Advisor checks for PMM
Percona Monitoring and Management (PMM) includes a set of Advisors that run checks against the databases connected to PMM. The checks identify and alert you of potential security threats, performance degradation, data loss, data corruption, non-compliance issues, etc.
Prerequisites for accessing Advisor checks¶
All checks are hosted on Percona Platform. PMM Server automatically downloads them from here when the Advisors and Telemetry options are enabled in PMM under Configuration > Settings > Advanced Settings. Both options are enabled by default.
Advisor check tiers and entitlements¶
Depending on the entitlements available for your Percona Account, the set of advisor checks that PMM can download from Percona Platform differ in terms of complexity and functionality.
If your PMM instance is not connected to Percona Platform, PMM can only download the basic set of Anonymous advisor checks. As soon as you connect your PMM instance to Percona Platform, has access to additional checks, available only for Registered PMM instances.
If you are a Percona customer with a Percona Customer Portal account, you also get access to Paid checks, which offer more advanced database health information.
Checks results¶
The checks can be executed manually or automatically. Manual checks can be executed individually, or all together.
Automatic checks run every 24 hours by default. You can configure this interval in PMM > Advanced Settings > Execution intervals by changing the label interval for each check, or by changing the default intervals to custom ones:
- Standard- 24 hours
- Rare - 78 hours
- Frequent - 4 hours
The results are sent to PMM Server where you can review any failed checks on the Home Dashboard > Failed Advisor Checks panel. The summary count of failed checks is classified as Critical, Major and Trivial:
Check results data always remains on the PMM Server and are not related to anonymous data sent for Telemetry purposes.
For information on configuring PMM Advisors, see the Percona Monitoring and Management documentation.
List of checks¶
Percona Platform hosts all Advisor checks available for MySQL, MongoDB and PostgreSQL databases connected to PMM. Check the full list of checks and their availability to anonymous, registered and paid PMM instances in the table below:
| Check Name | Description | Tier |
|---|---|---|
| MongoDB Active vs Available Connections | Checks the ratio between Active and Available connections. | Registered, Paid |
| MongoDB Authentication | Warns if MongoDB authentication is disabled. | Anonymous, Registered, Paid |
| MongoDB Security AuthMech | Warns if MongoDB is not using the default SHA-256 hashing as SCRAM authentication method. | Paid |
| MonogDB IP Bindings | Warns if MongoDB network binding is not set as recommended. | Anonymous, Registered, Paid |
| MongoDB CVE Version | Shows an error if MongoDB or Percona Server for MongoDB version is not the latest one with CVE fixes. | Anonymous, Registered, Paid |
| MongoDB Journal Check | Warns if journal is disabled. | Registered, Paid |
| MongoDB Localhost Authentication Bypass is Enabled | Warns if MongoDB localhost bypass is enabled. | Anonymous, Registered, Paid |
| MongoDB Non-Default Log Level | Warns if MongoDB is not using the default log level. | Paid |
| MongoDB Profiling Level | Warns when the MongoDB profile level is set to collect data for all operations. | Registered, Paid |
| MongoDB Read Tickets | Warns if MongoDB is using more than 128 read tickets. | Paid |
| MongoDB Replica Set Topology | Warns if the Replica Set cluster has less than three members. | Registered, Paid |
| MongoDB Version | Warns if MongoDB or Percona Server for MongoDB version is not the latest one. | Anonymous, Registered, Paid |
| MongoDB Write Tickets | Warns if MongoDB network is using more than 128 write tickets. | Paid |
| Check if Binaries are 32-bits | Notifies if version_compatible_machine equals i686. | Anonymous, Registered, Paid |
| MySQL Automatic User Expired Password | Notifies if version_compatible_machine equals i686. | Registered, Paid |
| MySQL InnoDB flush method and File Format check | Checks the following settings: innodb_file_format, innodb_file_format_max, innodb_flush_method and innodb_data_file_path | Registered, Paid |
| MySQL Checks based on values of MySQL configuration variables | Checks the following settings: innodb_file_format,innodb_file_format_max,innodb_flush_method and innodb_data_file_path. | Paid |
| MySQL Binary Logs checks, Local infile and SQL Mode checks | Warns about non-optimal settings for Binary Log, Local Infile and SQL mode. | Registered, Paid |
| MySQL Configuration Check | Warns if parameters not following Percona best practices, for infile, replication threads and replica checksum. | Paid |
| MySQL Users With Granted Public Networks Access | Notifies about MySQL accounts allowed to be connected from public networks. | Registered, Paid |
| MySQL User Check | Runs a high-level check on user setup | Registered, Paid |
| MySQL Advanced User Check | Runs a detailed check on user setup | Paid |
| MySQL Security Check | Runs a detailed check on user setup | Paid |
| MySQL Test Database | This check returns a notice if there is database with name ‘test’ or ‘test_%’. | Registered, Paid |
| MySQL Version | Warns if MySQL, Percona Server for MySQL, or MariaDB version is not the latest one. | Anonymous, Registered, Paid |
| PostgreSQL Archiver is Failing | Verifies if the archiver has failed. | Paid |
| PostgreSQL Cache Hit Ratio | Checks database hit ratio and complains when this is too low. | Paid |
| PostgreSQL Configuration Change Requires Restart/Reload | Warns when a configuration was changed and requires a server restart/reload | Registered, Paid |
| PostgreSQL fsync is Disabled | Shows an error if the fsync configuration is disabled, as this can result in unrecoverable data corruption. | Anonymous, Registered, Paid |
| PostgreSQL Autovacuum Logging Is Disabled | Shows an error if the fsync configuration is disabled, as this can result in unrecoverable data corruption. | Paid |
| PostgreSQL Checkpoints Logging Is Disabled | Notifies if the log_checkpoints configuration option is not enabled. | Paid |
| PostgreSQL Max_connections is too high | Notifies if the max_connections setting is set above 300. | Anonymous, Registered, Paid |
| PostgreSQL Stale Replication Slot | Warns for stale replication slots since these can lead to WAL file accumulation and DB server outage. | Paid |
| PostgreSQL Super Role | Notifies if there are users with superuser privileges. | Anonymous, Registered, Paid |
| PostgreSQL Version Check | Warns if the PostgreSQL minor or major versions are not the latest, and shows an error if the major version is 9.4 or older. | Anonymous, Registered, Paid |