number of bytes sent from NetLB backend to client of the flow. For TCP flows it's counting bytes on application stream only.
Shown as byte
gcp.loadbalancing.l3.external.egress_packets_count
(count)		The number of packets sent from NetLB backend to client of the flow.
Shown as packet
gcp.loadbalancing.l3.external.ingress_bytes_count
(count)		The number of bytes sent from client to NetLB backend. For TCP flows it's counting bytes on application stream only.
Shown as byte
gcp.loadbalancing.l3.external.ingress_packets_count
(count)		The number of packets sent from client to NetLB backend.
Shown as packet
gcp.loadbalancing.l3.external.rtt_latencies.avg
(gauge)		Average RTT measured over TCP connections for NetLB flows.
Shown as millisecond
gcp.loadbalancing.l3.external.rtt_latencies.p95
(gauge)		95th percentile of RTT measured over TCP connections for NetLB flows.
Shown as millisecond
gcp.loadbalancing.l3.external.rtt_latencies.p99
(gauge)		99th percentile of RTT measured over TCP connections for NetLB flows.
Shown as millisecond
gcp.loadbalancing.l3.external.rtt_latencies.samplecount
(count)		Sample count of RTT measured over TCP connections for NetLB flows.
Shown as sample
gcp.loadbalancing.l3.external.rtt_latencies.sumsqdev
(gauge)		Sum of squared deviation for RTT measured over TCP connections for NetLB flows.
Shown as millisecond
gcp.loadbalancing.l3.internal.egress_bytes_count
(count)		The number of bytes sent from ILB backend to client (for TCP flows it's counting bytes on application stream only).
Shown as byte
gcp.loadbalancing.l3.internal.egress_packets_count
(count)		The number of packets sent from ILB backend to client of the flow.
Shown as packet
gcp.loadbalancing.l3.internal.ingress_bytes_count
(count)		The number of bytes sent from client to ILB backend (for TCP flows it's counting bytes on application stream only).
Shown as byte
gcp.loadbalancing.l3.internal.ingress_packets_count
(count)		The number of packets sent from client to ILB backend.
Shown as packet
gcp.loadbalancing.l3.internal.rtt_latencies.avg
(gauge)		Average RTT measured over TCP connections for ILB flows.
Shown as millisecond
gcp.loadbalancing.l3.internal.rtt_latencies.p95
(gauge)		95th percentile of RTT measured over TCP connections for ILB flows.
Shown as millisecond
gcp.loadbalancing.l3.internal.rtt_latencies.p99
(gauge)		99th percentile of RTT measured over TCP connections for ILB flows.
Shown as millisecond
gcp.loadbalancing.l3.internal.rtt_latencies.samplecount
(count)		Sample count for RTT latencies
Shown as sample
gcp.loadbalancing.l3.internal.rtt_latencies.sumsqdev
(gauge)		Sum of squared deviation for RTT latencies
Shown as millisecond
gcp.loadbalancing.tcp_ssl_proxy.closed_connections
(count)		Number of connections that were terminated over TCP/SSL proxy.
Shown as connection
gcp.loadbalancing.tcp_ssl_proxy.egress_bytes_count
(count)		Number of bytes sent from VM to client using proxy.
Shown as byte
gcp.loadbalancing.tcp_ssl_proxy.frontend_tcp_rtt.avg
(gauge)		Average smoothed RTT measured by the proxy's TCP stack. Each minute application layer bytes pass from proxy to client.
Shown as millisecond
gcp.loadbalancing.tcp_ssl_proxy.frontend_tcp_rtt.p95
(gauge)		95th percentile of smoothed RTT measured by the proxy's TCP stack. Each minute application layer bytes pass from proxy to client.
Shown as millisecond
gcp.loadbalancing.tcp_ssl_proxy.frontend_tcp_rtt.p99
(gauge)		99th percentile of smoothed RTT measured by the proxy's TCP stack. Each minute application layer bytes pass from proxy to client.
Shown as millisecond
gcp.loadbalancing.tcp_ssl_proxy.frontend_tcp_rtt.samplecount
(count)		Sample count of smoothed RTT measured by the proxy's TCP stack. Each minute application layer bytes pass from proxy to client.
Shown as sample
gcp.loadbalancing.tcp_ssl_proxy.frontend_tcp_rtt.sumsqdev
(gauge)		Sum of squared deviation of smoothed RTT measured by the proxy's TCP stack. Each minute application layer bytes pass from proxy to client.
Shown as millisecond
gcp.loadbalancing.tcp_ssl_proxy.ingress_bytes_count
(count)		Number of bytes sent from client to VM using proxy.
Shown as byte
gcp.loadbalancing.tcp_ssl_proxy.new_connections
(count)		Number of connections that were created over TCP/SSL proxy.
Shown as connection
gcp.loadbalancing.tcp_ssl_proxy.open_connections
(count)		Current number of outstanding connections through the TCP/SSL proxy.
Shown as connection

イベント

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サービスのチェック

Google Cloud Load Balancing インテグレーションには、サービスのチェック機能は含まれません。

トラブルシューティング

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