Error while starting apache2 server in ubuntu - mysql

systemctl start apache2.service
Getting this error:-
Job for apache2.service failed because the control process exited with error code.
See "systemctl status apache2.service" and "journalctl -xe" for details.
Logs of systemctl status apache2.service
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; disabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: failed (Result: exit-code) since Tue 2020-06-02 08:24:55 IST; 49s ago
Process: 9759 ExecStart=/usr/sbin/apachectl start (code=exited, status=127)
Jun 02 08:24:55 GS-4996 systemd[1]: Starting The Apache HTTP Server...
Jun 02 08:24:55 GS-4996 apachectl[9759]: /usr/sbin/apachectl: 174: /usr/sbin/apachectl: /usr/sbin/apache2: not found
Jun 02 08:24:55 GS-4996 apachectl[9759]: Action 'start' failed.
Jun 02 08:24:55 GS-4996 apachectl[9759]: The Apache error log may have more information.
Jun 02 08:24:55 GS-4996 systemd[1]: apache2.service: Control process exited, code=exited status=127
Jun 02 08:24:55 GS-4996 systemd[1]: apache2.service: Failed with result 'exit-code'.
Jun 02 08:24:55 GS-4996 systemd[1]: Failed to start The Apache HTTP Server.

Looks like the apache2 file is not available on server.
/usr/sbin/apache2 is provided by apache2-bin. apache2-bin is a dependency of the apache2 package, so apache2 will not work properly without it. Open the terminal and type:
sudo apt install --reinstall apache2-bin
sudo service apache2 start

Can you please attach error logs or the output of "systemctl status apache2.service"

My Best Solution No Need Restart .. After Long Time of se :)
sudo apt-get --reinstall install apache2-bin

Step 1: Stop nginx & Start apache
That's it.
service nginx stop
systemctl restart postgresql
systemctl restart apache2
systemctl status apache2.service

Related

MySQL "start" fails in ubuntu 20.04

I try to run the command:
sudo systemctl start mysql
And receive the following message:
Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.
Then when i type:
sudo systemctl status mysql.service
I get the following message:
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; disabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2021-03-02 11:32:34 IST; 58s ago
Process: 3383 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=1/FAILURE)
Mar 02 11:32:34 avivilloz systemd[1]: mysql.service: Scheduled restart job, restart counter is at 5.
Mar 02 11:32:34 avivilloz systemd[1]: Stopped MySQL Community Server.
Mar 02 11:32:34 avivilloz systemd[1]: mysql.service: Start request repeated too quickly.
Mar 02 11:32:34 avivilloz systemd[1]: mysql.service: Failed with result 'exit-code'.
Mar 02 11:32:34 avivilloz systemd[1]: Failed to start MySQL Community Server.
I searched for hours and couldn't come with a solution... does anyone know what could be the error?
The only thing i did before that was to install mysql-server with the command:
sudo apt-get install mysql-server
I tried installing and reinstalling, updating and upgrading ubuntu, i'm not sure if this would help.
Thanks in advance!
UPDATE:
I just checked, and don't have the /var/lib/mysql directory in my computer. But i failed to get it by reinstalling mysql server/client.
I fixed by "purging" every file related to mysql and reinstalling mysql-server:
sudo apt-get purge mysql-server mysql-client mysql-common
sudo apt-get install mysql-server
In my case the issue is raised b.c the server storage is full.
removing some logs and files solved and then restarting it solved the problem.

