[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-08-30 UTC。"],[],[],null,["# Setting concurrency\n\nLearn how to set the maximum number of requests that can be processed\nsimultaneously by a given container instance in Knative serving.\n[Learn more about concurrency](/kubernetes-engine/enterprise/knative-serving/docs/concurrency).\n\nAny configuration change leads to the\ncreation of a new revision. Subsequent revisions will also automatically get\nthis configuration setting unless you make explicit updates to change it.\n\nYou can configure concurrency settings using the Google Cloud console,\nor the Google Cloud CLI when you deploy a new\n[service](/kubernetes-engine/enterprise/knative-serving/docs/deploying#service) or update an existing service and\ndeploy a [revision](/kubernetes-engine/enterprise/knative-serving/docs/deploying#revision): \n\n### Console\n\n\n1. Go to Knative serving in the Google Cloud console:\n\n [Go to Knative serving](https://console.cloud.google.com/kubernetes/run)\n2. Click **Create Service** if you are configuring a\n new service you are deploying to. If you are configuring an\n existing service, click on the service, then click\n **Edit \\& Deploy New Revision**.\n\n3. Under *Advanced settings* , click **Container**.\n\n4. Set the desired concurrency value in the text box *Maximum requests per container*.\n\n5. Click **Next** to continue to the next section.\n\n6. In the **Configure how this service is triggered** section,\n select which connectivity you would like to use to invoke the service.\n\n7. Click **Create** to deploy the image to Knative serving and wait\n for the deployment to finish.\n\n### Command line\n\n- For existing services, set the maximum number of concurrent requests by\n running the `gcloud run services update` command with the\n [`--concurrency`](/sdk/gcloud/reference/run/services/update#--concurrency)\n parameter:\n\n ```bash\n gcloud run services update SERVICE --concurrency CONCURRENCY\n ```\n\n Replace:\n - \u003cvar translate=\"no\"\u003eSERVICE\u003c/var\u003e with the name of your service.\n - \u003cvar translate=\"no\"\u003eCONCURRENCY\u003c/var\u003e with the maximum number of concurrent requests per container instance. Specify `default` to clear any concurrency settings: `--concurrency default`.\n- For new services, set the maximum number of concurrent requests by running\n the `gcloud run deploy` command with the\n [`--concurrency`](/sdk/gcloud/reference/run/deploy#--concurrency)\n parameter:\n\n ```bash\n gcloud run deploy SERVICE --image=IMAGE_URL --concurrency CONCURRENCY\n ```\n\n Replace:\n - \u003cvar translate=\"no\"\u003eSERVICE\u003c/var\u003e with the name of your service.\n - \u003cvar translate=\"no\"\u003eIMAGE_URL\u003c/var\u003e with a reference to the container image, for example, `gcr.io/cloudrun/hello`.\n - \u003cvar translate=\"no\"\u003eCONCURRENCY\u003c/var\u003e with the maximum number of concurrent requests per container instance. Specify `default` to clear any concurrency settings: `--concurrency default`.\n\n### YAML\n\n| **Caution:** Deploying configuration changes using YAML files replaces the configuration of your existing services. Since a YAML file completely overwrites all configurations, you should avoid using multiple methods to modify your services. For example, do not use YAML files in conjunction with the Google Cloud console or `gcloud` commands.\n\nYou can download the configuration of an existing service into a\nYAML file with the `gcloud run services describe` command by using the\n[`--format=export`](/sdk/gcloud/reference/run/services/describe) flag.\nYou can then modify that YAML file and deploy\nthose changes with the `gcloud run services replace` command.\nYou must ensure that you modify only the specified attributes.\n\n1. Download the configuration of your service into a file named\n `service.yaml` on local workspace:\n\n ```bash\n gcloud run services describe SERVICE --format export \u003e service.yaml\n ```\n\n Replace \u003cvar translate=\"no\"\u003eSERVICE\u003c/var\u003e with the name of your\n Knative serving service.\n2. In your local file, update the `containerConcurrency` attribute:\n\n ```yaml\n apiVersion: serving.knative.dev/v1\n kind: Service\n metadata:\n name: SERVICE\n spec:\n template:\n spec:\n containerConcurrency: CONCURRENCY\n ```\n\n Replace:\n - \u003cvar translate=\"no\"\u003eSERVICE\u003c/var\u003e with the name of your Knative serving service\n - \u003cvar translate=\"no\"\u003eCONCURRENCY\u003c/var\u003e with the maximum number of concurrent requests per container instance. Specify `default` to clear the concurrency settings: `--concurrency default`.\n3. Replace the service with its new configuration using the following command:\n\n ```bash\n gcloud run services replace service.yaml\n ```"]]