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systemctl status mysqld.service shows activating


MySQL not getting started on linuxI can't enable or disable a user service: Failed to execute operation: No such file or directorysystemd says permission denied for /bin/shmysql service restarted during user being connected lead to failing serviceService Start Issue SystemdWhy x0vncserver is not starting at boot?What is the difference between Process: and Main PID: in the output of systemctl status?How can I start systemd service units in order?Why is systemd stopping service immediately after it is started?Nginx service misbehaving, systemd vs upstart?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








1















I have configured MySQL 5.7.25 instance using Linux Generic Binaries on a separate mount point (instead of default locations) on a test server (RHEL 7.4).



The systemd support, in this case, must be manually configured, which I did.



My question is regarding systemctl command.
When I issue systemctl status mysqld.service, the output shows activating (start) but the service is started successfully (at least I think so as per alert logs) and I don't get the prompt back. I have to CTRL+C to get the prompt back.
In the case of other services, systemctl status shows active (started).
Also, systemctl status mysqld.service shows "PID file /usr/local/mysql/data/mysqld.pid not readable (yet?) after start."



The PID gets generated in the defined location as can be seen below in ls -l output.



How do I deal with this?



Following is the output of the systemctl status mysqld.service



> [root@localhost system]# systemctl status mysqld.service ●
> mysqld.service - MySQL Server Loaded: loaded
> (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset:
> disabled) Active: **activating (start)** since Wed 2019-03-27
> 16:58:13 IST; 5min ago
> Docs: man:mysqld(7)
> http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 9307
> ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) CGroup:
> /system.slice/mysqld.service
> └─9309 /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/...
> 
> Mar 27 16:58:13 localhost.localdomain systemd[1]: **Starting MySQL
> Server...** Mar 27 16:58:13 localhost.localdomain systemd[1]: **PID
> file /usr/local/mysql/data/mysqld.pid not readable (yet?) after
> start.** [root@localhost system]#


Following is the output of ls -l for the data directory.



[root@localhost mysql_data]# ls -l
total 122964
-rw-r-----. 1 mysql mysql 56 Mar 27 16:14 auto.cnf
-rw-r-----. 1 mysql mysql 283 Mar 27 16:58 ib_buffer_pool
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibdata1
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:58 ib_logfile0
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:13 ib_logfile1
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibtmp1
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 mysql
-rw-r-----. 1 mysql mysql 41256 Mar 27 16:58 mysqld.log
-rw-r-----. 1 mysql mysql 5 Mar 27 16:58 mysqld.pid
srwxrwxrwx. 1 mysql mysql 0 Mar 27 16:58 mysql.sock
-rw-------. 1 mysql mysql 5 Mar 27 16:58 mysql.sock.lock
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 performance_schema
drwxr-x---. 2 mysql mysql 12288 Mar 27 16:14 sys
[root@localhost mysql_data]#


Following is the /usr/lib/systemd/system/mysqld.service file



> [root@localhost system]# cat mysqld.service [Unit] Description=MySQL
> Server Documentation=man:mysqld(7)
> Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
> After=network.target After=syslog.target
> 
> [Install] WantedBy=multi-user.target
> 
> [Service] User=mysql Group=mysql
> 
> Type=forking
> 
> PIDFile=/usr/local/mysql/data/mysqld.pid
> 
> # Disable service start and stop timeout logic of systemd for mysqld service. TimeoutSec=0
> 
> # Start main service ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS 
> 
> # Use this to switch malloc implementation EnvironmentFile=-/etc/sysconfig/mysql
> 
> # Sets open_files_limit LimitNOFILE = infinity
> 
> Restart=on-failure
> 
> RestartPreventExitStatus=1
> 
> PrivateTmp=false [root@localhost system]#


Follwing is the alert log file which shows that mysqld is ready for connections.



2019-03-27T11:28:13.334048Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-03-27T11:28:13.335294Z 0 [Note] /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld (mysqld 5.7.25) starting as process 9309 ...
2019-03-27T11:28:13.337926Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-03-27T11:28:13.337953Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-03-27T11:28:13.337959Z 0 [Note] InnoDB: Uses event mutexes
2019-03-27T11:28:13.337964Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2019-03-27T11:28:13.337969Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-03-27T11:28:13.337974Z 0 [Note] InnoDB: Using Linux native AIO
2019-03-27T11:28:13.338216Z 0 [Note] InnoDB: Number of pools: 1
2019-03-27T11:28:13.338317Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-03-27T11:28:13.339746Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-03-27T11:28:13.351813Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-03-27T11:28:13.353463Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-03-27T11:28:13.365875Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-03-27T11:28:13.380701Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-03-27T11:28:13.380772Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-03-27T11:28:13.417750Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-03-27T11:28:13.418493Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2019-03-27T11:28:13.418503Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2019-03-27T11:28:13.418713Z 0 [Note] InnoDB: Waiting for purge to start
2019-03-27T11:28:13.472045Z 0 [Note] InnoDB: 5.7.25 started; log sequence number 2524297
2019-03-27T11:28:13.472824Z 0 [Note] InnoDB: Loading buffer pool(s) from /mysql/mysql_data/ib_buffer_pool
2019-03-27T11:28:13.473297Z 0 [Note] Plugin 'FEDERATED' is disabled.
2019-03-27T11:28:13.474439Z 0 [Note] InnoDB: Buffer pool(s) load completed at 190327 16:58:13
2019-03-27T11:28:13.478030Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2019-03-27T11:28:13.478659Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2019-03-27T11:28:13.478711Z 0 [Note] IPv6 is available.
2019-03-27T11:28:13.478724Z 0 [Note] - '::' resolves to '::';
2019-03-27T11:28:13.478745Z 0 [Note] Server socket created on IP: '::'.
2019-03-27T11:28:13.489601Z 0 [Note] Event Scheduler: Loaded 0 events
2019-03-27T11:28:13.489791Z 0 [Note] **/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld: ready for connections.**
Version: '5.7.25' socket: '/mysql/mysql_data/mysql.sock' port: 3306 MySQL Community Server (GPL)


I have tried the same procedure twice with same issue.
The systemctl status mysqld.service shows activating (start) and does not return the prompt.
I can log in to the database.






systemd mysql systemctl







share|improve this question
























  • Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

    – erTugRul
    Mar 27 at 12:26











  • I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

    – Avinash Pawar
    Mar 28 at 5:13

















1















I have configured MySQL 5.7.25 instance using Linux Generic Binaries on a separate mount point (instead of default locations) on a test server (RHEL 7.4).



The systemd support, in this case, must be manually configured, which I did.



My question is regarding systemctl command.
When I issue systemctl status mysqld.service, the output shows activating (start) but the service is started successfully (at least I think so as per alert logs) and I don't get the prompt back. I have to CTRL+C to get the prompt back.
In the case of other services, systemctl status shows active (started).
Also, systemctl status mysqld.service shows "PID file /usr/local/mysql/data/mysqld.pid not readable (yet?) after start."



The PID gets generated in the defined location as can be seen below in ls -l output.



How do I deal with this?



Following is the output of the systemctl status mysqld.service



> [root@localhost system]# systemctl status mysqld.service ●
> mysqld.service - MySQL Server Loaded: loaded
> (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset:
> disabled) Active: **activating (start)** since Wed 2019-03-27
> 16:58:13 IST; 5min ago
> Docs: man:mysqld(7)
> http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 9307
> ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) CGroup:
> /system.slice/mysqld.service
> └─9309 /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/...
> 
> Mar 27 16:58:13 localhost.localdomain systemd[1]: **Starting MySQL
> Server...** Mar 27 16:58:13 localhost.localdomain systemd[1]: **PID
> file /usr/local/mysql/data/mysqld.pid not readable (yet?) after
> start.** [root@localhost system]#


Following is the output of ls -l for the data directory.



