(EN) pg_stat_monitor: A cool extension for better database (PostgreSQL) monitoring
The pg_stat_monitor is the statistics collection tool based on PostgreSQL’s contrib module pg_stat_statements. PostgreSQL’s pg_stat_statements provides only basic statistics, which is sometimes not enough. The major shortcoming in pg_stat_statements is that it accumulates all the queries and statistics, but does not provide aggregated statistics or histogram information. In this case, a user needs to calculate the aggregate, which is quite expensive. Pg_stat_monitor provides the pre-calculated aggregates. pg_stat_monitor collects and aggregates data on a bucket basis. The size and number of buckets should be configured using GUC (Grand Unified Configuration). The buckets are used to collect the statistics and aggregate them in a bucket. The talk will cover the usage of pg_stat_monitor and how it is better than pg_stat_statements.
Speaker
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Ibrar AhmedPercona LLCIbrar Ahmed is a Senior Software Architect in Percona LLC. Prior to coming to open source development, he had vast experience in software design and development. His main focus was on system-level embedded development. After joining EnterpriseDB in 2006, an Enterprise PostgreSQL company, he started his career in open source development specifically in PostgreSQL. He has contributed to the PostgreSQL community as well as other open source communities. His contribution ranges from the main performance feature enhancements to various PostgreSQL modules. In the database field, he has experience in other well-known databases MySQL, Oracle, and NoSQL databases such as MongoDB and Hadoop. His experience is not limited to core databases, but with the tools related to databases like Hive, HBase, and Spark. He also worked on integrating these tools with PostgreSQL. Ibrar gave more than fifteen PostgreSQL talks in the last year in various parts of the World (PostgreConf-EU, PostgreConf-ASIA, PostgreConf-NY, Percona Lives, FOSDEM, etc). He also authored multiple books on PostgreSQL.