Ensure that "log_checkpoints" database flag is enabled for your Google Cloud PostgreSQL database instances. The "log_checkpoints" flag allows checkpoints and restart points to be logged and included within the PostgreSQL server log.
In most cases, checkpoints are disrupting for your Google Cloud PostgreSQL database performance and can cause connections to stall for up to a few seconds while they occur. By enabling the "log_checkpoints" flag you can get verbose logging of the checkpoint process for your PostgreSQL database instances. This logging data can be used to identify and troubleshoot sub-optimal PostgreSQL database performance. By default, "log_checkpoints" flag is disabled.
Note: Some database flag settings can affect instance availability and/or stability, and eventually remove the PostgreSQL instance from the Google Cloud SQL Service Level Agreement (SLA).
To determine if "log_checkpoints" flag is enabled for your Google Cloud PostgreSQL database instances, perform the following actions:
Remediation / Resolution
To enable the "log_checkpoints" database flag for your Google Cloud Platform (GCP) PostgreSQL database instances, perform the following operations:
- Google Cloud Platform (GCP) Documentation
- Cloud SQL for PostgreSQL
- Configuring database flags
- Editing instances
- CIS Security Documentation
- Securing Google Cloud Computing Platform
- PostgreSQL Database Documentation
- 19.8. Error Reporting and Logging
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Enable "log_checkpoints" Flag for PostgreSQL Database Instances
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