[root@localhost mysql_data]# ls -l
total 122964
-rw-r-----. 1 mysql mysql 56 Mar 27 16:14 auto.cnf
-rw-r-----. 1 mysql mysql 283 Mar 27 16:58 ib_buffer_pool
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibdata1
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:58 ib_logfile0
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:13 ib_logfile1
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibtmp1
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 mysql
-rw-r-----. 1 mysql mysql 41256 Mar 27 16:58 mysqld.log
-rw-r-----. 1 mysql mysql 5 Mar 27 16:58 mysqld.pid
srwxrwxrwx. 1 mysql mysql 0 Mar 27 16:58 mysql.sock
-rw-------. 1 mysql mysql 5 Mar 27 16:58 mysql.sock.lock
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 performance_schema
drwxr-x---. 2 mysql mysql 12288 Mar 27 16:14 sys
[root@localhost mysql_data]#


Following is the /usr/lib/systemd/system/mysqld.service file



> [root@localhost system]# cat mysqld.service [Unit] Description=MySQL
> Server Documentation=man:mysqld(7)
> Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
> After=network.target After=syslog.target
> 
> [Install] WantedBy=multi-user.target
> 
> [Service] User=mysql Group=mysql
> 
> Type=forking
> 
> PIDFile=/usr/local/mysql/data/mysqld.pid
> 
> # Disable service start and stop timeout logic of systemd for mysqld service. TimeoutSec=0
> 
> # Start main service ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS 
> 
> # Use this to switch malloc implementation EnvironmentFile=-/etc/sysconfig/mysql
> 
> # Sets open_files_limit LimitNOFILE = infinity
> 
> Restart=on-failure
> 
> RestartPreventExitStatus=1
> 
> PrivateTmp=false [root@localhost system]#


Follwing is the alert log file which shows that mysqld is ready for connections.



2019-03-27T11:28:13.334048Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-03-27T11:28:13.335294Z 0 [Note] /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld (mysqld 5.7.25) starting as process 9309 ...
2019-03-27T11:28:13.337926Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-03-27T11:28:13.337953Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-03-27T11:28:13.337959Z 0 [Note] InnoDB: Uses event mutexes
2019-03-27T11:28:13.337964Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2019-03-27T11:28:13.337969Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-03-27T11:28:13.337974Z 0 [Note] InnoDB: Using Linux native AIO
2019-03-27T11:28:13.338216Z 0 [Note] InnoDB: Number of pools: 1
2019-03-27T11:28:13.338317Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-03-27T11:28:13.339746Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-03-27T11:28:13.351813Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-03-27T11:28:13.353463Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-03-27T11:28:13.365875Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-03-27T11:28:13.380701Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-03-27T11:28:13.380772Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-03-27T11:28:13.417750Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-03-27T11:28:13.418493Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2019-03-27T11:28:13.418503Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2019-03-27T11:28:13.418713Z 0 [Note] InnoDB: Waiting for purge to start
2019-03-27T11:28:13.472045Z 0 [Note] InnoDB: 5.7.25 started; log sequence number 2524297
2019-03-27T11:28:13.472824Z 0 [Note] InnoDB: Loading buffer pool(s) from /mysql/mysql_data/ib_buffer_pool
2019-03-27T11:28:13.473297Z 0 [Note] Plugin 'FEDERATED' is disabled.
2019-03-27T11:28:13.474439Z 0 [Note] InnoDB: Buffer pool(s) load completed at 190327 16:58:13
2019-03-27T11:28:13.478030Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2019-03-27T11:28:13.478659Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2019-03-27T11:28:13.478711Z 0 [Note] IPv6 is available.
2019-03-27T11:28:13.478724Z 0 [Note] - '::' resolves to '::';
2019-03-27T11:28:13.478745Z 0 [Note] Server socket created on IP: '::'.
2019-03-27T11:28:13.489601Z 0 [Note] Event Scheduler: Loaded 0 events
2019-03-27T11:28:13.489791Z 0 [Note] **/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld: ready for connections.**
Version: '5.7.25' socket: '/mysql/mysql_data/mysql.sock' port: 3306 MySQL Community Server (GPL)


I have tried the same procedure twice with same issue.
The systemctl status mysqld.service shows activating (start) and does not return the prompt.
I can log in to the database.






systemd mysql systemctl







share|improve this question
























  • Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

    – erTugRul
    Mar 27 at 12:26











  • I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

    – Avinash Pawar
    Mar 28 at 5:13













1












1








1








I have configured MySQL 5.7.25 instance using Linux Generic Binaries on a separate mount point (instead of default locations) on a test server (RHEL 7.4).



The systemd support, in this case, must be manually configured, which I did.



