[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-09-04 (世界標準時間)。"],[[["\u003cp\u003eThe Spark UI is a free feature that collects and displays Apache Spark execution details from Dataproc Serverless interactive sessions, retaining data for 90 days, and is enabled by default.\u003c/p\u003e\n"],["\u003cp\u003eTo use the Spark UI with interactive sessions, the service account running the session needs the \u003ccode\u003edataproc.sessions.sparkApplicationWrite\u003c/code\u003e permission, and users accessing the UI need the \u003ccode\u003edataproc.sessions.sparkApplicationRead\u003c/code\u003e permission.\u003c/p\u003e\n"],["\u003cp\u003eYou can access the Spark UI by navigating to the Dataproc Interactive Sessions in the Google Cloud console, selecting an interactive session, and clicking "View Spark UI" in the top menu.\u003c/p\u003e\n"],["\u003cp\u003eThe "View Spark UI" button will be disabled if the necessary permissions are missing or if the Spark UI feature has been disabled during session creation by unchecking the "Enable Spark UI" checkbox or setting the \u003ccode\u003espark.dataproc.appContext.enabled\u003c/code\u003e property to false.\u003c/p\u003e\n"]]],[],null,["# Monitor and troubleshoot interactive sessions\n\nThis document describes how to monitor and troubleshoot Serverless for Apache Spark [interactive sessions](/dataproc-serverless/docs/quickstarts/jupyterlab-sessions) using the Spark UI.\n\n\u003cbr /\u003e\n\nSpark UI\n--------\n\nThe Spark UI collects Apache Spark execution details from Serverless for Apache Spark\ninteractive sessions. There is no charge for the Spark UI feature,\nwhich is enabled by default. Data collected by the Spark UI feature is retained\nfor 90 days.\n| **Note:** The Spark UI also collects and displays execution details from Serverless for Apache Spark batch workloads. See [Monitor and troubleshoot batch workloads](/dataproc-serverless/docs/guides/monitor-troubleshoot-batches) for more information.\n\n### Required Identity and Access Management permissions and roles\n\nThe following permissions are required to use the Spark UI feature with interactive\nsessions:\n\n- Data collection permission: `dataproc.sessions.sparkApplicationWrite`. This\n permission must be granted to the service account that runs interactive sessions.\n It is included in the\n [`Dataproc Worker`](/iam/docs/understanding-roles#dataproc.worker)\n role, which is automatically granted to the Compute Engine default service account\n that Serverless for Apache Spark uses by default. However, if you specify a\n [custom service account](/dataproc-serverless/docs/concepts/service-account)\n for your [session](/sdk/gcloud/reference/beta/dataproc/sessions/create#--service-account)\n or [session runtime template](/dataproc-serverless/docs/quickstarts/jupyterlab-sessions#dataproc_create_serverless_runtime_template_yaml-Complex%20YAML),\n you must add this `dataproc.sessions.sparkApplicationWrite` permission to that service account\n (typically, by granting the service account the Dataproc `Worker` role).\n\n- Spark UI access permission: `dataproc.sessions.sparkApplicationRead`. This\n permission must be granted to a user to access the Spark UI in the\n Google Cloud console. It is included in the\n [`Dataproc Viewer`, `Dataproc Editor` and `Dataproc Administrator`](/dataproc-serverless/docs/concepts/iam#roles)\n roles. To open the Spark UI in the Google Cloud console, you must have one of\n these roles or have a custom role that includes this permission.\n\n### Open the Spark UI\n\nThe Spark UI page is available in the Google Cloud console.\n\n1. [Go to Dataproc Interactive Sessions](https://console.cloud.google.com/dataproc/interactive)\n\n2. Click an **Interactive Session ID** to open the **Interactive Session Details** page.\n3. Click **View Spark UI** in the top menu.\n\n**Is the *View Spark UI* link disabled?** If a\n[required permission is not granted](#required-iam-permissions-and-roles),\nor if you clear the **Enable Spark UI** checkbox on the interactive session details page or set\nthe `spark.dataproc.appContext.enabled` property to `false` (default: `true`) when you\n[create a session](/sdk/gcloud/reference/beta/dataproc/sessions/create/spark#--property) or\n[create a session runtime template](/dataproc-serverless/docs/quickstarts/jupyterlab-sessions#create_a_serverless_runtime_template),\nthe **View Spark UI** button will be disabled."]]
