Waiting for PostgreSQL 12 – Add log_statement_sample_rate parameter On 29th of November 2018, Alvaro Herrera committed patch: Add log_statement_sample_rate parameter This allows to set a lower log_min_duration_statement value without incurring excessive log traffic (which reduces performance). pgAudit v1.3.X is intended to support PostgreSQL 11. pgAudit v1.2.X is intended to support PostgreSQL 10. pgAudit v1.1.X is intended to support PostgreSQL 9.6. pgAudit v1.0.X is intended to support PostgreSQL 9.5. IOW, same results as before. Above is a common question/suggestion by the PostgreSQL DBA. PostgreSQL does not have many knobs to control logging. This is a crude profiling instrument, similar to the Unix getrusage() operating system facility. connecting to PostgreSQL. When things go wrong, being able to see exactly what is happening in your database Full logging via log_statement='all' is extremely important if you need to know exactly what commands a particular user or process has run. In addition, you probably You can configure Postgres standard logging on your server using the logging server parameters. Additional thing to check, per Rob Treat's request: We do have some clients that cannot do log_statement = 'all', but we still want ), 'ddl' or 'mod' (decent but flawed values), or 'all', which is what you should be using. We are starting this series “RDS – Managed by CloudDBA” to focus on the need for DBA in the cloud era . (I was trying the introduce the pgaudit on the PostgreSQL which is installed with binary file.) Documentation → PostgreSQL 10. Setting the PostgreSQL log_statement parameter to 'all' is always your best choice; this article will explain why. We’re software developers, design thinkers, and security experts. of the server the database is on. Only superusers can change these settings. Statements that contain simple syntax errors are not logged even by the log_statement = all setting, because the log message is emitted only after basic parsing has been done to determine the statement type. PostgreSQL does not have many knobs to control logging. On Debian-based systems this is located in /etc/postgresql/8.3/main/ (replacing 8.3 with the version of PostgreSQL you are running), and on Red Hat-based systems in /var/lib/pgsql/data/. Forensics/Auditing. log_destination (string) PostgreSQL supports several methods for logging server messages, including stderr, csvlog and syslog. Not every one of On Windows, eventlog is also supported. We design and build custom software solutions. Only superusers can change this setting. This can be useful when analyzing workloads with lots of short queries. Another objection is that writing all those logs is going to harm the performance These settings will override the default set in postgresql.conf for the DB/user they apply to.. Doing this is usually as simple as setting log_destination = 'syslog' in your postgresql.conf and adjusting your [r]syslog.conf. to have log_statement = 'all'. (usually 15 minutes, during a busy time of day), then turn it off and run pgsi to turn it off completely, as it is no longer needed. Note that even when enabled, this information is not visible to all users, only to superusers and the user owning the session being reported on, so it should not represent a security risk. run faster than log_min_duration_statement. make sure the logs are going to a different hard disk, thus reducing contention with Supported Versions: Current ... log_statement_stats cannot be enabled together with any of the per-module options. 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