My question is regarding systemctl command.
When I issue systemctl status mysqld.service, the output shows activating (start) but the service is started successfully (at least I think so as per alert logs) and I don't get the prompt back. I have to CTRL+C to get the prompt back.
In the case of other services, systemctl status shows active (started).
Also, systemctl status mysqld.service shows "PID file /usr/local/mysql/data/mysqld.pid not readable (yet?) after start."



The PID gets generated in the defined location as can be seen below in ls -l output.



How do I deal with this?



Following is the output of the systemctl status mysqld.service



> [root@localhost system]# systemctl status mysqld.service ●
> mysqld.service - MySQL Server Loaded: loaded
> (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset:
> disabled) Active: **activating (start)** since Wed 2019-03-27
> 16:58:13 IST; 5min ago
> Docs: man:mysqld(7)
> http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 9307
> ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) CGroup:
> /system.slice/mysqld.service
> └─9309 /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/...
> 
> Mar 27 16:58:13 localhost.localdomain systemd[1]: **Starting MySQL
> Server...** Mar 27 16:58:13 localhost.localdomain systemd[1]: **PID
> file /usr/local/mysql/data/mysqld.pid not readable (yet?) after
> start.** [root@localhost system]#


Following is the output of ls -l for the data directory.



[root@localhost mysql_data]# ls -l
total 122964
-rw-r-----. 1 mysql mysql 56 Mar 27 16:14 auto.cnf
-rw-r-----. 1 mysql mysql 283 Mar 27 16:58 ib_buffer_pool
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibdata1
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:58 ib_logfile0
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:13 ib_logfile1
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibtmp1
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 mysql
-rw-r-----. 1 mysql mysql 41256 Mar 27 16:58 mysqld.log
-rw-r-----. 1 mysql mysql 5 Mar 27 16:58 mysqld.pid
srwxrwxrwx. 1 mysql mysql 0 Mar 27 16:58 mysql.sock
-rw-------. 1 mysql mysql 5 Mar 27 16:58 mysql.sock.lock
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 performance_schema
drwxr-x---. 2 mysql mysql 12288 Mar 27 16:14 sys
[root@localhost mysql_data]#


Following is the /usr/lib/systemd/system/mysqld.service file



> [root@localhost system]# cat mysqld.service [Unit] Description=MySQL
> Server Documentation=man:mysqld(7)
> Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
> After=network.target After=syslog.target
> 
> [Install] WantedBy=multi-user.target
> 
> [Service] User=mysql Group=mysql
> 
> Type=forking
> 
> PIDFile=/usr/local/mysql/data/mysqld.pid
> 
> # Disable service start and stop timeout logic of systemd for mysqld service. TimeoutSec=0
> 
> # Start main service ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS 
> 
> # Use this to switch malloc implementation EnvironmentFile=-/etc/sysconfig/mysql
> 
> # Sets open_files_limit LimitNOFILE = infinity
> 
> Restart=on-failure
> 
> RestartPreventExitStatus=1
> 
> PrivateTmp=false [root@localhost system]#


Follwing is the alert log file which shows that mysqld is ready for connections.



