![]() ![]() The basic parameters on any of the platforms are as follows: Server : Now that we have located psql, we need to understand what it requires to connect to the database. On a Mac you should be able to locate psql under the Applications > PostgreSQL (version number) > SQL Shell (psql). ![]() On Windows, you can find psql in the Program Files, and you should be able to launch it in a command prompt simply by clicking on it. However, if it errors out, you can locate the psql utility by searching for the file with the following command on /]# find / -name psql This gives you the path, and also, since the OS knows the location, you will not need to browse for it. You can try the following command on the data]# which psql The easiest way to connect is to check whether you already have psql in your environment variables on not. To connect using psql you will first need to locate its location on the operating system that you might be using: i. PostgreSQL is supported on three major platforms. Since this is probably the first time you are trying to connect to a PostgreSQL database that you have installed, we will cover some of the possible scenarios you may encounter so you can start working in just a short period of time. So let’s take our first steps and get connected to PostgreSQL. Here I offer separate steps for users of different operating systems, where required in cases where the operating system is not specified, the steps can be treated as a universal approach, and are valid for any operating system that you are using. Since terminal/command line and pgAdmin are the most favored ways for connecting to PostgreSQL, I explain the basics of using both methodologies. ![]() Hope this helped you to kill processes on Linux and Mac.This is a two-part article for beginners who have installed the most advanced open source database, PostgreSQL, and are now looking to connect to it. Now, if you list the processes connected to port 5432 again, you will notice that pgAdmin4 is no longer there: lsof -i :5432ĬOMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME If you get an error saying you don’t have permission to kill this process as it might not have been started by your user, try adding sudo before the command (assuming you have admin privileges). With the PID in hands, let’s kill it: kill 31159 However, in our example, I know that pgAdmin4 is a strong candidate to be running our Postgres since it is the admin application, hence, let’s copy its process id (PID) 31159. Often you will find that it prints more processes than you were expecting. Java 42403 bgasparotto 134u IPv6 0xabf485c50bdb12b7 0t0 TCP localhost:57786->localhost:postgresql (ESTABLISHED) Java 42403 bgasparotto 126u IPv6 0xabf485c50bdb0737 0t0 TCP localhost:57785->localhost:postgresql (ESTABLISHED) PgAdmin4 31159 bgasparotto 22u IPv6 0xabf485c4f2d26737 0t0 TCP localhost:62091->localhost:postgresql (CLOSE_WAIT) PgAdmin4 31159 bgasparotto 21u IPv6 0xabf485c509f250b7 0t0 TCP localhost:61843->localhost:postgresql (CLOSE_WAIT) Which prints a list of processes connected to port 5432: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME First, let’s list the processes attached to port 5432: lsof -i :5432 Let’s say I would like to kill a database process such as Postgres, which in turn, usually runs on the standard port 5432. This tutorial will quickly show you how to to find and kill processes on Linux, Mac and other Unix based systems such as CentOS based on the port number. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |