Grenoble, France - September 30th, 2021 ## pgCluu, PostgreSQL Cluster Utilization
pgCluu is a Perl program used to perform a full audit of a PostgreSQL Cluster performances. It is divided in two parts, a collector used to grab statistics on the PostgreSQL server using psql and sar, a reports builder that will generate all HTML and charts output. New or enhanced reports/features: * Add collect and report of unused trigger functions. * Add system statistics dedicated to PostgreSQL process through stats reported by pidstat. * Add report of CPU scaling_governor to check if it set to powersave, setting it to performances can improve performances up to 20% following the PostgreSQL load. For more information on this kernel parameter see [https://wiki.archlinux.org/index.php/CPU_frequency_scaling#Scaling_governors](https://wiki.archlinux.org/index.php/CPU_frequency_scaling#Scaling_governors) New command line options: * Add command line option -t | --lock-timeout with default to 3 seconds to self terminate a SQL query that could be lock by the activity of an other session like a drop table for example. New configuration directives : * Add STATS_REPORT_OUTDIR configuration directive to pgcluu.conf to set the directory where the pgCluu reports will be saved. Default to /var/lib/pgcluu/report/. Backward compatibility: - Change default retention time to 30 days instead of no storage limit to avoid possible out of memory on uncontrolled installation. See [ChangeLog](https://github.com/lzlabs/pgcluu/releases/tag/v3.2) for a complete list of changes and bug fixes. ## About The goal of this project is to provide a complete PostgreSQL auditing tool that don't need any dependency to be run easily to audit a local or remote server. If you just have a sar output file, pgCluu can also be use to draw graphs about the system utilization from this file. pgCluu is a collection of tools published under the PostgreSQL License to be shared, any one is welcome to contribute. For more information take a look at [http://pgcluu.darold.net/](http://pgcluu.darold.net/) View a sample report at [http://pgcluu.darold.net/example/index.html](http://pgcluu.darold.net/example/index.html) ## Links pgCluu is created and maintained by Gilles Darold. * Web/Demo site: [http://pgcluu.darold.net/](http://pgcluu.darold.net/) * Download: [https://github.com/darold/pgcluu/releases](https://github.com/darold/pgcluu/releases) * Development: [https://github.com/darold/pgcluu](https://github.com/darold/pgcluu) * Documentation: [https://github.com/darold/pgcluu/blob/master/README](https://github.com/darold/pgcluu/blob/master/README)