2019-03-27T11:28:13.334048Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-03-27T11:28:13.335294Z 0 [Note] /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld (mysqld 5.7.25) starting as process 9309 ...
2019-03-27T11:28:13.337926Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-03-27T11:28:13.337953Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-03-27T11:28:13.337959Z 0 [Note] InnoDB: Uses event mutexes
2019-03-27T11:28:13.337964Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2019-03-27T11:28:13.337969Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-03-27T11:28:13.337974Z 0 [Note] InnoDB: Using Linux native AIO
2019-03-27T11:28:13.338216Z 0 [Note] InnoDB: Number of pools: 1
2019-03-27T11:28:13.338317Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-03-27T11:28:13.339746Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-03-27T11:28:13.351813Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-03-27T11:28:13.353463Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-03-27T11:28:13.365875Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-03-27T11:28:13.380701Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-03-27T11:28:13.380772Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-03-27T11:28:13.417750Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-03-27T11:28:13.418493Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2019-03-27T11:28:13.418503Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2019-03-27T11:28:13.418713Z 0 [Note] InnoDB: Waiting for purge to start
2019-03-27T11:28:13.472045Z 0 [Note] InnoDB: 5.7.25 started; log sequence number 2524297
2019-03-27T11:28:13.472824Z 0 [Note] InnoDB: Loading buffer pool(s) from /mysql/mysql_data/ib_buffer_pool
2019-03-27T11:28:13.473297Z 0 [Note] Plugin 'FEDERATED' is disabled.
2019-03-27T11:28:13.474439Z 0 [Note] InnoDB: Buffer pool(s) load completed at 190327 16:58:13
2019-03-27T11:28:13.478030Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2019-03-27T11:28:13.478659Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2019-03-27T11:28:13.478711Z 0 [Note] IPv6 is available.
2019-03-27T11:28:13.478724Z 0 [Note] - '::' resolves to '::';
2019-03-27T11:28:13.478745Z 0 [Note] Server socket created on IP: '::'.
2019-03-27T11:28:13.489601Z 0 [Note] Event Scheduler: Loaded 0 events
2019-03-27T11:28:13.489791Z 0 [Note] **/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld: ready for connections.**
Version: '5.7.25' socket: '/mysql/mysql_data/mysql.sock' port: 3306 MySQL Community Server (GPL)


I have tried the same procedure twice with same issue.
The systemctl status mysqld.service shows activating (start) and does not return the prompt.
I can log in to the database.






systemd mysql systemctl







share|improve this question
















I have configured MySQL 5.7.25 instance using Linux Generic Binaries on a separate mount point (instead of default locations) on a test server (RHEL 7.4).



The systemd support, in this case, must be manually configured, which I did.



My question is regarding systemctl command.
When I issue systemctl status mysqld.service, the output shows activating (start) but the service is started successfully (at least I think so as per alert logs) and I don't get the prompt back. I have to CTRL+C to get the prompt back.
In the case of other services, systemctl status shows active (started).
Also, systemctl status mysqld.service shows "PID file /usr/local/mysql/data/mysqld.pid not readable (yet?) after start."



The PID gets generated in the defined location as can be seen below in ls -l output.



How do I deal with this?



Following is the output of the systemctl status mysqld.service



> [root@localhost system]# systemctl status mysqld.service ●
> mysqld.service - MySQL Server Loaded: loaded
> (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset:
> disabled) Active: **activating (start)** since Wed 2019-03-27
> 16:58:13 IST; 5min ago
> Docs: man:mysqld(7)
> http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 9307
> ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) CGroup:
> /system.slice/mysqld.service
> └─9309 /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/...
> 
> Mar 27 16:58:13 localhost.localdomain systemd[1]: **Starting MySQL
> Server...** Mar 27 16:58:13 localhost.localdomain systemd[1]: **PID
> file /usr/local/mysql/data/mysqld.pid not readable (yet?) after
> start.** [root@localhost system]#


Following is the output of ls -l for the data directory.



[root@localhost mysql_data]# ls -l
total 122964
-rw-r-----. 1 mysql mysql 56 Mar 27 16:14 auto.cnf
-rw-r-----. 1 mysql mysql 283 Mar 27 16:58 ib_buffer_pool
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibdata1
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:58 ib_logfile0
-rw-r-----. 1 mysql mysql 50331648 Mar 27 16:13 ib_logfile1
-rw-r-----. 1 mysql mysql 12582912 Mar 27 16:58 ibtmp1
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 mysql
-rw-r-----. 1 mysql mysql 41256 Mar 27 16:58 mysqld.log
-rw-r-----. 1 mysql mysql 5 Mar 27 16:58 mysqld.pid
srwxrwxrwx. 1 mysql mysql 0 Mar 27 16:58 mysql.sock
-rw-------. 1 mysql mysql 5 Mar 27 16:58 mysql.sock.lock
drwxr-x---. 2 mysql mysql 4096 Mar 27 16:14 performance_schema
drwxr-x---. 2 mysql mysql 12288 Mar 27 16:14 sys
[root@localhost mysql_data]#


