Systemd autoinit proxysql service

[epenia]

Hello i am Endika from spain and i like your software proxysql but, I did not find autoload configuration by proxysql.cnf config file to the initialize the service.
I would like to auto initialize service in systemd because not support this.

Your proxy's software is very interesting and if you need help to correct errors or you help to new implementations I help you.

[renecannao]

Hi Endika.
At today, ProxySQL has support for init but not for systemd .
Would you be interested in providing a pull request to support systemd ?
Thank you very much for your help!

[epenia]

Hello Rene.
I have translated the init to be compatible with systemd and script work, how I can send?

[epenia]

Hello René
It is my systemd init script.

code:
[Unit]
Description=Deamon of proxy SQL
After=syslog.target

[Service]
Type=forking
ExecStart=/etc/init.d/proxysql start
ExecStop=/etc/init.d/proxysql stop
ExecReload=/etc/init.d/proxysql restart
PIDFile=/etc/proxysql/proxysql.pid

[Install]
WantedBy=multi-user.target

[epenia]

Install systemd script into next path: /etc/systemd/system/proxysql.service

Enable autoload service at start system with: systemctl enable proxysql

Start or stop proxysql service with next intruction: systemctl start proxysql or systemctl stop proxysql

[vermeire-mathias]

Hi,

I working on centos7 and I have the same problem.
On centos7 you can use both systemd and init scripts.
If you try to add proxysql to chkconfig it gives a error:

[root@proxysql2 ~]# chkconfig --add proxysql
service proxysql does not support chkconfig

The problem is the LSB stanza, see below. (also see man page chkconfig)
As for the fix Sxwark provided, I don't think its the correct way to implement systemd services.
If you want I can spend some time creating a better version.

not working:
# Provides : proxysql
# Required-Start : $local_fs
# Required-Stop  : $local_fs
# Default-Start     : 2 3 4 5
# Default-Stop      : 0 1 6
# Short-Description : High Performance Advanced Proxy for MySQL
# Description : High Performance and Advanced Proxy for MySQL and forks.
#               It provides advanced features like connection pool, query routing and rewrite,
#               firewalling, throttling, real time analysis, error-free failover


working:
### BEGIN INIT INFO
# Provides: proxysql
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: High Performance Advanced Proxy for MySQL
# Description: High Performance and Advanced Proxy for MySQL and forks.
#               It provides advanced features like connection pool, query routing and rewrite,
#               firewalling, throttling, real time analysis, error-free failover
### END INIT INFO

[renecannao]

Hi,
thank you for your interest and contribution.
Pull requests are more than welcome, so please feel free to create a pull request and I will be happy to merge it.
If not, I can take this sample and add it myself.
Thank you!

[vermeire-mathias]

Hi,

I created a pull request (#471)
Do you need extra hand to make a systemd service or is it covered by someone?

Kr
Mathias

[renecannao]

Merged also into v1.1.1

@vermeire-mathias : I haven't try the systemd script yet

[dveeden]

A proper SystemD unit file would be nice. I don't think a unit file which just calls the rc scripts is the proper way..

[dveeden]

With MySQL the mysqld_safe was removed to allow systemd to handle things properly. Also the 'angel' process is no longer needed with systemd.

Looks like proxysql does a similar thing:

root      4784     1  0 20:31 ?        00:00:00 proxysql -c /etc/proxysql.cnf -D /var/lib/proxysql
root      4785  4784  0 20:31 ?        00:00:00 proxysql -c /etc/proxysql.cnf -D /var/lib/proxysql

[renecannao]

@dveeden : any suggestion on SystemD unit file? I don't have experience with it.

With regards to the angel process, I do not plan to remove the functionality, for not SystemD systems or for other standalone systems (Docker?).

Thanks

[dveeden]

My take on proxysql.service:

[Unit]
Description=High Performance Advanced Proxy for MySQL
After=network.target

[Service]
LimitNOFILE=102400
LimitCORE=1073741824
ExecStart=/usr/local/bin/proxysql -f
Restart=always

[Install]
WantedBy=default.target

I've put this in /etc/systemd/system and ran

systemctl daemon-reload
systemctl enable proxysql
systemctl start proxysql

There is no angel process. There is just one proxysql process. If I kill the proxysql process (to simulate a crash) it is restarted by systemd.

Because of the -f logging is sent to stdout and captured by systemd.
To view the logging: journalctl /usr/local/bin/proxysql

The 'initial' option of the System V init script is not present in this systemd setup.

The RPM should place the unit file in /usr/lib/systemd/system