OnSeptember 15, 2026, all Cloud Composer 1 versions and versions 2.0.x of Cloud Composer 2 willreach their planned end of life. You will not be able to use environments with these versions. We recommend planningmigration to Cloud Composer 3. Cloud Composer 2 versions 2.1.x and later are still supported and are not impacted by this change.
This page describes how to access and view Apache Airflow logs for
Cloud Composer.
About log types
Cloud Composer has the following Airflow logs:
Streaming logs. These logs contain Airflow task logs, as well
as logs of Airflow components of your environment, such as Airflow
schedulers and workers.
To learn about Cloud Logging and Cloud Monitoring for your
Cloud Composer environment, seeMonitor environments.
Cloud Composer generatesaudit logs, such as Admin
Activity logs. For more information, seeView audit logs.
Before you begin
Your Google Account must have a role that can view objects in environment
buckets. For more information, seeAccess control.
Logs stored in environment's bucket use the policy of the bucket.
Cloud Composer creates buckets with the default policy that keeps
data forever. For logs stored in Cloud Logging,
Cloud Composer uses_Defaultand User-definedlogs retention periods.
To prevent data loss, logs saved in environment's bucketare not deleted after you delete your environment. You must manually
delete logs from your environment's bucket.
View streaming logs
To view streaming logs in Cloud Logging:
Console
In the Google Cloud console, go to theEnvironmentspage.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-05 UTC."],[[["\u003cp\u003eThis page outlines how to access and view Apache Airflow logs within Cloud Composer, covering three main types: streaming logs, Airflow task logs in the environment's bucket, and audit logs.\u003c/p\u003e\n"],["\u003cp\u003eStreaming logs, including Airflow task and component logs, can be accessed through Cloud Logging via the Google Cloud console's Environments page, under the logs tab.\u003c/p\u003e\n"],["\u003cp\u003eAirflow task logs stored in the environment's bucket are located in the \u003ccode\u003e/logs\u003c/code\u003e folder and can be accessed via the DAGs link on the Environments page in the Google Cloud console.\u003c/p\u003e\n"],["\u003cp\u003eAccessing logs requires a Google Account with the appropriate permissions to view objects in environment buckets, and it's important to know that logs saved in environment's buckets are not automatically deleted when the environment is deleted.\u003c/p\u003e\n"],["\u003cp\u003eCloud Composer uses \u003ccode\u003e_Default\u003c/code\u003e and User-defined logs retention periods for logs stored in Cloud Logging.\u003c/p\u003e\n"]]],[],null,["\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\n[Cloud Composer 3](/composer/docs/composer-3/view-logs \"View this page for Cloud Composer 3\") \\| **Cloud Composer 2** \\| [Cloud Composer 1](/composer/docs/composer-1/view-logs \"View this page for Cloud Composer 1\")\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nThis page describes how to access and view Apache Airflow logs for\nCloud Composer.\n\nAbout log types\n\nCloud Composer has the following Airflow logs:\n\n- [Streaming logs](#streaming). These logs contain Airflow task logs, as well\n as logs of Airflow components of your environment, such as Airflow\n schedulers and workers.\n\n To learn about Cloud Logging and Cloud Monitoring for your\n Cloud Composer environment, see\n [Monitor environments](/composer/docs/composer-2/monitor-environments).\n- [Airflow task logs in the environment's bucket](#view-bucket). These logs are\n associated with single DAG tasks.\n\n If you\n [enable saving logs to the environment's bucket](/composer/docs/composer-2/enable-saving-logs-to-environment-bucket),\n Cloud Composer saves files with Airflow task logs to the `/logs`\n folder.\n\n- Cloud Composer generates [audit logs](/logging/docs/audit), such as Admin\n Activity logs. For more information, see\n [View audit logs](/composer/docs/composer-2/audit-logging).\n\nBefore you begin\n\n\u003cbr /\u003e\n\n- Your Google Account must have a role that can view objects in environment\n buckets. For more information, see [Access control](/composer/docs/composer-2/access-control).\n\n- Logs stored in environment's bucket use the policy of the bucket.\n Cloud Composer creates buckets with the default policy that keeps\n data forever. For logs stored in Cloud Logging,\n Cloud Composer uses `_Default` and User-defined\n [logs retention periods](/logging/quotas#logs_retention_periods).\n\n- To prevent data loss, logs saved in environment's bucket\n **are not deleted after you delete your environment**. You must manually\n delete logs from your environment's bucket.\n\nView streaming logs\n\nTo view streaming logs in Cloud Logging: \n\nConsole\n\n1. In the Google Cloud console, go to the **Environments** page.\n\n [Go to Environments](https://console.cloud.google.com/composer/environments)\n2. In the list of environments, click the name of your environment.\n The **Environment details** page opens.\n\n3. Go to the **Logs** tab.\n\nView streaming logs in Cloud Logging\n\nTo view streaming logs in Cloud Logging: \n\nConsole\n\n1. In the Google Cloud console, go to the **Environments** page.\n\n [Go to Environments](https://console.cloud.google.com/composer/environments)\n2. In the list of environments, locate your environment.\n\n3. in the **Logs** column, click the **Logs** link.\n\nView Airflow task logs in the environment's bucket **Note:** You can view Airflow task logs [in the Airflow UI](/composer/docs/composer-2/access-airflow-web-interface).\n\nTo view Airflow task logs in your environment's bucket: \n\nConsole\n\n1. In Google Cloud console, go to the **Environments** page.\n\n [Go to Environments](https://console.cloud.google.com/composer/environments)\n2. In the list of environments, find a row with the name of your environment\n and in the **DAGs folder** column click the **DAGs** link. The\n **Bucket details** page opens.\n\n3. In the **Folder browser** pane, click `/logs`.\n\n | **Note:** If this folder is empty, then [saving logs to the environment's bucket](/composer/docs/composer-2/enable-saving-logs-to-environment-bucket) might be disabled for your environment.\n\nWhat's next\n\n- [Monitor environments](/composer/docs/composer-2/monitor-environments)\n- [Cloud Composer audit logging](/composer/docs/composer-2/audit-logging)"]]
