NVM node is installed under Ubuntu19.04 but local pm2 deploy production update will report errors such as pm2: command not found
On the remote server
root#vultr:/usr/bin# git --version
git version 2.20.1
root#vultr:/usr/bin# nvm --version
0.34.0
root#vultr:/usr/bin# node -v
v10.15.3
root#vultr:/usr/bin# npm -v
6.4.1
On the local server
pm2 deploy production update
--> Deploying to production environment
--> on host 202.182.98.13
○ deploying origin/master
○ executing pre-deploy-local
○ hook pre-deploy
○ fast forward master
Already on 'master'
Your branch is up to date with 'origin/master'.
From github.com:zq0904/pm2
Updating d79b633..2fe1d22
Fast-forward
README.md | 3 ++-
ecosystem.config.js | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
* branch master -> FETCH_HEAD
d79b633..2fe1d22 master -> origin/master
○ executing post-deploy `git pull && npm install && pm2 reload ecosystem.config.js --env production`
Already up to date.
npm WARN 06-pm2#1.0.0 No repository field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.9 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
up to date in 3.997s
pm2: command not found
post-deploy hook failed
Deploy failed
1
I can do it on a remote server
whereis npm
lh -s /root/.nvm/versions/node/v10.15.3/bin/node /usr/bin/node
lh -s /root/.nvm/versions/node/v10.15.3/bin/npm /usr/bin/npm
lh -s /root/.nvm/versions/node/v10.15.3/bin/pm2 /usr/bin/pm2
That would solve the problem，
But I don't understand why，
The server can already output NPM node pm2 and other versions，
But why do I have to set up a soft connection?
Is there any good solution to this troublesome problem，
Thank you very much！
I am not sure what's the route cause of this issue. But, it was happening to me when I created a new user in AWS EC2 ubuntu instance and try to deploy my NodeJS app using pm2 through that new user.
I followed this github thread and this particular comment solved my issue. Simply comment the following line in your server's .bashrc file
#If not running interactively, don 't do anything
case $ - in
*
i * );;
*) return;;
esac
I have just installed Debian Lenny with Apache, MySQL, and PHP and I am receiving a PDOException could not find driver.
This is the specific line of code it is referring to:
$dbh = new PDO('mysql:host=' . DB_HOST . ';dbname=' . DB_NAME, DB_USER, DB_PASS)
DB_HOST, DB_NAME, DB_USER, and DB_PASS are constants that I have defined. It works fine on the production server (and on my previous Ubuntu Server setup).
Is this something to do with my PHP installation?
Searching the internet has not helped, all I get is experts-exchange and examples, but no solutions.
You need to have a module called pdo_mysql. Looking for following in phpinfo(),
pdo_mysql
PDO Driver for MySQL, client library version => 5.1.44
The dsn in your code reveals you are trying to connect with the mysql driver. Your error message indicates that this driver is unavailable.
Check that you have the mysql extension installed on your server.
In Ubuntu/Debian you check for the package with:
dpkg --get-selections | grep php | grep mysql
Install the php5-mysql package if you do not have it.
In Ubuntu/Debian you can use:
PHP5: sudo apt-get install php5-mysql
PHP7: sudo apt-get install php7.0-mysql
Lastly, to get it working, you will need to restart your web-server:
Apache: sudo /etc/init.d/apache2 restart
Nginx: sudo /etc/init.d/nginx restart
Update: newer versions should use php-sqlite3 package instead of php5-sqlite. So use this, if you are using a recent ubuntu version:
sudo apt-get install sqlite php-sqlite3
Original answer to question is here:
sudo apt-get install sqlite php5-sqlite
sudo /etc/init.d/apache2 restart
If your phpinfo() is not showing the pdo_sqlite line (in my case, on my Ubuntu Server), you just need to run the lines above and then you'll be good to go.
For newer versions of Ubuntu that have PHP 7.0 you can get the php-mysql package:
sudo apt-get install php-mysql
Then restart your server:
sudo service apache2 restart
I had the same issue. The solution depends on OS. In my case, i have debian, so to solve it:
Updated my php version from (php5 to php7)
Install php-mysql and php7.0-mysql
apt-get install php-mysql
apt-get install php7.0-mysql
I edited my php.ini locate at /etc/php/7.0/apache2/php.ini
uncomment the line : extension=php_pdo_mysql.dll
Then restart apache:
service apache2 restart
This solves my problem
On my Windows machine, I had to give the absolute path to the extension dir in my php.ini:
extension_dir = "c:\php5\ext"
Check if the module is available with php -m | grep pdo_mysql.
If not, for PHP 7.2, you can install relevant package with sudo apt install php7.2-mysql.
Use similar command on other PHP versions and package managers.
On Ubuntu just execute
sudo apt-get install php5-mysql
sudo apt-get install php-mysql
worked well on ubuntu and php 7
When adding these into your php.ini ensure the php_pdo.dll reference is first before the db drivers dlls otherwise this will also cause this error message too. Add them like this:
[PHP_PDO]
extension=php_pdo.dll
[PHP_PDO_MYSQL]
extension=php_pdo_mysql.dll
for Windows 8.1/10 in :\\php.ini file you should uncomment line "extension=pdo_mysql"
Did you check your php.ini (check for the correct location with phpinfo()) if MySQL and the driver is installed correctly?
For PHP 5.5 on CentOS I fixed this by installing the php55-mysqlnd package.
sudo yum -y install php55w-mysqlnd # For Webtatic
sudo yum -y install php55u-mysqlnd # For Remi
For help installing, write a comment as it depends on the way PHP is installed on your system. Available repo's are webtatic and remi.
Check if extension_dir in php configuration file set correctly. Try to comment/uncomment some extensions and see if it's reflected on phpinfo().
If it doesn't then either php config file cannot be loaded (wrong location) extension_dir is commented or set to the wrong location.
In my case my DSN string was incorrect, specifically it did not contain mysql://. I would have expected a different error message, perhaps something like 'DSN string does not specify driver/protocol.'
Adding mysql:// to the beginning of the DSN string resolved the issue.
I had the same problem during running tests with separate php.ini. I had to add these lines to my own php.ini file:
[PHP]
extension = mysqlnd.so
extension = pdo.so
extension = pdo_mysql.so
Notice: Exactly in this order
I spent the last day trying to figure out why I was getting the following error. I am running Ubuntu 14.04.
The Problem:
I noticed that my PHP-CLI version was running php7.0 but php_info() (the web version) was displaying php 5.5.9. Even though php_info() said pdo was enabled, using the command line (CLI) wasn't recognizing the pdo_mysql command. It turns out that mysql was enabled for my old version but not the CLI version. All I did was install mysql for php7.0 and it was able to work.
This is what worked:
To check the version:
php -v
To install mysql for php7.0
sudo apt-get install php7.0-mysql
1) make sure your CLI version is the same as your web version
2) If they are different, make sure your CLI version has the mysql plug-in since it doesn't come with it as a default.
Incorrect installation of PHP was being called
I was experiencing the same problem. And I hope this would help someone who is having a similar issue as me.
Scenario
OS = Windows 10
Platform = XAMPP
PHP Version = 7 (Multiple Version seem to have been installed in the PC)
I created phpinfo.php file in the public folder and run the phpinfo() to look for the location of my php.ini file.
PHP.ini Location = c:\xampp\php\php.ini
Problem
Calling c:\xampp\htdocs> php -v returned PHP 7.2.3 but phpinfo.php showed PHP 7.2.2.
Solution
Instead of calling
php artisan migrate:install
which gave me this error, I used
c:\xampp\php\php artisan migrate:install
and it worked.
The problem is a missing php to mysql library. In CentOs i fixed it by running
# yum install php-mysql and then restarting apache with # /bin/systemctl restart httpd.service Note that the naming is slightly different from debian/ubuntu based distros, php->php5 and httpd->apache2.
I extremely recommend mysqllnd instead of mysql because of you would have a lot of problems like number converting and bit type evaluates problem with mysql extension.
on ubuntu install mysqllnd with following command:
sudo apt-get install php5-mysqlnd
In my case, I was using PDO with php-cli, and it worked fine.
Only when I tried to connect from apache, I got the "missing driver" issue, which I didn't quite understand.
A simple apt-get install php-mysql solved it. (Ubuntu 16.04 / PHP7. credits go to the selected answer & Ivan's comment)
Hope it can help.
PHP Fatal error: Uncaught PDOException: could not find driver
I struggled and struggled with "apt install php-mysql php7toInfinity and don't forget sqlite-what-ever's" and just could not get rid of this error message until I went back to basics and reset the file-permissions on the web-site in question.
These 3 commands reset file and folder permissions on the web-site and got it to work again.
cd /var/www/web-site-name.com/web/
# find (sub) directories and change permissions
find . -type d -exec chmod 755 {} \;
# find files and change permissions
find . -type f -exec chmod 664 '{}' \;
I Fixed this issue on my Debian 6.
Normally I just had installed php5-common package. After installation, you have to restart your web server (apache or nginx depending on which one you installed).
