You can change the retention period for system logs using the rds.log_retention_period parameter in the DB parameter group associated with your DB instance. Large log files can use more space because of higher workloads or excessive logging. Check the size of the DB log filesīy default, Amazon RDS for PostgreSQL error log files have a retention value of 4,320 minutes (three days). For more information, see Managing capacity automatically with Amazon RDS storage autoscaling. You can set a limit for autoscaling your DB instance by setting the maximum storage threshold. At least six hours have passed since the last storage modification, or storage optimization has completed on the instance, whichever is longer.The low-storage condition lasts at least five minutes.Free available space is less than 10 percent of the allocated storage.Amazon RDS starts a storage modification for an autoscaling-enabled DB instance when the following factors apply: With storage autoscaling enabled, when Amazon RDS detects that you are running out of free database space, your storage is automatically scaled. When your workload is predictable, enable storage autoscaling for your instance. Logical replication slots are created for a replica or subscriberģ.Physical replication slots are created by cross-Region read replicas or same-Region read replicas only if they are running on PostgreSQL 14.1 and higher versions.Constant increase in transaction logs disk usage.If your DB instance is still consuming more storage than expected, check for the following: If you receive an alarm, review the causes of storage issues mentioned previously.Ģ. When you set a CloudWatch alarm for free storage space, you receive a notification when the space starts to decrease. Use Amazon CloudWatch to monitor your DB storage space using the FreeStorageSpace metric. Other DB or Linux files that support the consistent state of the RDS DB instanceġ.DB logs (error files) that are retained for too long.
Temporary tables or files that are created by PostgreSQL transactions.Amazon RDS DB instance storage is used by the following:
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