Following is the /usr/lib/systemd/system/mysqld.service file



> [root@localhost system]# cat mysqld.service [Unit] Description=MySQL
> Server Documentation=man:mysqld(7)
> Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
> After=network.target After=syslog.target
> 
> [Install] WantedBy=multi-user.target
> 
> [Service] User=mysql Group=mysql
> 
> Type=forking
> 
> PIDFile=/usr/local/mysql/data/mysqld.pid
> 
> # Disable service start and stop timeout logic of systemd for mysqld service. TimeoutSec=0
> 
> # Start main service ExecStart=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld
> --lc-messages-dir=/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/share
> --daemonize --pid-file=/mysql/mysql_data/mysqld.pid $MYSQLD_OPTS 
> 
> # Use this to switch malloc implementation EnvironmentFile=-/etc/sysconfig/mysql
> 
> # Sets open_files_limit LimitNOFILE = infinity
> 
> Restart=on-failure
> 
> RestartPreventExitStatus=1
> 
> PrivateTmp=false [root@localhost system]#


Follwing is the alert log file which shows that mysqld is ready for connections.



2019-03-27T11:28:13.334048Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-03-27T11:28:13.335294Z 0 [Note] /mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld (mysqld 5.7.25) starting as process 9309 ...
2019-03-27T11:28:13.337926Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-03-27T11:28:13.337953Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-03-27T11:28:13.337959Z 0 [Note] InnoDB: Uses event mutexes
2019-03-27T11:28:13.337964Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2019-03-27T11:28:13.337969Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-03-27T11:28:13.337974Z 0 [Note] InnoDB: Using Linux native AIO
2019-03-27T11:28:13.338216Z 0 [Note] InnoDB: Number of pools: 1
2019-03-27T11:28:13.338317Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-03-27T11:28:13.339746Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-03-27T11:28:13.351813Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-03-27T11:28:13.353463Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-03-27T11:28:13.365875Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-03-27T11:28:13.380701Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-03-27T11:28:13.380772Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-03-27T11:28:13.417750Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-03-27T11:28:13.418493Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2019-03-27T11:28:13.418503Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2019-03-27T11:28:13.418713Z 0 [Note] InnoDB: Waiting for purge to start
2019-03-27T11:28:13.472045Z 0 [Note] InnoDB: 5.7.25 started; log sequence number 2524297
2019-03-27T11:28:13.472824Z 0 [Note] InnoDB: Loading buffer pool(s) from /mysql/mysql_data/ib_buffer_pool
2019-03-27T11:28:13.473297Z 0 [Note] Plugin 'FEDERATED' is disabled.
2019-03-27T11:28:13.474439Z 0 [Note] InnoDB: Buffer pool(s) load completed at 190327 16:58:13
2019-03-27T11:28:13.478030Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2019-03-27T11:28:13.478659Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2019-03-27T11:28:13.478711Z 0 [Note] IPv6 is available.
2019-03-27T11:28:13.478724Z 0 [Note] - '::' resolves to '::';
2019-03-27T11:28:13.478745Z 0 [Note] Server socket created on IP: '::'.
2019-03-27T11:28:13.489601Z 0 [Note] Event Scheduler: Loaded 0 events
2019-03-27T11:28:13.489791Z 0 [Note] **/mysql/mysql_install/mysql-5.7.25-linux-glibc2.12-x86_64/bin/mysqld: ready for connections.**
Version: '5.7.25' socket: '/mysql/mysql_data/mysql.sock' port: 3306 MySQL Community Server (GPL)


I have tried the same procedure twice with same issue.
The systemctl status mysqld.service shows activating (start) and does not return the prompt.
I can log in to the database.






systemd mysql systemctl




systemd mysql systemctl






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 28 at 0:44









Rui F Ribeiro

41.9k1483142




41.9k1483142










asked Mar 27 at 11:55









Avinash PawarAvinash Pawar

155




155












  • Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

    – erTugRul
    Mar 27 at 12:26











  • I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

    – Avinash Pawar
    Mar 28 at 5:13

















  • Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

    – erTugRul
    Mar 27 at 12:26











  • I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

    – Avinash Pawar
    Mar 28 at 5:13
















Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

– erTugRul
Mar 27 at 12:26





Path for mysqld.pid in your service showing in /usr/local/mysql/data/ but ls -l showing mysqld.pid in mysql_data directory. How ?

