Monitoring and logs in Managed Service for PostgreSQL
Where can I track my use of disk space to avoid exceeding the 95% read-only limit?
You can track your disk space in the management console using cluster status monitoring tools.
Are logs stored on the same disk as PostgreSQL data?
Logs are stored on different disks than data and rotated automatically. You can view log information using the CLI command below:
ncp managed-postgresql cluster list-logs <cluster ID>
What is the retention period for logs?
Cluster logs are stored for 30 days.
What is WAL and what is it used for?
Write-Ahead Logs
For more information about PostgreSQL, see the official documentation
What does the Cached parameter mean for PostgreSQL cluster host RAM monitoring?
Cached stores cached data. Most operations are performed in random-access memory, since this is where all database information is stored. Caching is applied both to databases and to disks, which may cause the amount of cached data to exceed the storage size.
If the amount of RAM used by applications increases, some of the cache memory may be released.
For more information about caching disk data in Linux, see the documentation