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Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Display Postgres server logs output in terminal and record to logs postgres log file location linux at same time up vote 2 down vote favorite 2 I'm running Postgres 9.1 (Homebrew installation on Mac OSX) and I'd like to monitor my postgres server more closely. My question relates to logs. I'd like to get the logs displaying in a terminal pane. Here's what the Postgres docs say about the logs: "On Unix-like systems, by default, the server's standard output and standard error are sent lock file "postmaster.pid" already exists to pg_ctl's standard output (not standard error). The standard output of pg_ctl should then be redirected to a file or piped to another process such as a log rotating program like rotatelogs; otherwise postgres will write its output to the controlling terminal (from the background) and will not leave the shell's process group. On Windows, by default the server's standard output and standard error are sent to the terminal. These default behaviors can be changed by using -l to append the server's output to a log file. Use of either -l or output redirection is recommended." So, when I get my postgres server running with the following: pg_ctl start -D /usr/local/var/postgres The logs display in the terminal window. When I run: pg_ctl start -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log the logs go to my logfile and don't display in terminal. In short, it would be great if anyone can tell me what command I use after I've directed logs to the file (with the second command) to make the logs also appear at the command line. It helps when I'm developing (in Django) to watch the SQL statements get executed in real time. postgresql psql share|improve this question asked Aug 4 '12 at 3:38 Pat 2
9.0 PostgreSQL 9.3.14 Documentation Prev Up Chapter 18. Server Configuration Next 18.8. Error Reporting and Logging 18.8.1. Where To Log log_destination (string) PostgreSQL supports several methods for
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logging server messages, including stderr, csvlog and syslog. On Windows, eventlog is also supported. restart postgres mac Set this parameter to a list of desired log destinations separated by commas. The default is to log to stderr
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only. This parameter can only be set in the postgresql.conf file or on the server command line. If csvlog is included in log_destination, log entries are output in "comma separated value" (CSV) format, which http://stackoverflow.com/questions/11805720/display-postgres-server-logs-output-in-terminal-and-record-to-logs-at-same-time is convenient for loading logs into programs. See Section 18.8.4 for details. logging_collector must be enabled to generate CSV-format log output. Note: On most Unix systems, you will need to alter the configuration of your system's syslog daemon in order to make use of the syslog option for log_destination. PostgreSQL can log to syslog facilities LOCAL0 through LOCAL7 (see syslog_facility), but the default syslog configuration on most platforms will https://www.postgresql.org/docs/9.3/static/runtime-config-logging.html discard all such messages. You will need to add something like: local0.* /var/log/postgresql to the syslog daemon's configuration file to make it work. On Windows, when you use the eventlog option for log_destination, you should register an event source and its library with the operating system so that the Windows Event Viewer can display event log messages cleanly. See Section 17.11 for details. logging_collector (boolean) This parameter enables the logging collector, which is a background process that captures log messages sent to stderr and redirects them into log files. This approach is often more useful than logging to syslog, since some types of messages might not appear in syslog output. (One common example is dynamic-linker failure messages; another is error messages produced by scripts such as archive_command.) This parameter can only be set at server start. Note: It is possible to log to stderr without using the logging collector; the log messages will just go to wherever the server's stderr is directed. However, that method is only suitable for low log volumes, since it provides no convenient way to rotate log files. Also, on some platforms not using the logging collector can result in lost or garbled log output, because multiple processes
Postgresapp 9.3.5.1 and later keep a https://postgresapp.com/documentation/troubleshooting.html server log. The log is inside the data directory, named postgres-server.log. Try starting the server manually For debugging, it is often http://alvinalexander.com/blog/post/postgresql/how-start-postgres-postgresql-server-mac-osx useful to try starting the server manually: Check in preferences what your data directory is(default: /Users/USERNAME/Library/Application Support/Postgres/var-9.3) Quit Postgres.app Open the log file Terminal and type /Applications/Postgres.app/Contents/Versions/9.3/bin/postgres -D "DATA_DIRECTORY" (replace DATA_DIRECTORY with your data directory, make sure to include the quotes because the path might contain spaces) Now you should see a more detailed error message why the server failed to start Resetting Postgres.app If log file location you somehow mess up your Postgres.app installation, here’s how to start fresh: Quit Postgres.app Open Activity Monitor, see if any processes name postgres are running. If so, kill them. Kill the process with the lowest pid first; child processes are respawned automatically after killing them. Delete the Folder ~/Library/Application Support/Postgres Open Postgres.app again After a few moments a new database should be initialised Technical Support If you run into any issues using Postgres.app, your first stop should be the issue tracker on Github. You can also ask @PostgresApp on Twitter. Help others If you encounter an issue and find a way to fix it, consider contributing to this documentation. This page is hosted on Github. Fork it, improve it and send a pull request!
intellij (4) java (429) jdbc (26) swing (74) jsp (9) latex (26) linux/unix (289) mac os x (315) mysql (54) ooa/ood (11) perl (156) php (97) postgresql (17) programming (43) ruby (56) scala (640) sencha (23) servlets (10) technology (84) testing (13) uml (24) zen (47) Mac OS X Postgresql: How to start a Postgres server on a Mac By Alvin Alexander. Last updated: June 3 2016 Wow, it had been a long time since I last started Postgres on my Mac computer (a MacBook Pro, to be specific), and it took almost almost 20 minutes to remember how to do it. So, to keep that from happening again, here's a quick tip on how to start Postgres (Postgresql) on a Mac OS X computer. Step 1: Log in as the postgres user A long time ago I followed this Apple tutorial on how to install Postgress on a Mac. After I finished that installation, a "postgres" user account was created on my Mac during the installation process. So, Step 1 of starting Postgres is to open a Terminal window, and switch over to that user account, like this: su - postgres After issuing this command, you'll also need to provide the password for the "postgres" user. Step 2: Issue the startup command Once you're logged in as the postgres user, you just need to make sure your path includes the Postgres bin directory, and then issue the command to start Postgres. Here's how I include the Postgres bin directory in my path: export PATH=$PATH:/usr/local/pgsql/bin And here's the command I use to start the Postgres server: /usr/local/pgsql/bin/pg_ctl -D /usr/local/pgsql/data -l logfile start (As you can see from these commands, the root directory of the Postgres server on my Mac computer is /usr/local/pgsql.) Bonus: How to create and connect to a Postgresql database As a quick bonus (and a reminder to myself), here's how you create and then use a Postgres database. First, the command to create a new Postgres database named test: createdb test Next, you can connect to this new test database with the following command: psql test Note that I'm doing all this without specifying the database user I want to connect as. Postgres is smart enough