After upgrade 14.04 to 16.04.1 Postgresql server does not start
Solution 1:
Systemd should use script from /etc/init.d. Instead, systemd uses some kind of template file. To fix that, follow that steps:
-
Remove invalid service script:
# rm /lib/systemd/system/postgresql.service -
Reload daemon scripts:
# systemctl daemon-reload -
Enable postgresql service:
# systemctl enable postgresql
After that, you would be able to start postgres with any preferred variants: sudo systemctl start postgresql, sudo service postgresql start, or sudo /etc/init.d/postgresql start. To check that postgresql actually run, please check the status of service: sudo systemctl status postgresql. It sould looks like:
% sudo systemctl status postgresql
● postgresql.service - LSB: PostgreSQL RDBMS server
Loaded: loaded (/etc/init.d/postgresql; bad; vendor preset: enabled)
Active: active (running) since Пт 2016-08-12 10:13:43 MSK; 1h 37min ago
Docs: man:systemd-sysv-generator(8)
CGroup: /system.slice/postgresql.service
├─4086 /usr/lib/postgresql/9.5/bin/postgres -D /var/lib/postgresql/9.5/main -c config_file=/etc/postgresql/9.5/main/postgresql.conf
├─4099 postgres: checkpointer process
├─4100 postgres: writer process
├─4101 postgres: wal writer process
├─4102 postgres: autovacuum launcher process
└─4103 postgres: stats collector process
авг 12 10:13:40 ubuntu-precise systemd[1]: Starting LSB: PostgreSQL RDBMS server...
авг 12 10:13:40 ubuntu-precise postgresql[4009]: * Starting PostgreSQL 9.5 database server
авг 12 10:13:43 ubuntu-precise postgresql[4009]: ...done.
авг 12 10:13:43 ubuntu-precise systemd[1]: Started LSB: PostgreSQL RDBMS server.
Solution 2:
This should work out of the box if you provide the correct version and cluster name.
Lets say you're running version 9.5 and the cluster is called main:
Start: systemctl start [email protected]
Stop: systemctl stop [email protected]
Status: systemctl status [email protected]
Enable autostart on boot: systemctl enable [email protected]
Disable autostart on boot: systemctl disable [email protected]
foo@postgres:~$ systemctl status [email protected]
● [email protected] - PostgreSQL Cluster 9.5-main
Loaded: loaded (/lib/systemd/system/[email protected]; disabled; vendor preset: enabled)
Active: active (running) since Fri 2017-03-31 17:44:46 CEST; 59s ago
Main PID: 4546 (postgres)
CGroup: /system.slice/system-postgresql.slice/[email protected]
├ ─ 4546 /usr/lib/postgresql/9.5/bin/postgres -D /var/lib/postgresql/9.5/main -c config_file=/etc/postgresql/9.5/main/postgresql.conf
├ ─ 4548 postgres: checkpointer process
├ ─ 4549 postgres: writer process
├ ─ 4550 postgres: wal writer process
├ ─ 4551 postgres: autovacuum launcher process
└ ─ 4552 postgres: stats collector process
Mar 31 17:44:44 postgres postgres[4546]: [1-2] 2017-03-31 17:44:44 CEST [4546] @ HINT: Future log output will go to log destination "syslog".
Mar 31 17:44:44 postgres postgres[4547]: [2-1] 2017-03-31 17:44:44 CEST [4547] @ LOG: database system was shut down at 2017-03-31 17:44:43 CEST
Mar 31 17:44:44 postgres postgres[4547]: [3-1] 2017-03-31 17:44:44 CEST [4547] @ LOG: MultiXact member wraparound protections are now enabled
Mar 31 17:44:44 postgres postgres[4546]: [2-1] 2017-03-31 17:44:44 CEST [4546] @ LOG: database system is ready to accept connections
Mar 31 17:44:44 postgres postgres[4551]: [2-1] 2017-03-31 17:44:44 CEST [4551] @ LOG: autovacuum launcher started
Mar 31 17:44:45 postgres postgres[4553]: [3-1] 2017-03-31 17:44:45 CEST [4553] [unknown]@[unknown] LOG: incomplete startup packet
Mar 31 17:44:46 postgres systemd[1]: Started PostgreSQL Cluster 9.5-main.
Mar 31 17:44:47 postgres systemd[1]: Reloading PostgreSQL Cluster 9.5-main.
Mar 31 17:44:47 postgres postgres[4546]: [3-1] 2017-03-31 17:44:47 CEST [4546] @ LOG: received SIGHUP, reloading configuration files
Mar 31 17:44:47 systemd[1]: Reloaded PostgreSQL Cluster 9.5-main.