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What is Pg_ctl in PostgreSQL?
pg_ctl is a utility for initializing a PostgreSQL database cluster, starting, stopping, or restarting the PostgreSQL database server (postgres), or displaying the status of a running server. The server is started in the background, and its standard input is attached to /dev/null (or nul on Windows).
How do I stop Postmaster postgres?
The PostgreSQL postmaster backend can be stopped in the same fashion that it is started—by passing the stop argument to pg_ctl . The application pg_ctl checks for the running postmaster process, and, if the stop command was executed by the user who owns the running processes (e.g., postgres ) the server is shut down.
When to delete log files in PostgreSQL?
Example: week. This way they overwrite each other every week. When I deploy without having to stop postgres. This way anything I see I know was after the deployment of my enhancements. I tried to just delete the file with postgres running. I found that it did not recreate the log
Which is the default logging collector in PostgreSQL?
The default is pg_log. When logging_collector is enabled, this parameter sets the file names of the created log files. The value is treated as a strftime pattern, so % -escapes can be used to specify time-varying file names.
How to disable time based logging in PostgreSQL?
When logging_collector is enabled, this parameter determines the maximum lifetime of an individual log file. After this many minutes have elapsed, a new log file will be created. Set to zero to disable time-based creation of new log files. This parameter can only be set in the postgresql.conf file or on the server command line.
Why is delete Cascade trigger slow in PostgreSQL?
As it turns out, those ON DELETE CASCADE triggers were slowing things down quite a bit, because those cascaded deletions were awfully slow. I solved the problem by creating indexes on the foreign key fields on the referencing tables, and I went from taking a bunch of hours for the deletion to a few seconds.