MYSQL don't start

Previously I performed the migration of my database from one directory to another within the server itself (/var/lib/mysql to /mnt/mysql) for lack of space.
When starting the server again, after having changed the /etc/my.cnf with the correct directory it returns me this error:
$ systemctl start mysqld
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
And when I run the systemctl status command on the mysqld service it returns me:
$ systemctl status mysqld.service
mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Ter 2019-07-16 09:34:44 -03; 44s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 31923 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS (code=exited, status=1/FAILURE)
Process: 31899 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 31923 (code=exited, status=1/FAILURE)
Status: "SERVER_BOOTING"
Error: 13 (Permission Denied)
Jul 16 09:34:43 srvepl.cettro.local systemd[1]: Starting MySQL Server...
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: mysqld.service: main process exited, code=exited, status=1/FAILURE
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: Failed to start MySQL Server.
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: Unit mysqld.service entered failed state.
Jul 16 09:34:44 srvepl.cettro.local systemd[1]: mysqld.service failed.
If it is permission error, how do I free the server to accept such a directory?
Note: I am using CentOS 7
Thank you!!
If you are using Linux or Unix Server then you should check the permissions of the user to access the service. Here I can see that the user which is logged in can't access the service because of the permission problem.
Try with.
sudo systemctl start mysqld;
Or try sudo su;, enter the creds of the superuser and then try to check the service status.
Or login as superuser and then try to start the service.
Hope this may help you.
After searching i discovered that the error was the 'enforcing' permission of SELINUX.
The answer to fix this problem is:
$ sudo setenforce 0
And the server went up normally.
Are you logged in with root user?
If no, try with sudo.
Otherwise, I think is better to restart your system and try again.
If you aren't expert in linux centos don't manipulate anything.
uninstall mysql and reinstall it.

Can't start mysql server after updating Ubuntu 18.4

first i have tried to uninstall both of them
root#thaali:/etc/mysql# sudo apt-get remove --purge mysql*
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package mysql.cnf
E: Couldn't find any package by glob 'mysql.cnf'
E: Couldn't find any package by regex 'mysql.cnf'
E: Unable to locate package mysql.conf.d
E: Couldn't find any package by glob 'mysql.conf.d'
E: Couldn't find any package by regex 'mysql.conf.d'
Then i have tried to install them
root#thaali:/etc/mysql# sudo apt-get install mysql-server mysql-client
Reading package lists... Done
Building dependency tree... 50%
Building dependency tree
Reading state information... Done
mysql-client is already the newest version (5.7.26-0ubuntu0.19.04.1).
mysql-server is already the newest version (5.7.26-0ubuntu0.19.04.1).
0 upgraded, 0 newly installed, 0 to remove and 13 not upgraded.
This is what happen when i tried to restart
root#thaali:/etc/mysql# sudo service mysql start
Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.
This is what happened when i try to systemctl
root#thaali:/etc/mysql# systemctl status mysql.service
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; bad; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2019-05-29 22:07:43 +0530; 6min ago
Process: 21283 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=1/FAILURE)
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Control process exited, code=exited, status=1/FAILURE
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Failed with result 'exit-code'.
මැයි 29 22:07:43 thaali systemd[1]: Failed to start MySQL Community Server.
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Service RestartSec=100ms expired, scheduling restart.
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Scheduled restart job, restart counter is at 5.
මැයි 29 22:07:43 thaali systemd[1]: Stopped MySQL Community Server.
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Start request repeated too quickly.
මැයි 29 22:07:43 thaali systemd[1]: mysql.service: Failed with result 'exit-code'.
මැයි 29 22:07:43 thaali systemd[1]: Failed to start MySQL Community Server.
This is the error that's throw me when i tried to connect
root#thaali:/etc/mysql# mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
Can any one please help me to solve this and i have seen in some places i have edit etc/my.cnf to fix this in my case i don't have such a file
This one is really weird for I was not dist upgrading. One day it just didn't work.
When I tried journalctl -xe I got this
...
Oct 05 08:51:26 <servername> mysql-systemd-start[10914]: ERROR: Unable to start MySQL server:
Oct 05 08:51:26 <servername> mysql-systemd-start[10914]: mysqld: Error on realpath() on '/var/lib/mysql-files' (Error 2 - No such file or directory)
...
I fixed it by doing this:
sudo mkdir /var/lib/mysql-files
sudo chown -R mysql:mysql /var/lib/mysql-files/
sudo chmod 700 /var/lib/mysql-files/
sudo service mysql restart
Restarting the service didn't actually fix all problems I was having so I ended with rebooting the machine.