Then I just do an lsof on the apache process id (lsof -p process_id) as followed :
sudo lsof -p 1399 #replace 1399 by your apache process id
apache2 1399 root mem REG 254,2 80352 227236 /usr/lib/php5/20090626/xmlrpc.so
apache2 1399 root mem REG 254,2 166496 227235 /usr/lib/php5/20090626/suhosin.so
apache2 1399 root mem REG 254,2 31120 227233 /usr/lib/php5/20090626/pdo_mysql.so
apache2 1399 root mem REG 254,2 100776 227216 /usr/lib/php5/20090626/pdo.so
apache2 1399 root mem REG 254,2 135864 227232 /usr/lib/php5/20090626/mysqli.so
As you can see above, the modules are installed on a file path not known or guided by common library path: /usr/lib/php5/20090626/. For your installation, it may be different, but only the path of pdo_mysql.so, pdo.so, mysqli.so. So, this is why Drupal or any other php engine couldn't find the library and shows that error: PDOException: could not find driver
I just don't know why it is installed on such a weird path, for me it's just a bug in the library package installation script in debian 6.
I solved the issue by creating a symbolic for all the files under /usr/lib/php5/20090626/ to
/usr/lib/php5/ with this command :
ln -s /usr/lib/php5/20090626/* /usr/lib/php5/
$DB_TYPE = 'mysql'; //Type of database<br>
$DB_HOST = 'localhost'; //Host name<br>
$DB_USER = 'root'; //Host Username<br>
$DB_PASS = ''; //Host Password<br>
$DB_NAME = 'database_name'; //Database name<br><br>
$dbh = new PDO("$DB_TYPE:host=$DB_HOST; dbname=$DB_NAME;", $DB_USER, $DB_PASS); // PDO Connection
This worked for me.
I faced the same issue after I removed the php5 package (that includes all the drivers as well) in order to install php7 package. I actually installed php7 package without a mysql module.
I managed to solve it by typing in the terminal:
1) $ apt-cache search php7
which lists all the modules, looking through the modules I found,
php7.0-mysql - MySQL module for PHP
2) $ sudo apt-get install php7.0-mysql
That's it. It worked for me in my linux system.
(use the appropriate php version, yours could be php5)
Just one other thing to confirm as some people are copy/pasting example code from the Internet to get started. Make sure you have MySQL entered here:
... $dbh = new PDO ("mysql: ...
In some examples this shows
$dbh = new PDO ("dblib ...
For those using Symfony2/3 and wondering why you're getting this error. If you're using "mapping_types", you might encounter this error. The reason is that "mapping_types" is placed at the wrong level. For instance :
doctrine:
dbal:
mapping_types:
set: string
This "mapping_types" must be placed at this level :
doctrine:
dbal:
#To counter the error caused by 'mapping_types'
connections:
default:
server_version: %database_server_version%
mapping_types:
set: string
I hope this helps
I found the solution here : https://github.com/doctrine/DoctrineBundle/issues/327
Everywhere I go I read that the path of extension_dir should be changed from ext to an absolute path. It worked for me. However, when trying to build a server of my colleague's PC, I had to let the value to ext instead of putting an absolute path.
If you did put an absolute path and it does the extension is still not found, considerer trying both with the absolute path and ext.
Check correct path in extension_dir in you phpinfo().
Had the same issue, because I forgot to go into my virtual machine. If I go to my local directory like this:
cd /www/homestead/my_project
php artisan migrate
that error will appear. But it works on my virtual machine
cd ~/homestead
vagrant ssh
cd /www/homestead/my_project
php artisan migrate
I made the attempt at enabling EPEL on my Fedora 22 machine by running
wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
Then
sudo rpm -ivh epel-release-7-5.noarch.rpm
And now when I run
dnf repolist
I get the following
[sinux1#horrible-host ~]$ sudo dnf repolist
Extra Packages for Enterprise Linux 7 - x86_64 1.8 MB/s | 9.0 MB 00:05
Failed to open: /var/cache/dnf/epel-2b6dfc5904c26562/repodata/49c4e3bd54f19136521be9b254830c954369cc22ce1b661db502ebef13b0004c-updateinfo.xml.bz2.
[sinux1#horrible-host ~]$
I'm stuck and not sure what my next step is. How can I reverse what I did, and what would have been the proper way of enabling EPEL?
Thanks for any input
This is what appears to have worked for me.
Remove the epel repo
rm -rf /etc/yum.repos.d/epel*
then try install epel via dnf
dnf clean all
dnf install epel-release
I did the same as Sinux Tine and ended up in some sort of deadlock.
First try to do like Rup says.
If everything fails, try the following as a last resort. It worked for me.
