I am trying to install postgresql for the meta data of hive on Amazon EC2 Linux machine.
And at that point, I am trying to connect postgresql outside docker image. Inside, I can connect the postgresql.
I tried this command:
[ec2-user#ip-****-***-** ~]$ sudo yum install postgresql-client -y
and the result:
Failed to set locale, defaulting to C
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
amzn2-core | 3.7 kB 00:00:00
No package postgresql-client available.
Error: Nothing to do
To ensure locale, I tried these ones:
[ec2-user#ip-***-***-*** ~]$ echo "$LANG"
en_US.UTF-8
[ec2-user#ip-***-***-*** ~]$ echo "$LC_CTYPE"
UTF-8
Then, I tried this one install postgresql-client lastly:
[ec2-user#ip-***-***-*** ~]$ sudo amazon-linux-extras install postgresql-client
Topic postgresql-client is not found.
I am not so familiar with these technologies, if you can help I will be so appreciated
Install postgresql package
sudo yum install postgresql
As mentioned by #Anon Coward in comments, this package contains the postgresql client. Check it with
yum search postgresql
If you get the error...
No match for argument: postgresql ...
I found that AWS Linux is a dynamic changing OS, so here is the current method + how to detect a new way to do this...
Current method (as of Oct 21, 2022)
(I have Machine Image (AMI): Amazon Linux 2022)
$ sudo yum update
$ sudo yum install postgresql13
$ psql --version
psql (PostgreSQL) 13.5
Future proof answer
Try this first ...
$ sudo yum update
$ sudo yum search "postgres"
... and look in the output for a line like this: postgresql13.aarch64 : PostgreSQL client programs. This tells you the current version of an installable client package name - in this case postgresql13. Now you know which package to install and avoid: No match for argument: postgresql error.
TLDR;
It seems, for Linux that Amazon now says to use yum directly vs. the old amazon-linux-extras here... Install software packages on an Amazon Linux instance. Then you wonder, how to know which package name to use to install it, which is here: Find software packages on an Amazon Linux instance. I used a small part of the name as a 'key' to search for: sudo yum search "postgres" which got me the answer, by looking at the output.
This currently works for my version of Amazon linux:
$ uname -a
Linux ip-0-0-0-0.ec2.internal 5.15.43-20.123.amzn2022.aarch64 #1 SMP Thu May 26 17:03:36 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux
This is a new instance with almost nothing added, not even additional yum archives, YMMV.
Related
I installed psql on my system without having added any new package sources. Later,I added postgres's package repo following the instructions on their website and ran sudo apt install postgres. I then ran sudo apt remove postgres.
Now, when I run sudo apt remove postgresql again, apt tells me "Unable to locate package postgresql". However, running dpkg -l | grep sql yields (among other things):
ii postgresql-14 14.5-0ubuntu0.22.04.1 amd64 The World's Most Advanced Open Source Relational Database
ii postgresql-15 15.1-1.pgdg22.04+1 amd64 The World's Most Advanced Open Source Relational Database
ii postgresql-client-14 14.5-0ubuntu0.22.04.1 amd64 front-end programs for PostgreSQL 14
ii postgresql-client-15 15.1-1.pgdg22.04+1 amd64 front-end programs for PostgreSQL 15
ii postgresql-client-common 246.pgdg22.04+1 all manager for multiple PostgreSQL client versions
ii postgresql-common 246.pgdg22.04+1 all PostgreSQL database-cluster manager
And running psql --version from the command line yields psql (PostgreSQL) 15.1 (Ubuntu 15.1-1.pgdg22.04+1).
Here are some questions, info about any is appreciated:
Why can't apt find the postgresql package even though psql is installed?
What package is psql part of and how do I figure that out? Does psql still exist on my system because it is part of a package that another package I have installed depends on?
I'm just interested in using the most recent LTS version of postgres (15.1 at the time I'm writing this). Do I need the version 14 packages which exist on my systems? If not, how do I remove them?
Edit: After sudo apt removeing postgresql-14 and postgresql-15, psql still exists on my system but gives the following error: psql: error: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory. Why does the psql command still work?
I have an Ubuntu 22 server on which I installed Postgres like this:
$ sudo apt-get install postgresql postgresql-contrib
It's been running for a while but I've just noticed I appear to have both versions 12 and 14 installed and running. For example:
$ sudo su postgres -c "psql"
psql (14.5 (Ubuntu 14.5-0ubuntu0.22.04.1), server 12.12 (Ubuntu 12.12-0ubuntu0.20.04.1))
and:
$ pg_lsclusters
Ver Cluster Port Status Owner Data directory Log file
12 main 5432 online postgres /var/lib/postgresql/12/main /var/log/postgresql/postgresql-12-main.log
14 main 5433 online postgres /var/lib/postgresql/14/main /var/log/postgresql/postgresql-14-main.log
I've seen solutions for fixing this by dumping the data, uninstalling both versions, and installing the specific version (such as this answer) but my questions are:
Why did this happen in the first place?