MySQL Service dosent start anymore

When i try to start mysql with:
service mysql start
/etc/init.d/mysql start
Then it takes a while and this shows:
[....] Starting mysql (via systemctl): mysql.serviceJob for mariadb.service failed because a timeout was exceeded.
See "systemctl status mariadb.service" and "journalctl -xe" for details.
failed!
Now when I go to journalctl -xe it shows:
Feb 18 14:54:43 mail systemd[1]: mariadb.service: Start operation timed out. Terminating.
Feb 18 14:55:24 mail systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE
Feb 18 14:55:24 mail systemd[1]: Failed to start MariaDB 10.1.37 database server.
Feb 18 14:56:14 mail mysqld[8490]: 2019-02-18 14:56:14 140312205868416 [Note] /usr/sbin/mysqld (mysqld 10.1.37-MariaDB-0+deb9u1) starting as process 8490 ...
Feb 18 14:57:44 mail systemd[1]: mariadb.service: Start operation timed out. Terminating.
Feb 18 14:58:25 mail systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE
Feb 18 14:58:25 mail systemd[1]: Failed to start MariaDB 10.1.37 database server.
I cant login anymore in root user. Then I start mysql in safemode and change the password.
this error mostly come when you moved from mysql to mariadb. here is the solution you need to run three commands and your application will start working again.
echo "/usr/sbin/mysqld { }" > /etc/apparmor.d/usr.sbin.mysqld
apparmor_parser -v -R /etc/apparmor.d/usr.sbin.mysqld systemctl
restart mariadb

MySQL Galera cluster can't initiate first node

I'm using Ubuntu 16.04 and installed MySQL version 5.7 via apt-get in AWS.
After that, I've managed to upgrade the MySQL to Galera Cluster by following the Documentation from the official website using apt-get install galera-3 galera-arbitrator-3 mysql-wsrep-5.6
After that I've configured the file /etc/mysql/conf.d/galera.cnf to be:
[mysqld]
binlog_format=ROW
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
bind-address=0.0.0.0
# Galera Provider Configuration
wsrep_on=ON
wsrep_provider=/usr/lib/galera/libgalera_smm.so
# Galera Cluster Configuration
wsrep_cluster_name="test_cluster"
wsrep_cluster_address="gcomm://this_node_ip,second_ip,third_ip"
# Galera Synchronization Configuration
wsrep_sst_method=rsync
# Galera Node Configuration
wsrep_node_address="this_node_ip"
wsrep_node_name="this_node_name"
The step above is repeated for the other 2 nodes (with it's own IP address). And stop the mysql with the following command sudo service mysql stop for each of the node.
And in the first node, I'm trying to start with the following command:
sudo service mysql start --wsrep-new-cluster
But it returns: Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
In the systemctl status mysql.service, it says:
● mysql.service - LSB: start and stop MySQL
Loaded: loaded (/etc/init.d/mysql; bad; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2018-02-09 15:53:16 +08; 33s ago
Docs: man:systemd-sysv-generator(8)
Process: 6264 ExecStart=/etc/init.d/mysql start (code=exited, status=1/FAILURE)
Feb 09 15:53:15 systemd[1]: Starting LSB: start and stop MySQL...
Feb 09 15:53:15 mysql[6264]: Starting MySQL
Feb 09 15:53:15 mysql[6264]: .180209 15:53:15 mysqld_safe Can't log to error log and syslog at the same time. Remove all --log-error configuration options for --syslog to take effect.
Feb 09 15:53:15 mysql[6264]: 180209 15:53:15 mysqld_safe Directory '/var/run/mysqld' for UNIX socket file don't exists.
Feb 09 15:53:16 mysql[6264]: * The server quit without updating PID file (/var/run/mysqld/mysqld.pid).
Feb 09 15:53:16 systemd[1]: mysql.service: Control process exited, code=exited status=1
Feb 09 15:53:16 systemd[1]: Failed to start LSB: start and stop MySQL.
Feb 09 15:53:16 systemd[1]: mysql.service: Unit entered failed state.
Feb 09 15:53:16 systemd[1]: mysql.service: Failed with result 'exit-code'.
Hope these information helps.