> su
> cd /var/cache/dnf/epel-2b6dfc5904c26562/repodata
> mkdir throwaway
> mv 49c4e3bd54f19136521be9b254830c954369cc22ce1b661db502ebef13b0004c-updateinfo.xml.bz2 throwaway
That effectively deletes the file which dnf says it cannot open.
When and if the problem is solved, you can delete the throwaway directory and its contents.
Current libsolv version does not have bz2 compression.
Solution: enable bunzip2 compression in libsolv, Basically 'yum update libsolv', then reinstall epel-release.
To complement the answer for Centos 7, I followed the next steps:
Download the libsolv-0.6.14-1.el7 wich was patched
Install it
sudo rpm -ivh libsolv-0.6.14-1.el7.centos.x86_64.rpm
If we get a conflict with the previous version
warning: libsolv-0.6.14-1.el7.centos.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID 1b6f9f55: NOKEY
Preparing... ################################# [100%]
file /usr/lib64/libsolv.so.0 from install of libsolv-0.6.14-1.el7.centos.x86_64 conflicts with file from package libsolv-0.6.11-1.el7.x86_64
file /usr/lib64/libsolvext.so.0 from install of libsolv-0.6.14-1.el7.centos.x86_64 conflicts with file from package libsolv-0.6.11-1.el7.x86_64
We proceed to remove the previous version
sudo yum erase libsolv-0.6.11-1.el7.x86_64
and install the patched libsolv package
sudo rpm -ivh libsolv-0.6.14-1.el7.centos.x86_64.rpm
We need to reinstall the dnf package manager, because it was removed after to remove the libsolv so we install with the following command.
sudo yum install dnf
We validate it using sudo dnf repolist now it, give us the right output.
Using metadata from Mon Jun 13 10:53:11 2016
repo id repo name status
base CentOS-7 - Base 9,007
I am trying to install mysql server in my AWS EC2 instance. I googled and executed the below command in the shell.
sudo yum install mysql-server
It throws the below connection timed out exception
Loaded plugins: priorities, update-motd, upgrade-helper
http://packages.us-west- 2.amazonaws.com/2014.03/main/201403504e47/x86_64/repodata/repomd.xml?instance_id=i-c82c93c3®ion=us-west-2: [Errno 12] Timeout on http://packages.us-west-2.amazonaws.com/2014.03/main/201403504e47/x86_64/repodata/repomd.xml?instance_id=i-c82c93c3®ion=us-west-2: (28, 'Connection timed out after 10001 milliseconds')
Trying other mirror.
Is this the right way to install mysql server?
Thanks.
installing mysql
From the current AWS EC2 documentation:
To install and start the LAMP web server
Connect to your instance.
To ensure that all of your software packages are up to date, perform a quick software update on your instance. This process may take a few minutes, but it is important to make sure you have the latest security updates and bug fixes.
Note
The -y option installs the updates without asking for confirmation. If you would like to examine the updates before installing, you can omit this option.
[ec2-user ~]$ sudo yum update -y
Now that your instance is current, you can install the Apache web server, MySQL, and PHP software packages. Use the yum groupinstall command to install multiple software packages and all related dependencies at the same time.
[ec2-user ~]$ sudo yum groupinstall -y "Web Server" "MySQL Database" "PHP Support"
Note
Non-Amazon Linux instances may have subtle differences in their group names. If the above command fails because of an invalid group name, use the yum grouplist command and scan the output for similar groups, such as "MySQL Database server" instead of "MySQL Database", and use the appropriate group name for your distribution.
Install the php-mysql package.
[ec2-user ~]$ sudo yum install -y php-mysql
I suppose you only need to install mysql, so you just need to run the 1st command, adapt the second to only grab mysql from the repositories, and skip the last one:
[ec2-user ~]$ sudo yum update -y
[ec2-user ~]$ sudo yum groupinstall -y "MySQL Database"
Depending on which version of linux you have installed (Amazon, Red Hat or CentOS), you may need to change the string "MySQL Database" to something else. The following command:
[ec2-user ~]$ sudo yum grouplist
Will list all the possible group install you may perform, so you need to filter it to get the right string:
[ec2-user ~]$ sudo yum grouplist | grep -i mysql
And choose the most appropriate one in that filtered result set.
network connectivity
Now, regarding your specific issue, the FAQs describes your problem as follow:
If the AMI cannot access the yum repositories, it will timeout and retry multiple times before completing the boot procedure. Possible reasons for this are restrictive firewall settings or VPC settings, which prevent access to the Amazon Linux AMI package repositories.