What is the correct way to install Postgres on a new server to ensure only one version is installed? Every tutorial I've seen (such as Digital Ocean's) do what I did.
I'm aware of how one can upgrade the PostgreSQL version on an RDS instance by using the management console's point-and-click. However, doing so leaves me with mismatched client and server psql versions. I want to upgrade the psql client on my ec2 instance. How does one do so?
You can also use amazon-linux-extras command to install new major versions of postgresql, for example:
$ sudo amazon-linux-extras install postgresql13
$ psql --version
psql (PostgreSQL) 13.3
Note that previous versions will remain enabled, but you can explicitly disable them (even though there's no uninstall, try yum to get rid of packages):
$ sudo amazon-linux-extras disable postgresql11
Tested on:
$ hostnamectl | grep -E -w 'Operating|Kernel|Architecture'
Operating System: Amazon Linux 2
Kernel: Linux 4.14.243-185.433.amzn2.aarch64
Architecture: arm64
The exact solution is going to vary depending on your AMI, but here's what worked for me on Amazon Linux:
sudo yum erase postgresql92 -y
sudo yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-6-x86_64/pgdg-ami201503-96-9.6-2.noarch.rpm -y
sudo yum install postgresql96 postgresql96-devel -y
sudo ln -sf /usr/pgsql-9.6/bin/pg_config /usr/bin/
You might not need the last step unless you're trying to get the pg gem working in Ruby on Rails.
I am on Unix. I have got postgresql-9.3 installed.
When I want to start the server using pg_ctl or postgres, the terminal gives me:
The program 'postgres' is currently not installed. You can install it by typing:
sudo apt-get install postgres-xc
Can't I start the server without this postgres-xc?
This must be remnants of the postgres-xc package you had installed previously.
Since you just installed postgresql-9.3 and don't seem to have any databases in use, yet, I suggest to completely purge all postgres packages.
sudo apt-get purge postgresql-9.2
sudo apt-get purge postgresql-xc
...
Until there's nothing left:
dpkg -l | grep postgres
Then start from scratch. Your instance of pg_ctl seems to belong to the package postgres-xc. This should be gone after you've uninstalled the package. Find out with one of these commands:
dpkg -S pg_ctl
dlocate pg_ctl
apt-file search pg_ctl
pg_ctlcluster is provided by the package postgresql-common.
pg_ctl is provided by the package postgresql-9.3.
More about starting Postgres in the manual.
It is possible you might be missing a few things.
Try:
sudo apt-get install postgresql-client and
sudo apt-get install postgresql postgresql-contrib
The message about installing xc is a dud, it's probably suggesting that based on what it scanned inside the xc repositories.
Here's a good reference to this problem and its solution:
https://dba.stackexchange.com/questions/72580/missing-the-pg-ctl-package-in-postgres-9-3-installation
Due to reasons a normal install of postgres will not place the postgres binary file in the path.
Adding the right directory to the path solves the problem (temporarily).
PATH=/usr/lib/postgresql/9.3/bin:$PATH
To make it permanent on my Ubuntu machine I added the line to /etc/environment this makes it work for all users.
The correct way to set the PATH is different for different systems, for more info see see:
How to permanently set $PATH on Linux?
You must install postgresql-client:
sudo install postgresql-client
Try to enter this command to the console:
sudo -u postgres psql
I'm trying to get it installed and use in ubuntu. Was following this page to install the additional instrumentation packages.
Install Server Instrumentation for Postgresql 8.4
To install Server Instrumentation for Postgresql 8.4 you may use the command line and type:
sudo apt-get install postgresql-contrib
Run the adminpack.sql script, simply type:
sudo -u postgres psql < /usr/share/postgresql/8.4/contrib/adminpack.sql
But I couldn't find adminpack.sql in 9.1 version.
In PostgreSQL 9.1 and later, extensions can be installed via the CREATE EXTENSION command:
sudo -u postgres psql
CREATE EXTENSION "adminpack";
Try locate adminpack. But first, run updatedb to make sure the locate database is up to date.
sudo updatedb
locate adminpack
The output is:
/usr/lib/postgresql/9.1/lib/adminpack.so
/usr/share/postgresql/9.1/extension/adminpack--1.0.sql
/usr/share/postgresql/9.1/extension/adminpack.control
Looks like this is old and comments are closed, so I'm opening another answer.
ldalonzo's answer is correct once you have all the components, but I found I also had to run:
sudo apt-get install postgresql-contrib-9.1
Looks like the bare postgresql package doesn't include the additional modules.
Once you install postgresql-contrib using below command
sudo apt-get install postgresql-contrib
Adminpack is located in the below path
/usr/share/postgresql/9.1/extension/adminpack--1.0.sql
To load the adminpack use the below command
sudo su postgres -c psql < /usr/share/postgresql/9.1/extension/adminpack--1.0.sql
Then
sudo /etc/init.d/postgresql restart