– erTugRul
Mar 27 at 12:26













I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

– Avinash Pawar
Mar 28 at 5:13





I too am trying to understand that. In mysqld.service file i mentioned path for pid file; ideally it ought to consider this option and it is using the same path.

– Avinash Pawar
Mar 28 at 5:13










1 Answer
1






active

oldest

votes


















1














From your output:




ExecStart=...mysqld ... --pid-file=/mysql/mysql_data/mysqld.pid ...




... does not match what you're asking systemd to watch:




PIDFile=/usr/local/mysql/data/mysqld.pid




correct one of those two, and you'll be in much better shape.






share|improve this answer























  • Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

    – Avinash Pawar
    Mar 28 at 5:32











  • Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

    – Jeff Schaller♦
    Mar 28 at 9:50






  • 1





    yes I tried it and systemctl status shows as active :-) happy. Thanks again.

    – Avinash Pawar
    Mar 28 at 14:12











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














From your output:




ExecStart=...mysqld ... --pid-file=/mysql/mysql_data/mysqld.pid ...




... does not match what you're asking systemd to watch:




PIDFile=/usr/local/mysql/data/mysqld.pid




correct one of those two, and you'll be in much better shape.






share|improve this answer























  • Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

    – Avinash Pawar
    Mar 28 at 5:32











  • Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

    – Jeff Schaller♦
    Mar 28 at 9:50






  • 1





    yes I tried it and systemctl status shows as active :-) happy. Thanks again.

    – Avinash Pawar
    Mar 28 at 14:12















1














From your output:




ExecStart=...mysqld ... --pid-file=/mysql/mysql_data/mysqld.pid ...




... does not match what you're asking systemd to watch:




PIDFile=/usr/local/mysql/data/mysqld.pid




correct one of those two, and you'll be in much better shape.






share|improve this answer























  • Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

    – Avinash Pawar
    Mar 28 at 5:32











  • Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

    – Jeff Schaller♦
    Mar 28 at 9:50






  • 1





    yes I tried it and systemctl status shows as active :-) happy. Thanks again.

    – Avinash Pawar
    Mar 28 at 14:12













1












1








1







From your output:




ExecStart=...mysqld ... --pid-file=/mysql/mysql_data/mysqld.pid ...




... does not match what you're asking systemd to watch:




PIDFile=/usr/local/mysql/data/mysqld.pid




correct one of those two, and you'll be in much better shape.






share|improve this answer













From your output:




ExecStart=...mysqld ... --pid-file=/mysql/mysql_data/mysqld.pid ...




... does not match what you're asking systemd to watch:




PIDFile=/usr/local/mysql/data/mysqld.pid




correct one of those two, and you'll be in much better shape.







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 27 at 12:56









Jeff Schaller♦Jeff Schaller

44.7k1163145




44.7k1163145












  • Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

    – Avinash Pawar
    Mar 28 at 5:32











  • Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

    – Jeff Schaller♦
    Mar 28 at 9:50






  • 1





    yes I tried it and systemctl status shows as active :-) happy. Thanks again.

    – Avinash Pawar
    Mar 28 at 14:12

















  • Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

    – Avinash Pawar
    Mar 28 at 5:32











  • Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

    – Jeff Schaller♦
    Mar 28 at 9:50






  • 1





    yes I tried it and systemctl status shows as active :-) happy. Thanks again.

    – Avinash Pawar
    Mar 28 at 14:12
















Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

– Avinash Pawar
Mar 28 at 5:32





Well i am really sorry. it was sheer folly on my part. i didn't pay enough attention to the mysqld.service file. Thanks Jeff Schaller.

– Avinash Pawar
Mar 28 at 5:32













Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

– Jeff Schaller♦
Mar 28 at 9:50





Sometimes it just takes a second pair of eyes! Happy it helped; if this solved your problem, please click the check mark next to it to indicate to the system that this question has been answered; thank you!

– Jeff Schaller♦
Mar 28 at 9:50




1




1





yes I tried it and systemctl status shows as active :-) happy. Thanks again.

– Avinash Pawar
Mar 28 at 14:12





yes I tried it and systemctl status shows as active :-) happy. Thanks again.

– Avinash Pawar
Mar 28 at 14:12

















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