If you encounter this issue you can either modify your environment so that the Amazon Linux AMI can connect to its package repositories [...]
Unfortunately, no explanations are given as yo how you can change your environment to enable connectivity.
Apparently, by using the dashboard, you should be able to open outbound access to the port the yum servers are using:
AWS dashboard > ec2 > security groups > default group > outbound rule: ??? (HTTP*) 0.0.0.0/???
The usual port for yum server is 80, so just replace ??? above by 80 to have access to the repos. You also should replace 0.0.0.0 with the actual repository server address.
If this solution does not work, you might also try disabling the firewall altogether for the duration of the update:
[ec2-user ~]$ sudo /etc/init.d/iptables stop
<...Update commands as listed above...>
[ec2-user ~]$ sudo /etc/init.d/iptables start
Or
[ec2-user ~]$ sudo /sbin/service iptables stop
<...>
[ec2-user ~]$ sudo /sbin/service iptables start
I just delete all the files in /etc/resolv.conf dir
This error is being shown whenever I want to install any software via command line.
Even if i try to install softwares which I know are present at the source from where I am downloading.
Below is the full error message i am getting :
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package mysql-server is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'mysql-server' has no installation candidate
It worked for me.
If you have followed all the previous steps successfully and after running sudo apt-get install mysql-server you are getting an error then try this
sudo apt-get install mariadb-server
I experienced this issue when trying to install MySQL Server on Debian 10.
Here's how I fixed it:
The issue is caused by the MySQL server apt repository not being included in your system's software repository list. In Debian 10 for example, MariaDB, a community fork of the MySQL project, is packaged as the default MySQL variant.
So to fix this first, add the MySQL server apt repository to your system's software repository list. Follow these steps:
Go to the download page for the MySQL APT repository at:
https://dev.mysql.com/downloads/repo/apt/
Select and download the release package for your Linux distribution. You can use:
sudo wget https://the-download-link
In my case it was:
sudo wget https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb
Install the downloaded release package with the following command, replacing version-specific-package-name with the name of the downloaded package (preceded by its path, if you are not running the command inside the folder where the package is):
sudo dpkg -i version-specific-package-name.deb
In my case it was:
sudo dpkg -i mysql-apt-config_0.8.15-1_all.deb
Note: dpkg is used to install, remove, and inspect .deb software packages. The -i flag indicates that we’d like to install from the specified file.
During the installation, you’ll be presented with a configuration screen where you can specify which version of MySQL you’d prefer, along with an option to install repositories for other MySQL-related tools. The defaults will add the repository information for the latest stable version of MySQL and nothing else. This is what we want, so use the down arrow to navigate to the Ok menu option and hit ENTER.
You'll also be asked to select a repository to add. Choose 'debian buster' which has the package 'mysql-server' in it. After the adding this repository you can update the repository and use the below command to install MySQL.
sudo apt-get install mysql-server
The package will now finish adding the repository. Refresh your apt package cache to make the new software packages available:
sudo apt update
Note: If you ever need to update the configuration of these repositories, just run sudo dpkg-reconfigure mysql-apt-config, select new options, and then sudo apt-get update to refresh your package cache.
Install MySQL by the following command:
sudo apt-get install mysql-server mysql-client libmysqlclient-dev
Note: This installs the package for the MySQL server, as well as the packages for the client and for the database common files. During the installation, you are asked to supply a password for the root user for your MySQL installation.
The MySQL server is started automatically after installation. You can check the status of the MySQLserver with the following command:
sudo service mysql status
Stop the MySQL server with the following command:
sudo service mysql stop
To restart the MySQL server, use the following command:
sudo service mysql start
MySQL creates a default user called root. You can change the password to any password of your choice by logging in to MySQL console using socket authentication:
sudo mysql -u root
Then run the command below to change the password
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY 'your-preferred-password';
Reference:
A Quick Guide to Using the MySQL APT Repository
How To Install the Latest MySQL on Debian 10
That's all.
I hope this helps
You can install mysql by
sudo apt install default-mysql-server
--------
sudo service mysql status
● mariadb.service - MariaDB 10.3.31 database server
Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2022-02-09 13:19:33 +08; 33s ago
Docs: man:mysqld(8)
https://mariadb.com/kb/en/library/systemd/
Main PID: 18537 (mysqld)
Status: "Taking your SQL requests now..."
Tasks: 31 (limit: 4915)
Memory: 73.1M
CGroup: /system.slice/mariadb.service
└─18537 /usr/sbin/mysqld
run:
apt install default-mysql-server
which installs MariaDB unfortunately, but still responds to service mysql status
Most likely you are running on ubuntu. It is important to run apt-get update first.