Percona Monitoring and Management 2.2.0

Date:	December 24, 2019

Percona Monitoring and Management (PMM) is a free and open-source platform for managing and monitoring MySQL, MongoDB, and PostgreSQL performance. You can run PMM in your own environment for maximum security and reliability. It provides thorough time-based analysis for MySQL, MongoDB, and PostgreSQL servers to ensure that your data works as efficiently as possible.

Main improvements in this release are:

• Alternative installation methods available for PMM 1.x are re-implemented for PMM 2: now PMM Server can be installed as a virtual appliance, or run using AWS Marketplace
• AWS RDS and remote instances monitoring re-added in this release include AWS RDS MySQL / Aurora MySQL instances, and remote PostgreSQL, MySQL, MongoDB, and ProxySQL ones
• The new Settings dashboard allows configuring PMM Server via the graphical interface

For PMM install instructions, see Installing PMM Server and Installing PMM Client.

Caution

PMM 2 is designed to be used as a new installation — please don’t try to upgrade your existing PMM 1 environment.

Improvements and new features

• PMM-4575: The new PMM Settings dashboard allows users to configure various PMM Server options: setting metrics resolution and data retention, enabling or disabling send usage data statistics back to Percona and checking for updates; this dashboard is now the proper place to upload your public key for the SSH login and to download PMM Server logs for diagnostics
• PMM-4907 and PMM-4767: The user’s AMI Instance ID is now used to setup running PMM Server using AWS Marketplace as an additional verification on the user, based on the Amazon Marketplace rules
• PMM-4950 and PMM-3094: Alternative AWS partitions are now supported when adding an AWS RDS MySQL or Aurora MySQL Instance to PMM
• PMM-4976: Home dashboard clean-up: “Systems under monitoring” and “Network IO” singlestats were refined to be based on the host variable; also avoiding using color as an indicator of state; “All” row elements were relinked to the “Nodes Overview” dashboard with regards to the selected host.
• PMM-4800: The pmm-admin add mysql command has been modified to make help text more descriptive: now when you enable tablestats you will get more detail on if they’re enabled for your environment and where you stand with respect to the auto-disable limit
• PMM-4969: Update Grafana to version 6.5.1
• PMM-5053: A tooltip was added to the Head Block graph on the Prometheus dashboard
• PMM-5068: Drill-down links were added to the Node Summary dashboard graphs
• PMM-5050: Drill-down links were added to the graphs on all Services Compare dashboards
• PMM-5037: Drill-down links were added to all graphs on the Services Overview dashboards
• PMM-4988: Filtering in Query Analytics have undergone improvements to make group selection more intuitive: Labels unavailable under the current selection are shown as gray/disabled, and the percentage values are dynamically recalculated to reflect Labels available within the currently applied filters
• PMM-4966: All passwords are now substituted with asterisk signs in the exporter logs for security reasons when not in debug mode
• PMM-527: node_exporter is now providing hardware monitoring information such as CPU temperatures and fan statuses; while this information is being collected by PMM Server, it will not be shown until a dedicated dashboard is added in a future release
• PMM-3198: Instead of showing All graphs for all services by default, MySQL Command/Handler Counters Compare dashboard now shows the predefined set of ten most informative ones, to reduce load on PMM Server at its first open

Fixed bugs

• PMM-4978: The “Top MySQL Questions” singlestat on the MySQL Instances Overview dashboard was changed to show ops instead of percentage
• PMM-4917: The “Systems under monitoring” and “Monitored DB Instances” singlestats on the Home dashboard now have a sparkline to make situation more clear with recently shut down nodes/instances
• PMM-4979: Set decimal precision 2 for all the elements, including charts and singlestats, on all dashboards
• PMM-4980: Fix “Load Average” singlestat on the Node Summary dashboard to show decimal value instead of percent
• PMM-4981: Disable automatic color gradient in filled graphs on all dashboards
• PMM-4941: Some charts were incorrectly showing empty fragments with high time resolution turned on
• PMM-5022: Fix outdated drill-down links on the Prometheus Exporters Overview and Nodes Overview dashboards
• PMM-5023: Make the All instances uptime singlestat on the Home dashboard to show Min values instead of Avg
• PMM-5029: Option to upload dashboard snapshot to Percona was disappearing after upgrade to 2.1.x
• PMM-4946: Rename singlestats on the Home dashboard for better clarity: “Systems under monitoring” to “Nodes under monitoring” and “Monitored DB Instances” to “Monitored DB Services”, and make the last one to count remote DB instances also
• PMM-5015: Fix format of Disk Page Buffers singlestat on the Compare dashboard for PostgreSQL to have two digits precision for the consistency with other singlestats
• PMM-5014: LVM logical volumes were wrongly sized on a new AWS deployment, resulting in “no space left on device” errors.
• PMM-4804: Incorrect parameters validation required both service-name and service-id parameters of the pmm-admin remove command to be presented, while the command itself demanded only one of them to identify the service.
• PMM-3298: Panic errors were present in the rds_exporter log after adding an RDS instance from the second AWS account
• PMM-5089: The serialize-javascript package was updated to version 2.1.1 because of the possibility of regular expressions cross-site scripting vulnerability in it (CVE-2019-16769). Please note PMM versions were not affected by this vulnerability, as serialize-javascript package is used as a build dependency only.
• PMM-5149: Disk Space singlestat was unable to show data for RDS instances because of not taking into account sources with unknown file system type

Contact us

For free technical help, visit the Percona Community Forum.

To report bugs or submit feature requests, open a JIRA ticket.

For paid support and managed or consulting services , contact Percona Sales.

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Last update: 2023-09-27